Combined parenchymal and vascular imaging: High spatiotemporal resolution arterial evaluation of hepatocellular carcinoma

Journal of Magnetic Resonance Imaging : JMRI
Thomas A HopeShreyas S Vasanawala

Abstract

To assess the ability of high-resolution arterial phase imaging of hepatocellular carcinoma (HCC) to provide combined vascular characterization and parenchymal evaluation. Thirty-eight consecutive studies in cirrhotic patients with HCC scanned with a view-shared 2-point-Dixon-based Differential Subsampling with Cartesian Ordering (DISCO) sequence were analyzed. Lesion contrast relative to precontrast and adjacent parenchyma was evaluated and compared using a Fisher's exact test. Visibility of hepatic arteries and tumor feeding vessels were graded on a 5-point scale. Catheter angiography was used as a reference standard for arterial anatomy. The high spatiotemporal multiphasic acquisition allowed imaging of both the angiographic and late arterial phase in 30 of 38 studies with good image quality. Maximal lesion enhancement compared to precontrast occurred more frequently during the late arterial phase compared to maximal lesion-to-adjacent, which occurred more frequently during the early arterial phase (P < 0.001). Common and proper hepatic arteries were visualized adequately in 100%, right hepatic artery in 94-97%, left hepatic artery in 94%, and segmental vessel in 83% of cases. Arterial variants were detected with sensitivity...Continue Reading

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Citations

Mar 2, 2018·Investigative Radiology·Jakob WeissAhmed E Othman
Aug 15, 2018·AJR. American Journal of Roentgenology·Jason J BaileyThomas A Hope
Nov 14, 2019·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Kambiz NaelJ Mocco
May 20, 2017·Journal of Nuclear Medicine : Official Publication, Society of Nuclear Medicine·Thomas A HopePeter R Carroll

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