Rachel Liu, BAO, MBBCh, FACEP, MD, FAIUM
Professor of Emergency MedicineCards
About
Research
Publications
2026
Considerations for Pre-deployment Planning in Point-of-Care Ultrasound Program Implementation: A HIMSS-SIIM Enterprise Imaging Community Whitepaper in Collaboration with AIUM
Bottemiller A, Ferre R, Folio L, Toland M, Boyd J, Piro K, Kielski A, French T, Abo A, Bazinet S, Boardwine B, Brown J, Cohen G, Eid M, Fernandez F, Francavilla M, Koehler J, Liu R, Mifajt R, Nolan J, Ma I. Considerations for Pre-deployment Planning in Point-of-Care Ultrasound Program Implementation: A HIMSS-SIIM Enterprise Imaging Community Whitepaper in Collaboration with AIUM. Journal Of Imaging Informatics In Medicine 2026, 1-20. PMID: 42315699, DOI: 10.1007/s10278-026-02021-y.Peer-Reviewed Original ResearchPre-deployment phaseSupply chain operationsWorkflow management softwareImaging informaticsImaging workflowDeployment strategyReal-time diagnostic capabilityInformation technologyBusiness case developmentChain operationsTechnological domainsProgram implementationManagement softwareGo-liveWorkflowCase developmentPre-deployment planningClinical specialtiesPOCUSInfection preventionCybersecurityProgram successImplementationComplex integration processPoint-of-care
2025
Troubleshooting Foley Catheter Problems Using Point-of-Care Ultrasound
Boivin Z, Li J, Gottlieb M, Liu R. Troubleshooting Foley Catheter Problems Using Point-of-Care Ultrasound. Journal Of Emergency Medicine 2025, 78: 12-18. PMID: 40945391, DOI: 10.1016/j.jemermed.2025.07.049.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsPoint-of-care ultrasoundEmergency departmentCatheter problemsFoley catheterFoley catheter placementBalloon malfunctionDifferential diagnosisFoley balloonUrine drainagePoint-of-careFoley catheter drainagePotential diagnosisBladder scannerFoleyCatheter drainageCatheter placementDistended bladderSaline flushCatheter manipulationCatheterInterventionHematuriaPatientsBladderBlood clotsEmerging Applications in Point-of-Care Ultrasound
Oh L, Kirkpatrick A, Liu R. Emerging Applications in Point-of-Care Ultrasound. 2025, 595-603. DOI: 10.1007/978-3-031-85308-1_29.Peer-Reviewed Original ResearchUltrasound Equipment and Purchase
Schoeneck J, Liu R. Ultrasound Equipment and Purchase. 2025, 175-199. DOI: 10.1007/978-3-031-86341-7_14.Peer-Reviewed Original ResearchThe authors respond to reader comment regarding “accuracy of point-of-care ultrasound in diagnosing retained products of conception”
Boivin Z, Li J, Liu R, Moore C. The authors respond to reader comment regarding “accuracy of point-of-care ultrasound in diagnosing retained products of conception”. The American Journal Of Emergency Medicine 2025, 95: 253. PMID: 40518347, DOI: 10.1016/j.ajem.2025.06.028.Commentaries, Editorials and LettersWoman With Flank Pain
Boivin Z, Liu R. Woman With Flank Pain. Annals Of Emergency Medicine 2025, 85: 564-565. PMID: 40404219, DOI: 10.1016/j.annemergmed.2025.01.001.Peer-Reviewed Case Reports and Technical NotesDiagnosis of Cardiac Transplant Rejection Using Point-of-Care Ultrasound
Li J, Boivin Z, Boyer W, Liu R. Diagnosis of Cardiac Transplant Rejection Using Point-of-Care Ultrasound. Journal Of Emergency Medicine 2025, 79: 16-20. PMID: 41076789, DOI: 10.1016/j.jemermed.2025.04.011.Peer-Reviewed Case Reports and Technical NotesPoint-of-care ultrasoundAcute cellular rejectionCellular rejectionEmergency departmentRight ventricular (RV) dilatationDiagnosis of transplant rejectionYear post cardiac transplantationPoint-of-care ultrasound findingsEmergency physiciansIncreased tricuspid regurgitationPost-cardiac transplantationCardiac allograft vasculopathyRight heart catheterizationEnd-stage heart failureShortness of breathAllograft vasculopathyConfirmatory biopsyRV dysfunctionDiastolic abnormalitiesEndomyocardial biopsyTricuspid regurgitationHeart catheterizationCardiac transplantationTransplant-related issuesNonspecific symptomsArtificial Intelligence–Guided Lung Ultrasound by Nonexperts
Baloescu C, Bailitz J, Cheema B, Agarwala R, Jankowski M, Eke O, Liu R, Nomura J, Stolz L, Gargani L, Alkan E, Wellman T, Parajuli N, Marra A, Thomas Y, Patel D, Schraft E, O’Brien J, Moore C, Gottlieb M. Artificial Intelligence–Guided Lung Ultrasound by Nonexperts. JAMA Cardiology 2025, 10: 245-253. PMID: 39813064, PMCID: PMC11904735, DOI: 10.1001/jamacardio.2024.4991.Peer-Reviewed Original ResearchThis study shows AI helps non-experts create expert-quality lung ultrasound images, which may improve healthcare diagnostics access in underserved areas.Accuracy of point-of-care ultrasound in diagnosing retained products of conception
Boivin Z, Barber D, Chimileski B, Fetherston T, Li J, Liu R, Moore C. Accuracy of point-of-care ultrasound in diagnosing retained products of conception. The American Journal Of Emergency Medicine 2025, 90: 65-70. PMID: 39826241, DOI: 10.1016/j.ajem.2025.01.032.Peer-Reviewed Original ResearchConceptsRetained Products of ConceptionObstetrics and GynecologyPoint-of-care ultrasoundAccuracy of point-of-care ultrasoundProducts of conceptionChart reviewRadiology ultrasoundTransabdominal point-of-care ultrasoundEmergency departmentTest characteristics of point-of-care ultrasoundRetrospective cohort studyPoint-of-care ultrasound examinationPoint-of-care ultrasound imagingGold standard diagnosisIndeterminate examinationsIntrauterine pregnancyIntrauterine tissuesUltrasound fellowsPregnancy terminationEarly pregnancyFemale patientsSurgical proceduresNonblinded investigationCohort studyPOCUS examinationsGovernance Considerations for Point-of-Care Ultrasound: a HIMSS-SIIM Enterprise Imaging Community Whitepaper in Collaboration with AIUM
Ma I, Francavilla M, Nomura J, Kielski A, Fernandez F, Piro K, Liu R, Valenzuela J, Toland M, Koehler J, Cohen G, Eid M, Choi W, Nolan J, Ferre R, McBee M, Kummer T, Lanspa M, Brown J, DeStigter K, Desyatnikova S, Bottemiller A. Governance Considerations for Point-of-Care Ultrasound: a HIMSS-SIIM Enterprise Imaging Community Whitepaper in Collaboration with AIUM. Journal Of Imaging Informatics In Medicine 2025, 38: 2585-2599. PMID: 39753828, PMCID: PMC12572525, DOI: 10.1007/s10278-024-01365-7.Peer-Reviewed Original ResearchEnterprise imagePoint-of-care ultrasoundWorkflow solutionTechnology governanceWorkflow needsInformation governancePatient care outcomesPoint-of-careUnique workflowCare outcomesClinical governancePoint-of-care ultrasound imagingHealthcare settingsHealthcare systemOperational efficiencyImagesImplementationInformationHealthcareEducational requirementsGovernance committeeClinical informationInstitutional policiesWorkflow
Academic Achievements & Community Involvement
Clinical Care
Overview
Rachel Liu, MBBCh (a medical degree from outside the U.S.), is a specialist in emergency medicine with a particular focus on the use of point-of-care ultrasound, a portable imaging technique that allows clinicians to obtain real-time visual information at the bedside, assisting in the rapid diagnosis and management of various conditions.
In addition to her clinical work, Dr. Liu is an associate professor of emergency medicine at Yale School of Medicine. She serves as the director of point-of-care ultrasound education and integrates ultrasound education across basic, physical, and clinical sciences for medical students.
Dr. Liu earned her medical degree from Trinity College and completed her residency in emergency medicine at New York Medical College/Metropolitan Hospital Center. She further specialized with a fellowship in emergency ultrasound at Yale School of Medicine.
Clinical Specialties
Emergency Medicine
Fact Sheets
Bedside Ultrasound
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Board Certifications
Emergency Medicine
- Certification Organization
- AB of Emergency Medicine
- Original Certification Date
- 2012
Yale Medicine News
News & Links
News
- June 22, 2026
Armenian Emergency Medicine Physicians Visit Yale
- June 04, 2026
Yale Emergency Medicine Leads the National Stage at SAEM26
- December 18, 2025
Liu Appointed Vice Chair of Faculty Affairs
- May 13, 2025
First Annual Student Simulation SIMposium
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