LI-RADS ancillary feature prediction of longitudinal category changes in LR-3 observations: an exploratory study
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HEPATOBILIARY
LI‑RADS ancillary feature prediction of longitudinal category changes in LR‑3 observations: an exploratory study Erin Shropshire1 · Adrija Mamidipalli2 · Tanya Wolfson3 · Brian C. Allen1 · Tracy A. Jaffe1 · Saya Igarashi2,4 · Atsushi Higaki2,5 · Masahiro Tanabe2,6 · Anthony Gamst3 · Claude B. Sirlin2 · Mustafa R. Bashir1
© Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Purpose To determine whether LI-RADS ancillary features predict longitudinal LR-3 observation category changes. Materials and Methods This exploratory, retrospective, single-center study with an independent reading center included patients who underwent two or more multiphase CT or MRI examinations for hepatocellular carcinoma assessment between 2011 and 2015. Three readers independently evaluated each observation using CT/MRI LI-RADS v2017, and observations categorized LR-3 using major features only were included in the analysis. Prevalence of major and ancillary features was calculated. After excluding low-frequency (
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