Authors: Osamu Tanaka Hirotoshi Ito Kei Yamada Takao Kubota Osamu Kizu Takeharu Kato Takuji Yamagami Tsunehiko Nishimura
Publish Date: 2005/07/23
Volume: 15, Issue: 12, Pages: 2427-2434
Abstract
The aim of our study was to compare the signaltonoise ratio SNR of liver parenchyma and the contrasttonoise ratio CNR of hypervascular hepatocellular carcinoma HCC between conventional and SENSE dynamic MRI Thirtyone consecutive patients who were strongly suspected of having HCC were enrolled in our study The subjects consisted of 20 men and 11 women aged 52 years to 79 years mean 668 years Dynamic MRI was performed for each patient with SENSE SENSE MRI and without SENSE conventional MRI on separate days For the quantitative analysis the liver SNR and the lesion–liver CNR of 25 hypervascular HCCs detected on both conventional and SENSE dynamic MRI were measured The liver SNR of the arterial phase and the portal venous phase was 841±247 and 1047±343 respectively in conventional MRI while it was 629±195 and 445±182 respectively in SENSE MRI SENSE MRI showed a statistically significantly lower SNR than conventional MRI P001 The lesion–liver CNR was 263±159 in conventional MRI and 390±196 in SENSE MRI The lesion–liver CNR in SENSE MRI was significantly higher than in conventional MRI P001 The SNR in SENSE MRI is significantly lower than in conventional MRI although the lesion CNR is significantly higher than in conventional MRI
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