Long H. Tu, MD, PhD
Assistant Professor of Radiology and Biomedical ImagingDownloadHi-Res Photo
Cards
Are You a Patient?
View this doctor's clinical profile on the Yale Medicine website for information about the services we offer and making an appointment.
View Doctor ProfileContact Info
Radiology & Biomedical Imaging
20 York Street, South Pavilion, 2nd Floor
New Haven, CT 06520
United States
About
Copy Link
Titles
Assistant Professor of Radiology and Biomedical Imaging
Biography
Long Tu is a health services researcher, emergency radiologist, and neuroradiologist at Yale School of Medicine. He is a graduate of Yale's Diagnostic Radiology residency and Neuroradiology fellowship, where he served as chief resident and chief fellow respectively. He subsequently completed clinical and research fellowships at Yale in Emergency/Trauma Radiology.
Long's research interests include diagnostic error, imaging utilization, and healthcare economics. His research leverages techniques in data science, machine learning, and decision analysis to improve the diagnosis of patients with acute neurological disorders. His most recent work has focused on improving the detection and management of acute ischemic stroke. Long also directs a research group that develops clinical decision support, reporting, and workflow optimization tools.
Long is the author of three leading texts in diagnostic imaging. His first book, Search Pattern: A Systematic Approach to Diagnostic Imaging, is an internationally best-seller in radiology. His second book, A Brief Guide to the Neuroradiology Fellowship, is one of the most widely used by neuroradiology fellows in the US. Long's latest book, How to be a More Efficient Radiologist: A Guide to Practice, Reporting, and Workflow Optimization, examines skills critical to modern clinical practice.
Last Updated on March 08, 2024.
Appointments
Radiology & Biomedical Imaging
Assistant ProfessorPrimary
Other Departments & Organizations
- Clinical Radiology
- Neuroradiology
- Radiology & Biomedical Imaging
- Tu Lab
- Yale Medicine
Education & Training
- PhD
- Yale Graduate School of Arts and Sciences (2023)
- Research Fellow, Emergency Radiology
- Yale School of Medicine (2023)
- Clinical Fellow, Emergency Radiology
- Yale School of Medicine (2022)
- Chief Fellow, Neuroradiology
- Yale New Haven Hospital (2021)
- Chief Resident, Radiology
- Yale New Haven Hospital (2020)
- Resident, Radiology
- Yale New Haven Hospital (2019)
- MD
- University of Connecticut (2015)
Research
Copy Link
Overview
Medical Research Interests
Costs and Cost Analysis; Data Science; Diagnostic Errors; Education, Medical; Education, Medical, Graduate; Efficiency; Health Care Economics and Organizations; Ischemic Stroke; Machine Learning; Quality Improvement; Stroke
Public Health Interests
Health Care Quality, Efficiency; Implementation Science; Health Informatics
ORCID
0000-0002-2419-5581- View Lab Website
Tu Lab | Diagnostic Research
Research at a Glance
Yale Co-Authors
Frequent collaborators of Long H. Tu's published research.
Publications Timeline
A big-picture view of Long H. Tu's research output by year.
Research Interests
Research topics Long H. Tu is interested in exploring.
Ajay Malhotra, MBBS, MD, MMM, FACR
Howard Forman, MD, MBA, FACR
Arjun Venkatesh, MD, MBA, MHS
Amit Mahajan, MD
Ted Melnick, MD, MHS
Dhasakumar Navaratnam, MD, PhD
57Publications
375Citations
Stroke
Quality Improvement
Diagnostic Errors
Publications
2025
Application of Deep Learning for Predicting Hematoma Expansion in Intracerebral Hemorrhage Using Computed Tomography Scans: A Systematic Review and Meta-Analysis of Diagnostic Accuracy
Ahmadzadeh A, Ashoobi M, Broomand Lomer N, Elyassirad D, Gheiji B, Vatanparast M, Bathla G, Tu L. Application of Deep Learning for Predicting Hematoma Expansion in Intracerebral Hemorrhage Using Computed Tomography Scans: A Systematic Review and Meta-Analysis of Diagnostic Accuracy. La Radiologia Medica 2025, 1-13. PMID: 40932678, DOI: 10.1007/s11547-025-02089-6.Peer-Reviewed Original ResearchConceptsQuality Assessment of Diagnostic Accuracy Studies-2Hematoma expansionIntracerebral hemorrhageDiagnostic likelihood ratiosComputed tomographySubgroup analysisPositive diagnostic likelihood ratioMeta-analysis of diagnostic accuracyIntensive blood pressure controlDiagnostic Accuracy Studies-2Intracerebral hemorrhage patientsDeeks' asymmetry testDiagnostic odds ratioArea under the curveComputed tomography scanEffects of individual studiesBlood pressure controlNegative diagnostic likelihood ratiosComprehensive literature searchInter-group differencesResultsTwenty-two studiesRadiomics scoreTomography scanDiagnostic accuracyHemostatic drugsA Systematic Approach to the Evaluation of Lumbosacral Plexus MRI: Indications, Protocol Anatomy, and Pathology.
Rahmani S, Hamilton C, de Oliveira Santo I, Nguyen J, Zaree O, Kenny-Howell C, Kirsch C, Tu L. A Systematic Approach to the Evaluation of Lumbosacral Plexus MRI: Indications, Protocol Anatomy, and Pathology. American Journal Of Neuroradiology 2025, ajnr.a8976. PMID: 40854685, DOI: 10.3174/ajnr.a8976.Peer-Reviewed Original ResearchConceptsPlexus magnetic resonance imagingMagnetic resonance imagingLumbosacral plexusTurbo spin echoChronic inflammatory demyelinating polyneuropathyVolumetric Interpolated Breath-hold ExaminationInflammatory demyelinating polyneuropathySpin echoAcquisition single-shot turbo spin-echoPeripheral nerve disordersSingle-shot turbo spin-echoHalf-Fourier acquisition single-shot turbo spin-echoDiffusion-weighted imagingMagnetic resonance imaging protocolShort-tau inversion recoveryBreath-hold examinationTau inversion recoveryApplication-optimized contrastsFlip angle evolutionsSteady-state free precessionCompressive etiology" Disparities in MRI and TRUS for Prostate Cancer Detection: A Systematic Review and Meta-Analysis of 94,020 Cases"
Bahrami A, Tu L, Ghanikolahloo M, Sadeghi Z, Tafazolimoghadam A, Farzan M, Fathi M, Khakpour Y, Tavasol A, Alipour M, Shoja A, Azami M, Clifford T, Hajibeygi R, Iftikhar S. " Disparities in MRI and TRUS for Prostate Cancer Detection: A Systematic Review and Meta-Analysis of 94,020 Cases". Current Problems In Diagnostic Radiology 2025 PMID: 40820058, DOI: 10.1067/j.cpradiol.2025.08.002.Peer-Reviewed Original ResearchAltmetricConceptsUtilization of magnetic resonance imagingMagnetic resonance imagingTransrectal ultrasoundPC diagnosisSystematic reviewProstate cancerMeta-analysisWhite patientsProstate cancer detectionWeb of ScienceHealth policyRacial disparitiesBegg's testEmbase databasesCancer deathPrevalent cancersBlack patientsPublication biasRadiology utilizationSystematic searchResonance imagingRelevant articlesPatientsImaging utilizationDisparitiesCharacterizing iron rim lesions in multiple sclerosis: a biomarker for disease activity and progression: a systematic review and meta-analysis
Motamedgorji N, Bahrami A, Taher H, Mohamedbaqer Easa A, Salehi S, Tafazolimoghadam A, Farzan M, Sadeghi Z, Mofidinaeini S, Hajibeygi R, Khakpour Y, Fathi M, Zoghi A, Tu L. Characterizing iron rim lesions in multiple sclerosis: a biomarker for disease activity and progression: a systematic review and meta-analysis. Neuroradiology 2025, 1-17. PMID: 40689996, DOI: 10.1007/s00234-025-03663-5.Peer-Reviewed Original ResearchAltmetricConceptsLong-term clinical implicationsWhite matter lesionsClinical outcomesSusceptibility-weighted imagingDisease-modifying treatmentsStandardized mean differenceMS patientsMultiple sclerosisPrognostic valueMeta-analysisResponse to disease-modifying treatmentsRim lesionsRelative riskHigh-dose treatmentRelapse rate ratioResultsThis meta-analysisRoutine medical evaluationIron rim lesionsBrain volumeChronic active inflammationAdvanced MRI techniquesSystematic reviewWhite matter lesion loadMethodsA thorough searchFrequent relapsesPractical Notes on Leveraging the Detection of Previously Unknown Strokes to Impact Patient Outcomes
Kenny-Howell C, Dixe de Oliveira Santo I, Wira C, de Havenon A, Tu L. Practical Notes on Leveraging the Detection of Previously Unknown Strokes to Impact Patient Outcomes. Journal Of The American College Of Radiology 2025 PMID: 40499627, DOI: 10.1016/j.jacr.2025.06.011.Peer-Reviewed Original ResearchDiagnostic yield of an abbreviated MRI protocol in the evaluation of dizziness in the emergency department, a single institutional experience
Shareef F, Tu L, Neupane A, Siddique Z, Joshi R, Melnick E, Wira C, Mahajan A. Diagnostic yield of an abbreviated MRI protocol in the evaluation of dizziness in the emergency department, a single institutional experience. Emergency Radiology 2025, 32: 559-568. PMID: 40471503, DOI: 10.1007/s10140-025-02349-y.Peer-Reviewed Original ResearchConceptsAbbreviated MRI protocolDiagnostic yieldIntracranial pathologyEmergency departmentAcute findingsMRI protocolEvaluation of dizzinessMethodThis retrospective studyDetecting intracranial pathologySignificant intracranial pathologyAxial DWIAxial FLAIRProtocol MRIAbbreviated protocolSupratentorial pathologySWI sequencesMRI findingsRetrospective studyUrgent care settingsAdult patientsCentral etiologyAcute dizzinessInfratentorial siteInstitutional experienceInfarct characteristicsUtilization, detection rate, and pathologies on lumbosacral plexus MRI: a 25-year institutional experience
Rahmani S, Hamilton C, Nguyen J, Zaree O, Kenny-Howell C, Kirsch C, Tu L. Utilization, detection rate, and pathologies on lumbosacral plexus MRI: a 25-year institutional experience. Clinical Imaging 2025, 125: 110529. PMID: 40494183, DOI: 10.1016/j.clinimag.2025.110529.Peer-Reviewed Original ResearchConceptsPlexus MRIAbnormal findingsImaging findingsClinical indicationsPlexus magnetic resonance imagingPredictors of abnormal findingsMRI examsAssociated with abnormal findingsAbnormal radiological featuresConfounding clinical featuresTertiary referral centerAbnormal imaging findingsAbnormal MRI findingsEvaluated clinical indicatorsNerve sheath tumorsClinically relevant pathologyMultivariate logistic regressionPercentage of casesMagnetic resonance imagingInfectious/inflammatory etiologyLumbar radiculopathySheath tumorsLumbosacral plexopathyPatient ageReferral centerThe Value of Radiology Consultation: Effort Allocation, Clinical Impact, and Untapped Opportunities
Iftikhar S, Rahmani S, Zaree O, Kertam A, Farquhar T, Tu L. The Value of Radiology Consultation: Effort Allocation, Clinical Impact, and Untapped Opportunities. Journal Of The American College Of Radiology 2025, 22: 887-896. PMID: 40204166, DOI: 10.1016/j.jacr.2025.04.006.Peer-Reviewed Original ResearchCitationsAltmetricConceptsConsulting workWorking hoursArtificial intelligence-based technologiesValue-based reimbursement modelsCurrent Procedural Terminology billing codesEffort allocationUntapped opportunitiesProcedural terminology billing codesCost of timeImpact patient careFormal mechanismsAd hocFuture of radiologyNoninterpretive tasksNon-face-to-facePatient careGroup practiceReimbursement modelsConsultation codesBilling codesInterpretation of imagesIndividual radiologistsMultidisciplinary conferenceCodeEquitable reimbursementCorrection to: Detectability of acute ischemic stroke with thin (3 mm) axial versus thin (3 mm) coronal diffusion-weighted imaging in patients presenting to the emergency department with acute dizziness
Lozano R, Shareef F, Neupane A, Siddique Z, Joshi R, Pasquini L, Tu L, Mahajan A. Correction to: Detectability of acute ischemic stroke with thin (3 mm) axial versus thin (3 mm) coronal diffusion-weighted imaging in patients presenting to the emergency department with acute dizziness. Emergency Radiology 2025, 32: 485-485. PMID: 40106121, DOI: 10.1007/s10140-025-02333-6.Peer-Reviewed Original ResearchDetectability of acute ischemic stroke with thin (3 mm) axial versus thin (3 mm) coronal diffusion-weighted imaging in patients presenting to the emergency department with acute dizziness
Lozano R, Shareef F, Neupane A, Siddique Z, Joshi R, Pasquini L, Tu L, Mahajan A. Detectability of acute ischemic stroke with thin (3 mm) axial versus thin (3 mm) coronal diffusion-weighted imaging in patients presenting to the emergency department with acute dizziness. Emergency Radiology 2025, 32: 225-231. PMID: 40053160, DOI: 10.1007/s10140-025-02327-4.Peer-Reviewed Original ResearchCitationsConceptsAxial DWIIschemic lesionsMRI examinationsDetection of brain ischemiaEmergency departmentIschemic strokeMiddle cerebellar peduncleRetrospective cohort studyDiffusion-weighted imagingAcute ischemic strokeDetection of acute ischemic strokeDetection of ischemiaMethodsRetrospective studyPosterior circulationAxial MRIDWI sequencesAcute dizzinessCerebellar pedunclePurposeIschemic strokeCoronal sequencesCohort studyDiagnostic utilityMRI protocolMcNemar testBrain ischemia
Clinical Care
Copy Link
Overview
Dr. Long H. Tu, MD, PhD, is a specialist in neuroradiology and emergency radiology. He has specific expertise in advanced imaging techniques and their application to acute neurologic conditions, such as ischemic stroke. Dr. Tu is dedicated to enhancing patient care in emergency settings by improving the speed, accuracy, and quality of medical imaging.
In his academic role, he serves as an assistant professor in the Department of Radiology and Biomedical Imaging at Yale School of Medicine. Dr. Tu teaches medical trainees and students, directs a research group, and writes both educational and scientific works for a broader medical audience.
Clinical Specialties
Emergency Radiology; Neuroradiology
Are You a Patient?
View this doctor's clinical profile on the Yale Medicine website for information about the services we offer and making an appointment.
View Doctor ProfileLinks
Copy Link
Get In Touch
Copy Link
Contacts
Email
Academic Office Number
Mailing Address
Radiology & Biomedical Imaging
20 York Street, South Pavilion, 2nd Floor
New Haven, CT 06520
United States