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Brian C Allen

Professor of Radiology
Radiology, Abdominal Imaging

Current Appointments & Affiliations


Professor of Radiology · 2024 - Present Radiology, Abdominal Imaging, Radiology

Recent Publications


Diagnostic Performance of CT/MRI LI-RADS Version 2018 Major Feature Combinations: Individual Participant Data Meta-Analysis.

Journal Article Radiology · June 2025 Background The CT/MRI Liver Imaging Reporting and Data System (LI-RADS) diagnostic algorithm classifies liver observations in patients with high-risk hepatocellular carcinoma (HCC) using imaging features. However, data regarding the diagnostic performance ... Full text Link to item Cite

Predictors of hepatocellular carcinoma in LR-M category lesions, a multi-institutional analysis.

Journal Article Abdom Radiol (NY) · April 28, 2025 PURPOSE: The Liver Imaging Reporting and Data System (LI-RADS, LR) provides a framework for diagnosing hepatocellular carcinoma (HCC, LR-5). However, not all HCCs meet LR-5 criteria and are instead categorized as LR-M, probably or definitely malignant but ... Full text Link to item Cite

Is concurrent LR-5 associated with a higher rate of hepatocellular carcinoma in LR-3 or LR-4 observations? An individual participant data meta-analysis.

Journal Article Abdom Radiol (NY) · April 2025 BACKGROUND: The Liver Imaging Reporting and Data System (LI-RADS) does not consider factors extrinsic to the observation of interest, such as concurrent LR-5 observations. PURPOSE: To evaluate whether the presence of a concurrent LR-5 observation is associ ... Full text Link to item Cite
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Recent Grants


Liver surface nodularity score as a new noninvasive biomarker for chronic viral hepatitis

ResearchPrincipal Investigator · Awarded by ImageIQ, Inc. · 2016 - 2017

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Education, Training & Certifications


Medical College of Wisconsin · 2004 M.D.