Long H. Tu, MD, PhD
Assistant Professor of Radiology and Biomedical ImagingCards
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Radiology & Biomedical Imaging
20 York Street, South Pavilion, 2nd Floor
New Haven, CT 06520
United States
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Titles
Assistant Professor of Radiology and Biomedical Imaging
Biography
Dr. Long H. Tu is an emergency/trauma radiologist, neuroradiologist, and physician-scientist at Yale School of Medicine. Dr. Tu 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.
Dr. Tu serves as co-Medical Director of Clinical Affairs in Radiology, Director of Resident Education in Neuroradiology, and Deputy Director of Emergency Neuroradiology. Dr. Tu directs a multi-disciplinary, multi-site research group (the “TL|DR”) which advances stroke diagnosis, imaging stewardship, and workflow efficiency. Dr. Tu’s ongoing research addresses the role of imaging in stroke prevention, healthcare cost, and population health.
Dr. Tu is the author/editor of 4 textbooks, including the widely-read texts “Search Pattern” and “How to be a More Efficient Radiologist.” He is the author/co-author of more than 100 published articles, chapters, and reviews. Dr. Tu has provided more than 200 lectures/presentations at professional meetings and produced more than 60 online lectures. Dr. Tu has designed more than 100 reporting, clinical decision support, workflow automation tools in active use at Yale as well as throughout the United States. He has served as primary mentor to more than 50 post-doctoral researchers, trainees, and students.
Appointments
Radiology & Biomedical Imaging
Assistant ProfessorPrimary
Other Departments & Organizations
- Clinical Radiology
- Neuroradiology
- Radiology & Biomedical Imaging
- Tu Lab
- Yale Medicine
- Yale New Haven Health System
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 School of Medicine (2009)
Research
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Overview
Medical Research Interests
Public Health Interests
ORCID
0000-0002-2419-5581- View Lab Website
Tu Lab | Diagnostic Research
Research at a Glance
Yale Co-Authors
Publications Timeline
Research Interests
Ajay Malhotra, MBBS, MD, MMM, FACR
Howard Forman, MD, MBA, FACR
Arjun Venkatesh, MD, MBA, MHS
Amit Mahajan, MD, MBBS
Ted Melnick, MD, MHS
Kevin Sheth, MD, FAHA
Stroke
Quality Improvement
Diagnostic Errors
Publications
2026
Efficacy, Safety, and of Midazolam and Diazepam in the Management of Status Epilepticus in Pediatric Patients: A Systematic Review and Meta-analysis with Trial Sequential Analysis and GRADE Assessment (S19.006)
Kertam A, Hatem N, Nabil Y, Harb A, Sabri M, Mostafa M, Allam S, Mostafa M, Abdeen I, Tu L. Efficacy, Safety, and of Midazolam and Diazepam in the Management of Status Epilepticus in Pediatric Patients: A Systematic Review and Meta-analysis with Trial Sequential Analysis and GRADE Assessment (S19.006). Neurology 2026, 106 DOI: 10.1212/wnl.0000000000215964.Peer-Reviewed Original ResearchCorrection: Efficacy, safety, route of administration of midazolam and diazepam for pediatric status epilepticus: systematic review, meta-analysis, and trial sequential analysis
Kertam A, Hatem N, AL-AZZAWI O, Tu L, Harb A, Hassanin M, Abdeen I, Mostafa M, Allam S, Mostafa M, Nabil Y. Correction: Efficacy, safety, route of administration of midazolam and diazepam for pediatric status epilepticus: systematic review, meta-analysis, and trial sequential analysis. Pediatric Research 2026, 1-3. PMID: 42092021, DOI: 10.1038/s41390-026-05063-8.Peer-Reviewed Original ResearchEfficacy, safety, route of administration of midazolam and diazepam for pediatric status epilepticus: systematic review, meta-analysis, and trial sequential analysis
Kertam A, Hatem N, AL-AZZAWI O, Tu L, Harb A, Hassanin M, Abdeen I, Mostafa M, Allam S, Mostafa M, Nabil Y. Efficacy, safety, route of administration of midazolam and diazepam for pediatric status epilepticus: systematic review, meta-analysis, and trial sequential analysis. Pediatric Research 2026, 1-13. PMID: 41904318, DOI: 10.1038/s41390-025-04722-6.Peer-Reviewed Original ResearchAltmetricConceptsTrial sequential analysisPediatric status epilepticusTherapeutic successStatus epilepticusEmergency medical services guidelinesDrug-related side effectsNon-intravenous routesIntramuscular routeMeta-analysisAdministration of midazolamLife-threatening pediatric emergenciesStandard benzodiazepineRandomized Controlled TrialsTreatment failureHigh-quality evidenceSeizure cessationIntravenous formulationPediatric vascular accessSafety profileRespiratory depressionNasal formulationsPrehospital delayRescue optionIntravenous efficacyAdministration routeThird and fourth branchial cleft cysts – A 25-year institutional experience of imaging detection and pathologic diagnosis
Rahmani S, de Oliveira Santo I, Kim J, Nguyen J, Tu L. Third and fourth branchial cleft cysts – A 25-year institutional experience of imaging detection and pathologic diagnosis. Clinical Imaging 2026, 133: 110770. PMID: 41780117, DOI: 10.1016/j.clinimag.2026.110770.Peer-Reviewed Original ResearchMeSH Keywords and ConceptsConceptsBranchial cleft cystCleft cystInstitutional experienceSingle-time-point imagingExploratory logistic regressionPathological confirmationSurgery ratesPathological diagnosisCystic lesionsCystic abnormalitiesInclusion criteriaEmergency departmentPatientsClinical settingRadiology reportsLesionsLogistic regressionIBM SPSS StatisticsSurgeryModalitiesCTPPVCystsPathologySPSS StatisticsA systematic approach to detection of epileptogenic foci on imaging: protocols, entities, search pattern, and reporting tools.
Lozano R, Dixe de Oliveira Santo I, Kenny-Howel C, Bronen R, Adin M, Tu L. A systematic approach to detection of epileptogenic foci on imaging: protocols, entities, search pattern, and reporting tools. The Neuroradiology Journal 2026, 19714009261417577. PMID: 41544245, PMCID: PMC12811103, DOI: 10.1177/19714009261417577.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsImaging donor site complications after autologous breast reconstruction flaps: a pictorial review
Rahmani S, DO C, Ly Q, Ahmadzadeh A, Zahedpasha R, Asif M, Kertam A, Tu L. Imaging donor site complications after autologous breast reconstruction flaps: a pictorial review. Emergency Radiology 2026, 33: 319-335. PMID: 41511624, DOI: 10.1007/s10140-025-02431-5.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsDeep inferior epigastric perforatorProfunda artery perforatorAutologous breast reconstructionDonor site complicationsMagnetic resonance imagingBreast reconstructionSite complicationsComputed tomographyPictorial reviewTransverse rectus abdominis myocutaneous (TRAM) flapAbdominal wall bulgingClinically significant complicationsAutologous fat graftingPost-mastectomy reconstructionLatissimus dorsi flapMultimodal imaging featuresWound dehiscenceReconstructive flapsSignificant complicationsDiagnostic challengeFat necrosisPostoperative changesArtery perforatorFat graftingDorsi flapEfficient, Not Exhausted-From Training to Practice, an AJR Podcast Series (Episode 7).
Raichandani S, Tu L. Efficient, Not Exhausted-From Training to Practice, an AJR Podcast Series (Episode 7). American Journal Of Roentgenology 2026, 226: e2534461. PMID: 41499705, DOI: 10.2214/ajr.25.34461.Peer-Reviewed Original ResearchAltmetricChapter 19 Machine learning applications in neuroradiology
Tegtmeyer K, Tu L. Chapter 19 Machine learning applications in neuroradiology. Advances In Magnetic Resonance Technology And Applications 2026, 13: 545-563. DOI: 10.1016/b978-0-443-14109-6.00019-5.Chapters
2025
Differentiating Glioma from Brain Metastasis Using Neurite Orientation Dispersion and Density Imaging: A Systematic Review and Meta-Analysis.
Ahmadzadeh A, Lomer N, Ghaderi S, Sani M, Bathla G, Tu L. Differentiating Glioma from Brain Metastasis Using Neurite Orientation Dispersion and Density Imaging: A Systematic Review and Meta-Analysis. American Journal Of Neuroradiology 2025, 47: 1596-1603. PMID: 41412743, PMCID: PMC13232666, DOI: 10.3174/ajnr.a9148.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsCitationsConceptsStandardized mean differencePeritumoral edema areaBrain metastasesNoninvasive imaging biomarkerOrientation dispersion indexIntracellular volume fractionGlioblastoma subgroupIsotropic volume fractionDifferential diagnosisEdema areaDiagnosis of intracranial tumorsDifferential diagnosis of intracranial tumorsMean differenceSystematic reviewImaging biomarkersContrast-enhancing tumorNeurite orientation dispersionMeta-analysisContrast-enhancing regionNewcastle-Ottawa ScaleBegg and Egger testsRandom-effects modelBM patientsNo significant differenceIntracranial tumorsTrends in Head CT Use in US Emergency Department Patients From 2007 to 2022
Dylla L, Krothapalli N, Tu L, Payabvash S, Burke J, Sheth K, Wira C, de Havenon A. Trends in Head CT Use in US Emergency Department Patients From 2007 to 2022. Neurology 2025, 105: e214347. PMID: 41259742, DOI: 10.1212/wnl.0000000000214347.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsHead CT scanHead CTCT scanHead CT useNational Hospital Ambulatory Medical Care SurveyCT useED encountersRetrospective cohort analysisMultivariate logistic regressionEmergency department patientsLength of stayPatient agePatient demographicsCT usageNeurological emergencyCohort analysisDepartment patientsED delaysPatientsRural hospitalsEmergency departmentED admissionLogistic regressionStudy exposureCare Survey
Clinical Care
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Overview
Long H. Tu, MD, PhD, is a diagnostic radiologist at Yale New Haven Hospital. He serves patients within three clinical services: emergency/trauma radiology, neuroradiology, and thoracic radiology. Dr. Tu has special expertise in emergency neuroradiology, including the imaging and diagnosis of patients with acute neurological conditions.
In his academic role, Dr. Tu serves as a faculty member in the Department of Radiology and Biomedical Imaging at Yale School of Medicine. He advances the quality, safety, and efficiency of care through roles as an administrator, educator, researcher, and clinician. Dr. Tu also directs a multidisciplinary research group, teaches students and trainees, and writes educational and scientific works for a broad medical audience.
Clinical Specialties
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Radiology & Biomedical Imaging
20 York Street, South Pavilion, 2nd Floor
New Haven, CT 06520
United States