Clinical Gastroenterology Vol.26 No.9(8)

Theme Abdominal Ultrasonography up-to-date
Title Ultrasound Guided Hepatic Tumor Biopsy and Treatment
Publish Date 2011/08
Author Kazushi Numata Gastroenterological Center, Yokohama City University Medical Center
Author Hiroyuki Fukuda Gastroenterological Center, Yokohama City University Medical Center
Author Manabu Morimoto Gastroenterological Center, Yokohama City University Medical Center
Author Masaaki Kondo Gastroenterological Center, Yokohama City University Medical Center
Author Akito Nozaki Gastroenterological Center, Yokohama City University Medical Center
Author Katsuaki Tanaka Gastroenterological Center, Yokohama City University Medical Center
[ Summary ] Fusion imaging can fuse US images with multiplanar reconstructed computed tomography (CT) or magnetic resonance (MR) images on a single screen in real time using a LOGIQ E9(GE Healthcare, Milwaukee, WI). To provide histological diagnosis of hepatic lesions which do not exhibit arterial hypervascularization or venous washout on contrast-enhanced CT or contrast-enhanced US but are detected in the hepatobiliary phase of contrast-enhanced MR with gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic acid (Gd-EOB-DTPA), the lesions must be detectable using US imaging. Imaging such as conventional US or contrast-enhanced US may be employed, so that a biopsy may be performed. We used fusion imaging combining, which fuses B-mode images with the hepatobiliary phase of contrast-enhanced MR images Gd-EOBDTPA as a reference image, for the detection of hepatic lesions. We also performed ablation therapy for hypervascular hepatocellular carcinoma lesions which exhibited arterial hypervascularization and venous washout on contrast-enhanced T or contrast-enhanced US. Those lesions were not detected by using B-mode guided fusion imaging combining arterial phase contrast-enhanced CT or MRI with early or late phase contrast-enhanced US.
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