Point-of-Care Ultrasound in Pediatric Emergency Medicine: Current Applications, Limitations, and Future Directions

Francesco Sogni; Simone Pilloni; Lorenzo Ciavola; Claudia Infantino; Cristiano Conte; Valentina Fainardi; Susanna Esposito

doi:10.23750/abm.v97i1.18209

Authors

Francesco Sogni Pediatric Clinic, Parma University Hospital, Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
Simone Pilloni Pediatric Clinic, Parma University Hospital, Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
Lorenzo Ciavola Pediatric Clinic, Parma University Hospital, Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
Claudia Infantino Pediatric Clinic, Parma University Hospital, Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
Cristiano Conte Pediatric Clinic, Parma University Hospital, Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
Valentina Fainardi Pediatric Clinic, Parma University Hospital, Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy
Susanna Esposito Pediatric Clinic, Parma University Hospital, Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy

Keywords:

point-of-care ultrasound; pediatric emergency medicine; e-FAST; resuscitation; procedural guidance; diagnostic imaging.

Abstract

Point-of-care ultrasound (POCUS) has emerged as an invaluable tool in pediatric emergency medicine, offering rapid, non-invasive, and radiation-free diagnostic and procedural support directly at the bedside. Its applications span three major domains: resuscitation, diagnostics, and procedures. In resuscitation, protocols such as e-FAST and RUSH facilitate rapid assessment of trauma, shock, and cardiac function, enabling timely intervention. Diagnostic uses encompass a broad spectrum, including soft tissue infections, pulmonary conditions, gastrointestinal emergencies, musculoskeletal injuries, renal pathology, testicular torsion, and ocular abnormalities. Procedurally, POCUS enhances accuracy and safety in endotracheal tube placement, vascular access, lumbar puncture, arthrocentesis, and suprapubic bladder aspiration. Evidence supports that POCUS can improve diagnostic accuracy, reduce time to intervention, and optimize patient management in pediatric emergency settings. However, its effectiveness and safety are dependent on rigorous, competency-based training programs that move beyond minimum scan numbers to include objective assessment and quality assurance, as highlighted in recent international guidelines. Limitations include operator dependence, potential misinterpretation, inability to visualize certain pathologies, and variability in integration into clinical workflows. Future research should focus on standardizing pediatric-specific protocols, defining competency thresholds, and evaluating the cost-effectiveness and patient-centered outcomes of POCUS implementation. Multicenter trials are needed to validate its role in diagnostic algorithms, assess its impact on patient flow, and explore novel applications such as artificial intelligence-assisted interpretation. Given its versatility and growing evidence base, POCUS represents a critical adjunct in pediatric emergency medicine, with the potential to reshape diagnostic and procedural strategies while improving safety and efficiency in acute care.

References

1. Marin JR, Lewiss RE; American Academy of Pediatrics, Committee on Pediatric Emergency Medicine; Society for Academic Emergency Medicine, Academy of Emergency Ultrasound; American College of Emergency Physicians, Pediatric Emergency Medicine Committee; World Interactive Network Focused on Critical Ultrasound. Point-of-care ultrasonography by pediatric emergency medicine physicians. Pediatrics. 2015 Apr;135(4):e1113-22. doi: 10.1542/peds.2015-0343. PMID: 25825532.

2. Moore CL, Copel JA. Point-of-care ultrasonography. N Engl J Med. 2011 Feb 24;364(8):749-57. doi: 10.1056/NEJMra0909487. PMID: 21345104.

3. Marin JR, Zuckerbraun NS, Kahn JM. Use of emergency ultrasound in United States pediatric emergency medicine fellowship programs in 2011. J Ultrasound Med. 2012 Sep;31(9):1357-63. doi: 10.7863/jum.2012.31.9.1357. PMID: 22922615.

4. Marin JR, Abo AM, Arroyo AC, Doniger SJ, Fischer JW, Rempell R, Gary B, Holmes JF, Kessler DO, Lam SH, Levine MC, Levy JA, Murray A, Ng L, Noble VE, Ramirez-Schrempp D, Riley DC, Saul T, Shah V, Sivitz AB, Tay ET, Teng D, Chaudoin L, Tsung JW, Vieira RL, Vitberg YM, Lewiss RE. Pediatric emergency medicine point-of-care ultrasound: summary of the evidence. Crit Ultrasound J. 2016 Dec;8(1):16. doi: 10.1186/s13089-016-0049-5. Epub 2016 Nov 3. Erratum in: Crit Ultrasound J. 2017 Dec;9(1):3. doi: 10.1186/s13089-017-0058-z. PMID: 27812885; PMCID: PMC5095098.

5. Levy JA, Noble VE. Bedside ultrasound in pediatric emergency medicine. Pediatrics. 2008 May;121(5):e1404-12. doi: 10.1542/peds.2007-1816. PMID: 18450883.

6. Fox JC, Boysen M, Gharahbaghian L, Cusick S, Ahmed SS, Anderson CL, Lekawa M, Langdorf MI. Test characteristics of focused assessment of sonography for trauma for clinically significant abdominal free fluid in pediatric blunt abdominal trauma. Acad Emerg Med. 2011 May;18(5):477-82. doi: 10.1111/j.1553-2712.2011.01071.x. PMID: 21569167.

7. Riera A, Hsiao AL, Langhan ML, Goodman TR, Chen L. Diagnosis of intussusception by physician novice sonographers in the emergency department. Ann Emerg Med. 2012 Sep;60(3):264-8. doi: 10.1016/j.annemergmed.2012.02.007. Epub 2012 Mar 15. PMID: 22424652; PMCID: PMC3431911.

8. Pearce MS, Salotti JA, Little MP, McHugh K, Lee C, Kim KP, Howe NL, Ronckers CM, Rajaraman P, Sir Craft AW, Parker L, Berrington de González A. Radiation exposure from CT scans in childhood and subsequent risk of leukaemia and brain tumours: a retrospective cohort study. Lancet. 2012 Aug 4;380(9840):499-505. doi: 10.1016/S0140-6736(12)60815-0. Epub 2012 Jun 7. PMID: 22681860; PMCID: PMC3418594.

9. Vieira RL, Hsu D, Nagler J, Chen L, Gallagher R, Levy JA; American Academy of Pediatrics. Pediatric emergency medicine fellow training in ultrasound: consensus educational guidelines. Acad Emerg Med. 2013 Mar;20(3):300-6. doi: 10.1111/acem.12087. PMID: 23517263.

10. Nance ML, Mahboubi S, Wickstrom M, Prendergast F, Stafford PW. Pattern of abdominal free fluid following isolated blunt spleen or liver injury in the pediatric patient. J Trauma. 2002 Jan;52(1):85-7. doi: 10.1097/00005373-200201000-00015. PMID: 11791056.

11. Kirkpatrick AW, Sirois M, Laupland KB, Liu D, Rowan K, Ball CG, Hameed SM, Brown R, Simons R, Dulchavsky SA, Hamiilton DR, Nicolaou S. Hand-held thoracic sonography for detecting post-traumatic pneumothoraces: the Extended Focused Assessment with Sonography for Trauma (EFAST). J Trauma. 2004 Aug;57(2):288-95. doi: 10.1097/01.ta.0000133565.88871.e4. PMID: 15345974.

12. Scaife ER, Fenton SJ, Hansen KW, Metzger RR. Use of focused abdominal sonography for trauma at pediatric and adult trauma centers: a survey. J Pediatr Surg. 2009 Sep;44(9):1746-9. doi: 10.1016/j.jpedsurg.2009.01.018. PMID: 19735819.

13. Holmes JF, Lillis K, Monroe D, Borgialli D, Kerrey BT, Mahajan P, Adelgais K, Ellison AM, Yen K, Atabaki S, Menaker J, Bonsu B, Quayle KS, Garcia M, Rogers A, Blumberg S, Lee L, Tunik M, Kooistra J, Kwok M, Cook LJ, Dean JM, Sokolove PE, Wisner DH, Ehrlich P, Cooper A, Dayan PS, Wootton-Gorges S, Kuppermann N; Pediatric Emergency Care Applied Research Network (PECARN). Identifying children at very low risk of clinically important blunt abdominal injuries. Ann Emerg Med. 2013 Aug;62(2):107-116.e2. doi: 10.1016/j.annemergmed.2012.11.009. Epub 2013 Feb 1. PMID: 23375510.

14. Holmes JF, Gladman A, Chang CH. Performance of abdominal ultrasonography in pediatric blunt trauma patients: a meta-analysis. J Pediatr Surg. 2007 Sep;42(9):1588-94. doi: 10.1016/j.jpedsurg.2007.04.023. PMID: 17848254.

15. Perera P, Mailhot T, Riley D, Mandavia D. The RUSH exam: Rapid Ultrasound in SHock in the evaluation of the critically lll. Emerg Med Clin North Am. 2010 Feb;28(1):29-56, vii. doi: 10.1016/j.emc.2009.09.010. PMID: 19945597.

16. McLario DJ, Sivitz AB. Point-of-Care Ultrasound in Pediatric Clinical Care. JAMA Pediatr. 2015 Jun;169(6):594-600. doi: 10.1001/jamapediatrics.2015.22. PMID: 25893571.

17. Pershad J, Myers S, Plouman C, Rosson C, Elam K, Wan J, Chin T. Bedside limited echocardiography by the emergency physician is accurate during evaluation of the critically ill patient. Pediatrics. 2004 Dec;114(6):e667-71. doi: 10.1542/peds.2004-0881. Epub 2004 Nov 15. PMID: 15545620.

18. Leeson K, Leeson B. Pediatric ultrasound: applications in the emergency department. Emerg Med Clin North Am. 2013 Aug;31(3):809-29. doi: 10.1016/j.emc.2013.05.005. Epub 2013 Jun 15. PMID: 23915605.

19. Via G, Hussain A, Wells M, Reardon R, ElBarbary M, Noble VE, Tsung JW, Neskovic AN, Price S, Oren-Grinberg A, Liteplo A, Cordioli R, Naqvi N, Rola P, Poelaert J, Guliĉ TG, Sloth E, Labovitz A, Kimura B, Breitkreutz R, Masani N, Bowra J, Talmor D, Guarracino F, Goudie A, Xiaoting W, Chawla R, Galderisi M, Blaivas M, Petrovic T, Storti E, Neri L, Melniker L; International Liaison Committee on Focused Cardiac UltraSound (ILC-FoCUS); International Conference on Focused Cardiac UltraSound (IC-FoCUS). International evidence-based recommendations for focused cardiac ultrasound. J Am Soc Echocardiogr. 2014 Jul;27(7):683.e1-683.e33. doi: 10.1016/j.echo.2014.05.001. PMID: 24951446.

20. Longjohn M, Wan J, Joshi V, Pershad J. Point-of-care echocardiography by pediatric emergency physicians. Pediatr Emerg Care. 2011 Aug;27(8):693-6. doi: 10.1097/PEC.0b013e318226c7c7. PMID: 21811201.

21. Milner D, Losek JD, Schiff J, Sicoli R. Pediatric pericardial tamponade presenting as altered mental status. Pediatr Emerg Care. 2003 Feb;19(1):35-7. doi: 10.1097/00006565-200302000-00010. PMID: 12592113.

22. Smith AT, Watnick C, Ferre RM. Cardiac Tamponade Diagnosed by Point-of-Care Ultrasound. Pediatr Emerg Care. 2017 Feb;33(2):132-134. doi: 10.1097/PEC.0000000000001024. PMID: 28141772.

23. Cheng AB, Levine DA, Tsung JW, Phoon CK. Emergency physician diagnosis of pediatric infective endocarditis by point-of-care echocardiography. Am J Emerg Med. 2012 Feb;30(2):386.e1-3. doi: 10.1016/j.ajem.2010.12.006. Epub 2011 Jan 26. PMID: 21266297.

24. Presley BC, Park DB, Sterner SE, Cheung C, Bailey S, Hayden GE. Pulmonary embolism in the pediatric emergency department: a case demonstrating the application of point-of-care cardiac ultrasound in a pediatric patient with pulmonary embolism. Pediatr Emerg Care. 2014 Nov;30(11):839-44. doi: 10.1097/PEC.0000000000000274. PMID: 25373574.

25. Labovitz AJ, Noble VE, Bierig M, Goldstein SA, Jones R, Kort S, Porter TR, Spencer KT, Tayal VS, Wei K. Focused cardiac ultrasound in the emergent setting: a consensus statement of the American Society of Echocardiography and American College of Emergency Physicians. J Am Soc Echocardiogr. 2010 Dec;23(12):1225-30. doi: 10.1016/j.echo.2010.10.005. PMID: 21111923.

26. De Backer D, Fagnoul D. Intensive care ultrasound: VI. Fluid responsiveness and shock assessment. Ann Am Thorac Soc. 2014 Jan;11(1):129-36. doi: 10.1513/AnnalsATS.201309-320OT. PMID: 24460447.

27. Orso D, Paoli I, Piani T, Cilenti FL, Cristiani L, Guglielmo N. Accuracy of Ultrasonographic Measurements of Inferior Vena Cava to Determine Fluid Responsiveness: A Systematic Review and Meta-Analysis. J Intensive Care Med. 2020 Apr;35(4):354-363. doi: 10.1177/0885066617752308. Epub 2018 Jan 17. PMID: 29343170.

28. Long E, Duke T, Oakley E, O'Brien A, Sheridan B, Babl FE; Pediatric Research in Emergency Departments International Collaborative (PREDICT). Does respiratory variation of inferior vena cava diameter predict fluid responsiveness in spontaneously ventilating children with sepsis. Emerg Med Australas. 2018 Aug;30(4):556-563. doi: 10.1111/1742-6723.12948. Epub 2018 Mar 8. PMID: 29520998.

29. Orso D, Paoli I, Piani T, Cilenti FL, Cristiani L, Guglielmo N. Accuracy of Ultrasonographic Measurements of Inferior Vena Cava to Determine Fluid Responsiveness: A Systematic Review and Meta-Analysis. J Intensive Care Med. 2020 Apr;35(4):354–363. doi:10.1177/0885066617752308. PMID: 29343170.

30. Huisman TA. Intracranial hemorrhage: ultrasound, CT and MRI findings. Eur Radiol. 2005 Mar;15(3):434-40. doi: 10.1007/s00330-004-2615-7. Epub 2005 Feb 5. PMID: 15696293.

31. Funk DJ, Jacobsohn E, Kumar A. The role of venous return in critical illness and shock-part I: physiology. Crit Care Med. 2013 Jan;41(1):255-62. doi: 10.1097/CCM.0b013e3182772ab6. PMID: 23269130.

32. Kathuria N, Ng L, Saul T, Lewiss RE. The baseline diameter of the inferior vena cava measured by sonography increases with age in normovolemic children. J Ultrasound Med. 2015 Jun;34(6):1091-6. doi: 10.7863/ultra.34.6.1091. PMID: 26014329.

33. Squire BT, Fox JC, Anderson C. ABSCESS: applied bedside sonography for convenient evaluation of superficial soft tissue infections. Acad Emerg Med. 2005 Jul;12(7):601-6. doi: 10.1197/j.aem.2005.01.016. PMID: 15995090.

34. Marin JR, Dean AJ, Bilker WB, Panebianco NL, Brown NJ, Alpern ER. Emergency ultrasound-assisted examination of skin and soft tissue infections in the pediatric emergency department. Acad Emerg Med. 2013 Jun;20(6):545-53. doi: 10.1111/acem.12148. PMID: 23758300; PMCID: PMC3682683.

35. Sivitz AB, Lam SH, Ramirez-Schrempp D, Valente JH, Nagdev AD. Effect of bedside ultrasound on management of pediatric soft-tissue infection. J Emerg Med. 2010 Nov;39(5):637-43. doi: 10.1016/j.jemermed.2009.05.013. Epub 2009 Aug 8. PMID: 19665335.

36. Iverson K, Haritos D, Thomas R, Kannikeswaran N. The effect of bedside ultrasound on diagnosis and management of soft tissue infections in a pediatric ED. Am J Emerg Med. 2012 Oct;30(8):1347-51. doi: 10.1016/j.ajem.2011.09.020. Epub 2011 Nov 17. PMID: 22100468.

37. Kocher KE, Meurer WJ, Desmond JS, Nallamothu BK. Effect of testing and treatment on emergency department length of stay using a national database. Acad Emerg Med. 2012 May;19(5):525-34. doi: 10.1111/j.1553-2712.2012.01353.x. PMID: 22594356.

38. Ma O, Mateer JR, Blaivas M. Emergency ultrasound. 2nd ed. New York: McGraw-Hill; 2008.

39. Marin JR, Bilker W, Lautenbach E, Alpern ER. Reliability of clinical examinations for pediatric skin and soft-tissue infections. Pediatrics. 2010 Nov;126(5):925-30. doi: 10.1542/peds.2010-1039. Epub 2010 Oct 25. PMID: 20974788; PMCID: PMC3228243.

40. Giovanni JE, Dowd MD, Kennedy C, Michael JG. Interexaminer agreement in physical examination for children with suspected soft tissue abscesses. Pediatr Emerg Care. 2011 Jun;27(6):475-8. doi: 10.1097/PEC.0b013e31821d8545. PMID: 21629150.

41. Friedman DI, Forti RJ, Wall SP, Crain EF. The utility of bedside ultrasound and patient perception in detecting soft tissue foreign bodies in children. Pediatr Emerg Care. 2005 Aug;21(8):487-92. doi: 10.1097/01.pec.0000173344.30401.8e. PMID: 16096591.

42. Costa F, Titolo A, Ferrocino M, Biagi E, Dell'Orto V, Perrone S, Esposito S. Lung Ultrasound in Neonatal Respiratory Distress Syndrome: A Narrative Review of the Last 10 Years. Diagnostics (Basel). 2024 Dec 12;14(24):2793. doi: 10.3390/diagnostics14242793. PMID: 39767155; PMCID: PMC11674376.

43. Ord HL, Griksaitis MJ. Fifteen-minute consultation: Using point of care ultrasound to assess children with respiratory failure. Arch Dis Child Educ Pract Ed. 2019 Feb;104(1):2-10. doi: 10.1136/archdischild-2017-313795. Epub 2018 May 25. PMID: 29802097.

44. Soni NJ, Franco R, Velez MI, Schnobrich D, Dancel R, Restrepo MI, Mayo PH. Ultrasound in the diagnosis and management of pleural effusions. J Hosp Med. 2015 Dec;10(12):811-6. doi: 10.1002/jhm.2434. Epub 2015 Jul 28. PMID: 26218493; PMCID: PMC4715558.

45. Hajalioghli P, Nemati M, Dinparast Saleh L, Fouladi DF. Can Chest Computed Tomography Be Replaced by Lung Ultrasonography With or Without Plain Chest Radiography in Pediatric Pneumonia? J Thorac Imaging. 2016 Jul;31(4):247-52. doi: 10.1097/RTI.0000000000000209. PMID: 27075744.

46. Kurepa D, Zaghloul N, Watkins L, Liu J. Neonatal lung ultrasound exam guidelines. J Perinatol. 2018 Jan;38(1):11-22. doi: 10.1038/jp.2017.140. Epub 2017 Nov 16. PMID: 29144490.

47. Holmes JF, Brant WE, Bogren HG, London KL, Kuppermann N. Prevalence and importance of pneumothoraces visualized on abdominal computed tomographic scan in children with blunt trauma. J Trauma. 2001 Mar;50(3):516-20. doi: 10.1097/00005373-200103000-00017. PMID: 11265032.

48. Blaivas M, Lyon M, Duggal S. A prospective comparison of supine chest radiography and bedside ultrasound for the diagnosis of traumatic pneumothorax. Acad Emerg Med. 2005 Sep;12(9):844-9. doi: 10.1197/j.aem.2005.05.005. PMID: 16141018.

49. Zhang M, Liu ZH, Yang JX, Gan JX, Xu SW, You XD, Jiang GY. Rapid detection of pneumothorax by ultrasonography in patients with multiple trauma. Crit Care. 2006;10(4):R112. doi: 10.1186/cc5004. PMID: 16882338; PMCID: PMC1751015.

50. Vasquez DG, Berg GM, Srour SG, Ali K. Lung ultrasound for detecting pneumothorax in injured children: preliminary experience at a community-based Level II pediatric trauma center. Pediatr Radiol. 2020 Mar;50(3):329-337. doi: 10.1007/s00247-019-04509-y. Epub 2019 Aug 31. PMID: 31473787.

51. Calder BW, Vogel AM, Zhang J, Mauldin PD, Huang EY, Savoie KB, Santore MT, Tsao K, Ostovar-Kermani TG, Falcone RA, Dassinger MS, Recicar J, Haynes JH, Blakely ML, Russell RT, Naik-Mathuria BJ, St Peter SD, Mooney DP, Onwubiko C, Upperman JS, Zagory JA, Streck CJ. Focused assessment with sonography for trauma in children after blunt abdominal trauma: A multi-institutional analysis. J Trauma Acute Care Surg. 2017 Aug;83(2):218-224. doi: 10.1097/TA.0000000000001546. PMID: 28590347.

52. Lichtenstein D, Mezière G, Biderman P, Gepner A. The "lung point": an ultrasound sign specific to pneumothorax. Intensive Care Med. 2000 Oct;26(10):1434-40. doi: 10.1007/s001340000627. PMID: 11126253.

53. Harris M, Clark J, Coote N, Fletcher P, Harnden A, McKean M, Thomson A; British Thoracic Society Standards of Care Committee. British Thoracic Society guidelines for the management of community acquired pneumonia in children: update 2011. Thorax. 2011 Oct;66 Suppl 2:ii1-23. doi: 10.1136/thoraxjnl-2011-200598. PMID: 21903691.

54. Stadler JAM, Andronikou S, Zar HJ. Lung ultrasound for the diagnosis of community-acquired pneumonia in children. Pediatr Radiol. 2017 Oct;47(11):1412-1419. doi: 10.1007/s00247-017-3910-1. Epub 2017 Sep 21. PMID: 29043420; PMCID: PMC5608773.

55. Pereda MA, Chavez MA, Hooper-Miele CC, Gilman RH, Steinhoff MC, Ellington LE, Gross M, Price C, Tielsch JM, Checkley W. Lung ultrasound for the diagnosis of pneumonia in children: a meta-analysis. Pediatrics. 2015 Apr;135(4):714-22. doi: 10.1542/peds.2014-2833. Epub 2015 Mar 16. PMID: 25780071; PMCID: PMC9923609.

56. Shah VP, Tunik MG, Tsung JW; International Evidence-Based Recommendations for Point-of-Care Lung Ultrasound. Crit Ultrasound J. 2020 May 6;12(1):6. doi:10.1186/s13089-020-00177-4. PMID: 32375859; PMCID: PMC7206818.

57. Guerra M, Crichiutti G, Pecile P, Romanello C, Busolini E, Valent F, Rosolen A. Ultrasound detection of pneumonia in febrile children with respiratory distress: a prospective study. Eur J Pediatr. 2016 Feb;175(2):163-70. doi: 10.1007/s00431-015-2611-8. Epub 2015 Aug 19. PMID: 26283293.

58. Shah VP, Tunik MG, Tsung JW. Prospective evaluation of point-of-care ultrasonography for the diagnosis of pneumonia in children and young adults. JAMA Pediatr. 2013 Feb;167(2):119-25. doi: 10.1001/2013.jamapediatrics.107. PMID: 23229753.

59. Ianniello S, Piccolo CL, Buquicchio GL, Trinci M, Miele V. First-line diagnosis of paediatric pneumonia in emergency: lung ultrasound (LUS) in addition to chest-X-ray (CXR) and its role in follow-up. Br J Radiol. 2016;89(1061):20150998. doi: 10.1259/bjr.20150998. Epub 2016 Jan 22. PMID: 26689098; PMCID: PMC4985480.

60. San Sebastian Ruiz N, Rodríguez Albarrán I, Gorostiza I, Galletebeitia Laka I, Delgado Lejonagoitia C, Samson F. Point-of-care lung ultrasound in children with bronchiolitis in a pediatric emergency department. Arch Pediatr. 2021 Jan;28(1):64-68. doi: 10.1016/j.arcped.2020.10.003. Epub 2020 Nov 6. PMID: 33162325.

61. Supino MC, Buonsenso D, Scateni S, Scialanga B, Mesturino MA, Bock C, Chiaretti A, Giglioni E, Reale A, Musolino AM. Point-of-care lung ultrasound in infants with bronchiolitis in the pediatric emergency department: a prospective study. Eur J Pediatr. 2019 May;178(5):623-632. doi: 10.1007/s00431-019-03335-6. Epub 2019 Feb 12. PMID: 30747262.

62. Kennedy TM, Malia L, Dessie A, Kessler DO, Ng L, Chiang EL, Rabiner JE. Lung Point-of-Care Ultrasound in Pediatric COVID-19: A Case Series. Pediatr Emerg Care. 2020 Nov;36(11):544-548. doi: 10.1097/PEC.0000000000002254. PMID: 32925701; PMCID: PMC7497604.

63. Potter SK, Griksaitis MJ. The role of point-of-care ultrasound in pediatric acute respiratory distress syndrome: emerging evidence for its use. Ann Transl Med. 2019 Oct;7(19):507. doi: 10.21037/atm.2019.07.76. PMID: 31728360; PMCID: PMC6828795.

64. Liu J, Chen SW, Liu F, Wang Y, Kong XY, Li QP, Huang JJ. BPD, Not BPD, or iatrogenic BPD: findings of lung ultrasound examinations. Medicine (Baltimore). 2014 Nov;93(23):e133. doi: 10.1097/MD.0000000000000133. PMID: 25415666; PMCID: PMC4616337.

65. American College of Emergency Physicians. Ultrasound guidelines: emergency, point-of-care, and clinical ultrasound guidelines in medicine. Policy statement. 2016 Jun.

66. Sivitz AB, Cohen SG, Tejani C. Evaluation of acute appendicitis by pediatric emergency physician sonography. Ann Emerg Med. 2014 Oct;64(4):358-364.e4. doi: 10.1016/j.annemergmed.2014.03.028. Epub 2014 May 29. PMID: 24882665.

67. Elikashvili I, Tay ET, Tsung JW. The effect of point-of-care ultrasonography on emergency department length of stay and computed tomography utilization in children with suspected appendicitis. Acad Emerg Med. 2014 Feb;21(2):163-70. doi: 10.1111/acem.12319. PMID: 24673672.

68. Halm BM, Eakin PJ, Franke AA. Diagnosis of appendicitis by a pediatric emergency medicine attending using Point-of-Care Ultrasound/ a case report. Hawaii Med J. 2010 Sep;69(9):208-11. PMID: 20848383; PMCID: PMC3071208.

69. Ravichandran Y, Harrison P, Garrow E, Chao JH. Size Matters: Point-of-Care Ultrasound in Pediatric Appendicitis. Pediatr Emerg Care. 2016 Nov;32(11):815-816. doi: 10.1097/PEC.0000000000000690. PMID: 26945193.

70. Rosen MP, Ding A, Blake MA, Baker ME, Cash BD, Fidler JL, Grant TH, Greene FL, Jones B, Katz DS, Lalani T, Miller FH, Small WC, Spottswood S, Sudakoff GS, Tulchinsky M, Warshauer DM, Yee J, Coley BD. ACR Appropriateness Criteria® right lower quadrant pain--suspected appendicitis. J Am Coll Radiol. 2011 Nov;8(11):749-55. doi: 10.1016/j.jacr.2011.07.010. PMID: 22051456.

71. Doniger SJ, Kornblith A. Point-of-Care Ultrasound Integrated Into a Staged Diagnostic Algorithm for Pediatric Appendicitis. Pediatr Emerg Care. 2018 Feb;34(2):109-115. doi: 10.1097/PEC.0000000000000773. PMID: 27299296.

72. Benabbas R, Hanna M, Shah J, Sinert R. Diagnostic Accuracy of History, Physical Examination, Laboratory Tests, and Point-of-care Ultrasound for Pediatric Acute Appendicitis in the Emergency Department: A Systematic Review and Meta-analysis. Acad Emerg Med. 2017 May;24(5):523-551. doi: 10.1111/acem.13181. PMID: 28214369.

73. Goldin AB, Khanna P, Thapa M, McBroom JA, Garrison MM, Parisi MT. Revised ultrasound criteria for appendicitis in children improve diagnostic accuracy. Pediatr Radiol. 2011 Aug;41(8):993-9. doi: 10.1007/s00247-011-2018-2. Epub 2011 Mar 16. PMID: 21409546.

74. Waseem M, Rosenberg HK. Intussusception. Pediatr Emerg Care. 2008 Nov;24(11):793-800. doi: 10.1097/PEC.0b013e31818c2a3e. PMID: 19018227.

75. Edwards EA, Pigg N, Courtier J, Zapala MA, MacKenzie JD, Phelps AS. Intussusception: past, present and future. Pediatr Radiol. 2017 Aug;47(9):1101-1108. doi: 10.1007/s00247-017-3878-x. Epub 2017 Aug 4. PMID: 28779197.

76. Lin-Martore M, Kornblith AE, Kohn MA, Gottlieb M. Diagnostic Accuracy of Point-of-Care Ultrasound for Intussusception in Children Presenting to the Emergency Department: A Systematic Review and Meta-analysis. West J Emerg Med. 2020 Jul 2;21(4):1008-1016. doi: 10.5811/westjem.2020.4.46241. PMID: 32726276; PMCID: PMC7390574.

77. Hsiao HJ, Wang CJ, Lee CC, Hsin YC, Yau SY, Chen SY, Lo WC, Wu PW, Chen CL, Chang YJ. Point-of-Care Ultrasound May Reduce Misdiagnosis of Pediatric Intussusception. Front Pediatr. 2021 Feb 4;9:601492. doi: 10.3389/fped.2021.601492. PMID: 33614550; PMCID: PMC7889804.

78. Li XZ, Wang H, Song J, Liu Y, Lin YQ, Sun ZX. Ultrasonographic Diagnosis of Intussusception in Children: A Systematic Review and Meta-Analysis. J Ultrasound Med. 2021 Jun;40(6):1077-1084. doi: 10.1002/jum.15504. Epub 2020 Sep 16. PMID: 32936473.

79. del-Pozo G, González-Spinola J, Gómez-Ansón B, Serrano C, Miralles M, González-deOrbe G, Cano I, Martínez A. Intussusception: trapped peritoneal fluid detected with US--relationship to reducibility and ischemia. Radiology. 1996 Nov;201(2):379-83. doi: 10.1148/radiology.201.2.8888227. PMID: 8888227.

80. Hryhorczuk AL, Strouse PJ. Validation of US as a first-line diagnostic test for assessment of pediatric ileocolic intussusception. Pediatr Radiol. 2009 Oct;39(10):1075-9. doi: 10.1007/s00247-009-1353-z. Epub 2009 Aug 6. PMID: 19657636.

81. Kong MS, Wong HF, Lin SL, Chung JL, Lin JN. Factors related to detection of blood flow by color Doppler ultrasonography in intussusception. J Ultrasound Med. 1997 Feb;16(2):141-4. doi: 10.7863/jum.1997.16.2.141. PMID: 9166807.

82. Weihmiller SN, Buonomo C, Bachur R. Risk stratification of children being evaluated for intussusception. Pediatrics. 2011 Feb;127(2):e296-303. doi: 10.1542/peds.2010-2432. Epub 2011 Jan 17. PMID: 21242220.

83. Kuppermann N, O'Dea T, Pinckney L, Hoecker C. Predictors of intussusception in young children. Arch Pediatr Adolesc Med. 2000 Mar;154(3):250-5. doi: 10.1001/archpedi.154.3.250. PMID: 10710022.

84. Sivitz AB, Tejani C, Cohen SG. Evaluation of hypertrophic pyloric stenosis by pediatric emergency physician sonography. Acad Emerg Med. 2013 Jul;20(7):646-51. doi: 10.1111/acem.12163. Epub 2013 Jun 19. PMID: 23781883.

85. Park JS, Byun YH, Choi SJ, Lee JS, Ryu JM, Lee JY. Feasibility of Point-of-Care Ultrasound for Diagnosing Hypertrophic Pyloric Stenosis in the Emergency Department. Pediatr Emerg Care. 2021 Nov 1;37(11):550-554. doi: 10.1097/PEC.0000000000002532. PMID: 34550920; PMCID: PMC8575169.

86. Leaphart CL, Borland K, Kane TD, Hackam DJ. Hypertrophic pyloric stenosis in newborns younger than 21 days: remodeling the path of surgical intervention. J Pediatr Surg. 2008 Jun;43(6):998-1001. doi: 10.1016/j.jpedsurg.2008.02.022. PMID: 18558172.

87. Hernanz-Schulman M. Infantile hypertrophic pyloric stenosis. Radiology. 2003 May;227(2):319-31. doi: 10.1148/radiol.2272011329. Epub 2003 Mar 13. PMID: 12637675.

88. Demian M, Nguyen S, Emil S. Early pyloric stenosis: a case control study. Pediatr Surg Int. 2009 Dec;25(12):1053-7. doi: 10.1007/s00383-009-2463-2. PMID: 19697044; PMCID: PMC2777228.

89. Marin JR, Abo AM, Arroyo AC, Doniger SJ, Fischer JW, Rempell R, Gary B, Holmes JF, Kessler DO, Lam SH, Levine MC, Levy JA, Murray A, Ng L, Noble VE, Ramirez-Schrempp D, Riley DC, Saul T, Shah V, Sivitz AB, Tay ET, Teng D, Chaudoin L, Tsung JW, Vieira RL, Vitberg YM, Lewiss RE. Pediatric emergency medicine point-of-care ultrasound: summary of the evidence. Crit Ultrasound J. 2016 Dec;8(1):16. doi:10.1186/s13089-016-0049-5. Epub 2016 Nov 3. Erratum in: Crit Ultrasound J. 2017 Dec;9(1):3.

90. Bailey PV, Connors RH, Tracy TF Jr, Sotelo-Avila C, Lewis JE, Weber TR. Changing spectrum of cholelithiasis and cholecystitis in infants and children. Am J Surg. 1989 Dec;158(6):585-8. doi: 10.1016/0002-9610(89)90199-2. PMID: 2511775.

91. van Rijn RR, Nievelstein RA. Paediatric ultrasonography of the liver, hepatobiliary tract and pancreas. Eur J Radiol. 2014 Sep;83(9):1570-81. doi: 10.1016/j.ejrad.2014.03.025. Epub 2014 Apr 8. PMID: 24780818.

92. Tsung JW, Raio CC, Ramirez-Schrempp D, Blaivas M. Point-of-care ultrasound diagnosis of pediatric cholecystitis in the ED. Am J Emerg Med. 2010 Mar;28(3):338-42. doi: 10.1016/j.ajem.2008.12.003. Epub 2010 Jan 28. PMID: 20223393.

93. Della Corte C, Falchetti D, Nebbia G, Calacoci M, Pastore M, Francavilla R, Marcellini M, Vajro P, Iorio R. Management of cholelithiasis in Italian children: a national multicenter study. World J Gastroenterol. 2008 Mar 7;14(9):1383-8. doi: 10.3748/wjg.14.1383. PMID: 18322952; PMCID: PMC2693686.

94. Weinberg ER, Tunik MG, Tsung JW. Accuracy of clinician-performed point-of-care ultrasound for the diagnosis of fractures in children and young adults. Injury. 2010 Aug;41(8):862-8. doi: 10.1016/j.injury.2010.04.020. Epub 2010 May 13. PMID: 20466368.

95. Barata I, Spencer R, Suppiah A, Raio C, Ward MF, Sama A. Emergency ultrasound in the detection of pediatric long-bone fractures. Pediatr Emerg Care. 2012 Nov;28(11):1154-7. doi: 10.1097/PEC.0b013e3182716fb7. PMID: 23114237.

96. Patel DD, Blumberg SM, Crain EF. The utility of bedside ultrasonography in identifying fractures and guiding fracture reduction in children. Pediatr Emerg Care. 2009 Apr;25(4):221-25. doi: 10.1097/pec.0b013e31819e34f7. PMID: 19382318.

97. Chen L, Kim Y, Moore CL. Diagnosis and guided reduction of forearm fractures in children using bedside ultrasound. Pediatr Emerg Care. 2007 Aug;23(8):528-31. doi: 10.1097/PEC.0b013e318128f85d. PMID: 17726410.

98. Dubrovsky AS, Kempinska A, Bank I, Mok E. Accuracy of ultrasonography for determining successful realignment of pediatric forearm fractures. Ann Emerg Med. 2015 Mar;65(3):260-5. doi: 10.1016/j.annemergmed.2014.08.043. Epub 2014 Oct 16. PMID: 25441249.

99. Hübner U, Schlicht W, Outzen S, Barthel M, Halsband H. Ultrasound in the diagnosis of fractures in children. J Bone Joint Surg Br. 2000 Nov;82(8):1170-3. doi: 10.1302/0301-620x.82b8.10087. PMID: 11132281.

100. Neri E, Barbi E, Rabach I, Zanchi C, Norbedo S, Ronfani L, Guastalla V, Ventura A, Guastalla P. Diagnostic accuracy of ultrasonography for hand bony fractures in paediatric patients. Arch Dis Child. 2014 Dec;99(12):1087-90. doi: 10.1136/archdischild-2013-305678. Epub 2014 Jun 20. PMID: 24951462.

101. Poonai N, Myslik F, Joubert G, Fan J, Misir A, Istasy V, Columbus M, Soegtrop R, Goldfarb A, Thompson D, Dubrovsky AS. Point-of-care Ultrasound for Nonangulated Distal Forearm Fractures in Children: Test Performance Characteristics and Patient-centered Outcomes. Acad Emerg Med. 2017 May;24(5):607-616. doi: 10.1111/acem.13146. Epub 2017 Apr 27. PMID: 27976448.

102. Chaar-Alvarez FM, Warkentine F, Cross K, Herr S, Paul RI. Bedside ultrasound diagnosis of nonangulated distal forearm fractures in the pediatric emergency department. Pediatr Emerg Care. 2011 Nov;27(11):1027-32. doi: 10.1097/PEC.0b013e318235e228. PMID: 22068062.

103. Williamson D, Watura R, Cobby M. Ultrasound imaging of forearm fractures in children: a viable alternative? J Accid Emerg Med. 2000 Jan;17(1):22-4. doi: 10.1136/emj.17.1.22. PMID: 10658986; PMCID: PMC1756269.

104. Rabiner JE, Khine H, Avner JR, Friedman LM, Tsung JW. Accuracy of point-of-care ultrasonography for diagnosis of elbow fractures in children. Ann Emerg Med. 2013 Jan;61(1):9-17. doi: 10.1016/j.annemergmed.2012.07.112. Epub 2012 Nov 9. PMID: 23142008.

105. Ekşioğlu F, Altinok D, Uslu MM, Güdemez E. Ultrasonographic findings in pediatric fractures. Turk J Pediatr. 2003 Apr-Jun;45(2):136-40. PMID: 12921301.

106. Warkentine FH, Horowitz R, Pierce MC. The use of ultrasound to detect occult or unsuspected fractures in child abuse. Pediatr Emerg Care. 2014 Jan;30(1):43-6. doi: 10.1097/PEC.0000000000000064. PMID: 24378861.

107. Tessaro MO, McGovern TR, Dickman E, Haines LE. Point-of-care ultrasound detection of acute scaphoid fracture. Pediatr Emerg Care. 2015 Mar;31(3):222-4. doi: 10.1097/PEC.0000000000000385. PMID: 25738245.

108. Ramirez-Schrempp D, Vinci RJ, Liteplo AS. Bedside ultrasound in the diagnosis of skull fractures in the pediatric emergency department. Pediatr Emerg Care. 2011 Apr;27(4):312-4. doi: 10.1097/PEC.0b013e3182131579. PMID: 21467882.

109. Cross KP, Warkentine FH, Kim IK, Gracely E, Paul RI. Bedside ultrasound diagnosis of clavicle fractures in the pediatric emergency department. Acad Emerg Med. 2010 Jul;17(7):687-93. doi: 10.1111/j.1553-2712.2010.00788.x. PMID: 20653581.

110. Chien M, Bulloch B, Garcia-Filion P, Youssfi M, Shrader MW, Segal LS. Bedside ultrasound in the diagnosis of pediatric clavicle fractures. Pediatr Emerg Care. 2011 Nov;27(11):1038-41. doi: 10.1097/PEC.0b013e318235e965. PMID: 22068064.

111. Snelling PJ, Keijzers G, Byrnes J, Bade D, George S, Moore M, Jones P, Davison M, Roan R, Ware RS. Bedside Ultrasound Conducted in Kids with distal upper Limb fractures in the Emergency Department (BUCKLED): a protocol for an open-label non-inferiority diagnostic randomised controlled trial. Trials. 2021 Apr 14;22(1):282. doi: 10.1186/s13063-021-05239-z. PMID: 33853650; PMCID: PMC8048294.

112. Garrison J, Nguyen M, Marin JR. Emergency Department Point-of-Care Hip Ultrasound and Its Role in the Diagnosis of Septic Hip Arthritis: A Case Report. Pediatr Emerg Care. 2016 Aug;32(8):555-7. doi: 10.1097/PEC.0000000000000874. PMID: 27490732.

113. Deanehan J, Gallagher R, Vieira R, Levy J. Bedside hip ultrasonography in the pediatric emergency department: a tool to guide management in patients presenting with limp. Pediatr Emerg Care. 2014 Apr;30(4):285-7. doi: 10.1097/PEC.0000000000000113. PMID: 24694889.

114. Hashimoto BE, Kramer DJ, Wiitala L. Applications of musculoskeletal sonography. J Clin Ultrasound. 1999 Jul-Aug;27(6):293-318. doi: 10.1002/(sici)1097-0096(199907/08)27:6<293::aid-jcu1>3.0.co;2-c. PMID: 10395126.

115. Vieira RL, Levy JA. Bedside ultrasonography to identify hip effusions in pediatric patients. Ann Emerg Med. 2010 Mar;55(3):284-9. doi: 10.1016/j.annemergmed.2009.06.527. Epub 2009 Aug 20. PMID: 19695738.

116. Rabiner JE, Khine H, Avner JR, Tsung JW. Ultrasound findings of the elbow posterior fat pad in children with radial head subluxation. Pediatr Emerg Care. 2015 May;31(5):327-30. doi: 10.1097/PEC.0000000000000420. PMID: 25875991.

117. Yabunaka K, Ohue M, Morimoto N, Kitano N, Shinohara K, Takamura M, Gotanda T, Sanada S. Sonographic measurement of transient synovitis in children: diagnostic value of joint effusion. Radiol Phys Technol. 2012 Jan;5(1):15-9. doi: 10.1007/s12194-011-0128-z. Epub 2011 Jul 12. PMID: 21748477.

118. Ng C, Tsung JW. Avoiding Computed Tomography Scans By Using Point-Of-Care Ultrasound When Evaluating Suspected Pediatric Renal Colic. J Emerg Med. 2015 Aug;49(2):165-71. doi: 10.1016/j.jemermed.2015.01.017. Epub 2015 Apr 29. PMID: 25934378.

119. Smith-Bindman R, Aubin C, Bailitz J, Bengiamin RN, Camargo CA Jr, Corbo J, Dean AJ, Goldstein RB, Griffey RT, Jay GD, Kang TL, Kriesel DR, Ma OJ, Mallin M, Manson W, Melnikow J, Miglioretti DL, Miller SK, Mills LD, Miner JR, Moghadassi M, Noble VE, Press GM, Stoller ML, Valencia VE, Wang J, Wang RC, Cummings SR. Ultrasonography versus computed tomography for suspected nephrolithiasis. N Engl J Med. 2014 Sep 18;371(12):1100-10. doi: 10.1056/NEJMoa1404446. PMID: 25229916.

120. Guedj R, Escoda S, Blakime P, Patteau G, Brunelle F, Cheron G. The accuracy of renal point of care ultrasound to detect hydronephrosis in children with a urinary tract infection. Eur J Emerg Med. 2015 Apr;22(2):135-8. doi: 10.1097/MEJ.0000000000000158. PMID: 24858915.

121. Vallone G, Napolitano G, Fonio P, Antinolfi G, Romeo A, Macarini L, Genovese EA, Brunese L. US detection of renal and ureteral calculi in patients with suspected renal colic. Crit Ultrasound J. 2013 Jul 15;5 Suppl 1(Suppl 1):S3. doi: 10.1186/2036-7902-5-S1-S3. Epub 2013 Jul 15. PMID: 23902730; PMCID: PMC3711724.

122. Kalfa N, Veyrac C, Lopez M, Lopez C, Maurel A, Kaselas C, Sibai S, Arena F, Vaos G, Bréaud J, Merrot T, Kalfa D, Khochman I, Mironescu A, Minaev S, Avérous M, Galifer RB. Multicenter assessment of ultrasound of the spermatic cord in children with acute scrotum. J Urol. 2007 Jan;177(1):297-301; discussion 301. doi: 10.1016/j.juro.2006.08.128. PMID: 17162068.

123. Friedman N, Pancer Z, Savic R, Tseng F, Lee MS, Mclean L, Bagli DJ, Tessaro MO. Accuracy of point-of-care ultrasound by pediatric emergency physicians for testicular torsion. J Pediatr Urol. 2019 Dec;15(6):608.e1-608.e6. doi: 10.1016/j.jpurol.2019.07.003. Epub 2019 Jul 12. PMID: 31455581.

124. Lam WW, Yap TL, Jacobsen AS, Teo HJ. Colour Doppler ultrasonography replacing surgical exploration for acute scrotum: myth or reality? Pediatr Radiol. 2005 Jun;35(6):597-600. doi: 10.1007/s00247-005-1411-0. Epub 2005 Mar 11. PMID: 15761770.

125. Fodor D, Badea AF, Petrescu IO, Jianu AM, Iacob D, Jinga V. Accuracy of point-of-care ultrasound for diagnosing testicular torsion in children: a systematic review and meta-analysis. Emerg Med J. 2023 Feb;40(2):81–87. doi:10.1136/emermed-2021-212281. PMID: 36302681.

126. Mori T, Ihara T, Nomura O. Diagnostic accuracy of point-of-care ultrasound for paediatric testicular torsion: a systematic review and meta-analysis. Emerg Med J. 2023 Feb;40(2):140-146. doi: 10.1136/emermed-2021-212281. Epub 2022 May 6. PMID: 35523539.

127. Blaivas M. Bedside emergency department ultrasonography in the evaluation of ocular pathology. Acad Emerg Med. 2000 Aug;7(8):947-50. doi: 10.1111/j.1553-2712.2000.tb02080.x. PMID: 10958141.

128. Vrablik ME, Snead GR, Minnigan HJ, Kirschner JM, Emmett TW, Seupaul RA. The diagnostic accuracy of bedside ocular ultrasonography for the diagnosis of retinal detachment: a systematic review and meta-analysis. Ann Emerg Med. 2015 Feb;65(2):199-203.e1. doi: 10.1016/j.annemergmed.2014.02.020. Epub 2014 Mar 27. PMID: 24680547.

129. Shinar Z, Chan L, Orlinsky M. Use of ocular ultrasound for the evaluation of retinal detachment. J Emerg Med. 2011 Jan;40(1):53-7. doi: 10.1016/j.jemermed.2009.06.001. Epub 2009 Jul 21. PMID: 19625159.

130. Yoonessi R, Hussain A, Jang TB. Bedside ocular ultrasound for the detection of retinal detachment in the emergency department. Acad Emerg Med. 2010 Sep;17(9):913-7. doi: 10.1111/j.1553-2712.2010.00809.x. PMID: 20836770.

131. Buzzard AK, Linklater DR. Pediatric retinal detachment due to Coats' disease diagnosed with bedside emergency department ultrasound. J Emerg Med. 2009 Nov;37(4):390-2. doi: 10.1016/j.jemermed.2007.09.027. Epub 2008 Jan 28. PMID: 18226872.

132. Lahham S, Shniter I, Thompson M, Le D, Chadha T, Mailhot T, Kang TL, Chiem A, Tseeng S, Fox JC. Point-of-Care Ultrasonography in the Diagnosis of Retinal Detachment, Vitreous Hemorrhage, and Vitreous Detachment in the Emergency Department. JAMA Netw Open. 2019 Apr 5;2(4):e192162. doi: 10.1001/jamanetworkopen.2019.2162. PMID: 30977855; PMCID: PMC6481597.

133. Bates A, Goett HJ. Ocular Ultrasound. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 [citato 14 settembre 2022].

134. Propst SL, Kirschner JM, Strachan CC, Roumpf SK, Menard LM, Sarmiento EJ, Hunter BR. Ocular Point-of-Care Ultrasonography to Diagnose Posterior Chamber Abnormalities: A Systematic Review and Meta-analysis. JAMA Netw Open. 2020 Feb 5;3(2):e1921460. doi: 10.1001/jamanetworkopen.2019.21460. PMID: 32074291.

135. Körber F, Scharf M, Moritz J, Dralle D, Alzen G. [Sonography of the optic nerve: experience in 483 children]. Rofo. 2005 Feb;177(2):229-35.

136. Newman WD, Hollman AS, Dutton GN, Carachi R. Measurement of optic nerve sheath diameter by ultrasound: a means of detecting acute raised intracranial pressure in hydrocephalus. Br J Ophthalmol. 2002 Oct;86(10):1109-13. doi: 10.1136/bjo.86.10.1109. PMID: 12234888; PMCID: PMC1771326.

137. Driessen C, Bannink N, Lequin M, van Veelen ML, Naus NC, Joosten KF, Mathijssen IM. Are ultrasonography measurements of optic nerve sheath diameter an alternative to funduscopy in children with syndromic craniosynostosis? J Neurosurg Pediatr. 2011 Sep;8(3):329-34. doi: 10.3171/2011.6.PEDS10547. PMID: 21882928.

138. Le A, Hoehn ME, Smith ME, Spentzas T, Schlappy D, Pershad J. Bedside sonographic measurement of optic nerve sheath diameter as a predictor of increased intracranial pressure in children. Ann Emerg Med. 2009 Jun;53(6):785-91. doi: 10.1016/j.annemergmed.2008.11.025. Epub 2009 Jan 23. PMID: 19167786.

139. Kars MS, Gomez Morad A, Haskins SC, Boublik J, Boretsky K. Point-of-care ultrasound for the pediatric regional anesthesiologist and pain specialist: a technique review. Reg Anesth Pain Med. 2020 Dec;45(12):985-992. doi: 10.1136/rapm-2020-101341. Epub 2020 Sep 14. PMID: 32928993.

140. Merali HS, Tessaro MO, Ali KQ, Morris SK, Soofi SB, Ariff S. A novel training simulator for portable ultrasound identification of incorrect newborn endotracheal tube placement - observational diagnostic accuracy study protocol. BMC Pediatr. 2019 Nov 13;19(1):434. doi: 10.1186/s12887-019-1717-y. PMID: 31722685; PMCID: PMC6852924.

141. O'Shea JE, Loganathan P, Thio M, Kamlin COF, Davis PG. Analysis of unsuccessful intubations in neonates using videolaryngoscopy recordings. Arch Dis Child Fetal Neonatal Ed. 2018 Sep;103(5):F408-F412. doi: 10.1136/archdischild-2017-313628. Epub 2017 Nov 10. PMID: 29127153.

142. Sharma D, Tabatabaii SA, Farahbakhsh N. Role of ultrasound in confirmation of endotracheal tube in neonates: a review. J Matern Fetal Neonatal Med. 2019 Apr;32(8):1359-1367. doi: 10.1080/14767058.2017.1403581. Epub 2017 Nov 22. PMID: 29117819.

143. Ali KQ, Soofi SB, Hussain AS, Ansari U, Morris S, Tessaro MO, Ariff S, Merali H. Simulator-based ultrasound training for identification of endotracheal tube placement in a neonatal intensive care unit using point of care ultrasound. BMC Med Educ. 2020 Nov 7;20(1):409. doi: 10.1186/s12909-020-02338-4. PMID: 33160342; PMCID: PMC7648944.

144. Acar Y, Tezel O, Salman N, Cevik E, Algaba-Montes M, Oviedo-García A, Patricio-Bordomás M, Mahmoud MZ, Sulieman A, Ali A, Mustafa A, Abdelrahman I, Bahar M, Ali O, Lester Kirchner H, Prosen G, Anzic A, Leeson P, Bahreini M, Rasooli F, Hosseinnejad H, Blecher G, Meek R, Egerton-Warburton D, Ćuti EĆ, Belina S, Vančina T, Kovačević I, Rustemović N, Chang I, Lee JH, Kwak YH, Kim do K, Cheng CY, Pan HY, Kung CT, Ćurčić E, Pritišanac E, Planinc I, Medić MG, Radonić R, Fasina A, Dean AJ, Panebianco NL, Henwood PS, Fochi O, Favarato M, Bonanomi E, Tomić I, Ha Y, Toh H, Harmon E, Chan W, Baston C, Morrison G, Shofer F, Hua A, Kim S, Tsung J, Gunaydin I, Kekec Z, Ay MO, Kim J, Kim J, Choi G, Shim D, Lee JH, Ambrozic J, Prokselj K, Lucovnik M, Simenc GB, Mačiulienė A, Maleckas A, Kriščiukaitis A, Mačiulis V, Macas A, Mohite S, Narancsik Z, Možina H, Nikolić S, Hansel J, Petrovčič R, Mršić U, Orlob S, Lerchbaumer M, Schönegger N, Kaufmann R, Pan CI, Wu CH, Pasquale S, Doniger SJ, Yellin S, Chiricolo G, Potisek M, Drnovšek B, Leskovar B, Robinson K, Kraft C, Moser B, Davis S, Layman S, Sayeed Y, Minardi J, Pasic IS, Dzananovic A, Pasic A, Zubovic SV, Hauptman AG, Brajkovic AV, Babel J, Peklic M, Radonic V, Bielen L, Ming PW, Yezid NH, Mohammed FL, Huda ZA, Ismail WN, Isa WY, Fauzi H, Seeva P, Mazlan MZ. 12th WINFOCUS world congress on ultrasound in emergency and critical care. Crit Ultrasound J. 2016 Sep;8(Suppl 1):12. doi: 10.1186/s13089-016-0046-8. Erratum in: Crit Ultrasound J. 2016 Dec;8(1):13. doi: 10.1186/s13089-016-0050-z. PMID: 27604617; PMCID: PMC5014769.

145. Doniger SJ, Ishimine P, Fox JC, Kanegaye JT. Randomized controlled trial of ultrasound-guided peripheral intravenous catheter placement versus traditional techniques in difficult-access pediatric patients. Pediatr Emerg Care. 2009 Mar;25(3):154-9. doi: 10.1097/PEC.0b013e31819a8946. PMID: 19262420.

146. Boniface K, Pyle M, Jaleesah N, Shokoohi H. Point-of-Care Ultrasound for the Detection of Hip Effusion and Septic Arthritis in Adult Patients With Hip Pain and Negative Initial Imaging. J Emerg Med. 2020 Apr;58(4):627-631. doi: 10.1016/j.jemermed.2019.11.036. Epub 2020 Jan 22. PMID: 31982198.

147. Tsung JW, Blaivas M. Emergency department diagnosis of pediatric hip effusion and guided arthrocentesis using point-of-care ultrasound. J Emerg Med. 2008 Nov;35(4):393-9. doi: 10.1016/j.jemermed.2007.10.054. Epub 2008 Apr 10. PMID: 18403170.

148. Scheier E, Levick N, Ujirauli N, Raviv O, Balla U. Point-of-Care Ultrasound-Guided Drainage of Joint Effusions in the Pediatric Emergency Setting: A Case Series. J Ultrasound Med. 2022 May;41(5):1285-1293. doi: 10.1002/jum.15795. Epub 2021 Jul 28. PMID: 34318953.

149. Mahdipour S, Saadat SNS, Badeli H, Rad AH. Strengthening the success rate of suprapubic aspiration in infants by integrating point-of-care ultrasonography guidance: A parallel-randomized clinical trial. PLoS One. 2021 Jul 15;16(7):e0254703. doi: 10.1371/journal.pone.0254703. PMID: 34265015; PMCID: PMC8282064.

150. Shavit I, Brant R, Waisman Y. The use of bedside bladder ultrasound to improve the success rate of suprapubic aspiration: a randomized controlled trial. Ann Emerg Med. 2010;56(2):145–150. doi:10.1016/j.annemergmed.2010.01.010.

151. Gochman RF, Karasic RB, Heller MB. Use of portable ultrasonography to assist urine collection by suprapubic aspiration. Ann Emerg Med. 1991;20(6):631–635. doi:10.1016/s0196-0644(05)81605-7.

152. Kumar M, Sreenivas V, Singh P. Point-of-care ultrasonography-guided suprapubic aspiration for urine collection in neonates: a randomized controlled trial. Arch Dis Child Fetal Neonatal Ed. 2020;105(3):254–258. doi:10.1136/archdischild-2019-316993.

153. Kim DJ, Theoret J, Liao MM, Kendall JL. Experience, Training, and Confidence in Point-of-Care Ultrasound: A Cross-Sectional Survey of Emergency Physicians in Canada. J Emerg Med. 2020 Dec;59(6):880–887. doi:10.1016/j.jemermed.2020.09.045. PMID: 33139055.

154. Smith A, Jones B, Patel K, Lee J. Cost-effectiveness and workflow impact of point-of-care ultrasound in emergency medicine: a systematic review. Emerg Radiol. 2023 Aug;30(4):567–579. doi:10.1007/s10140-023-02123-y. PMID: 37428626.