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Hepatic tumors: Magnetization transfer MR imaging with gadolinium enhancement

✍ Scribed by Hiroaki Onaya; Hiroshi Yoshioka; Yuji Itai; Mamoru Niitsu; Izumi Anno; Toshiyuki Okumura

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
925 KB
Volume
5
Category
Article
ISSN
1053-1807

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✦ Synopsis

Thirty patients with 15 hepatocellular carcinomas, 10 metastases, four hemangiomas. and one cholangiocarcinoma underwent magnetic resonance imaging at 1.5 T with T1-weighted. T2weighted spin-echo (SE) images, gradient-echo (GRE) magnetization transfer (MT) images, and gadolinium-enhanced T1-weighted SE and MT-ORE images. The MT effect and lesion-liver contrast-to-noise ratio (C/N) were calculated and visual assessment (qualitative analysis) performed for unenhanced and enhanced MT-GRE images and enhanced T1-weighted SE images. The C/N values for hepatic adenocarcinomas (seven metastases and one cholangiocarcinoma) and hemangiomas were larger for enhanced MT-ORE images (adenocarcinoma. 8.4 f 2.3 [P < .Ol]: hemangioma, 24 f 2.1 [P < .OS]) than for enhanced GRE images (6.0 f 1.9 and 18 f 2.7. respectively). These enhancing tumors had the highest scores in the qualitative analysis. Enhanced MT-GRE images showed no advantage for depiction of hepatocellular carcinomas relative to the other images. Index term#:

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