Abstract #3578
Gadoxetic Acid-Enhanced MR Imaging for T-Staging of Gallbladder Carcinoma: Emphasis on Liver Invasion
Jiyoung Hwang 1 , Young Kon Kim 2 , Mi Hee Lee 3 , and Hyun-joo Kim 1
1
Department of Radiology, Soonchunhyang
University Seoul Hospital, Seoul, Seoul, Korea,
2
Department
of Radiology and Center for Imaging Science, Samsung
Medical Center, Sungkyunkwan University School of
Medicine, Seoul, Seoul, Korea,
3
Radiology,
Samsung Medical Center, Sungkyunkwan University School
of Medicine, Seoul, Seoul, Korea
Purpose: To evaluate gadoxetic acid-enhanced MR imaging
with an emphasis on the usefulness of hepatobiliary
phase (HBP) in T-staging of gallbladder carcinoma.
Methods: 66 patients with confirmed gallbladder
carcinoma underwent gadoxetic acid-enhanced MR imaging.
Two radiologists independently reviewed two sets of MR
imaging without / with HBP for local tumor spread.
Results: This study yielded acceptable diagnostic
performance with gadoxetic acid-enhanced MR imaging with
the overall accuracies of 86.4% and 87.9% for each
observer. By adding HBP, the sensitivities to
differentiate T2 versus T3 lesions were increased
for both observers although there was no significant
difference (P > 0.05). Conclusions: Gadoxetic
acid-enhanced MR imaging provided acceptable diagnostic
performance for T-staging of gallbladder carcinoma.
Addition of HBP aids in detection of liver invasion.
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