• Koichi Ishiyama, Manabu Hashimoto, Jun-Ichi Izumi, Jiro Watarai, Satoshi Shibata, Tsutomu Sato, and Yuzo Yamamoto.
• Department of Radiology, Akita University School of Medicine, Akita, Japan. kishiyam@doc.med.akita-u.ac.jp
• J Magn Reson Imaging. 2008 Jun 1; 27 (6): 1322-6.

PurposeTo compare respiratory-triggered T2-weighted fast spin-echo (RTT2W-FSE) and gradient T2*-weighted recalled-echo (T2*W-GRE) images for visualization of malignant hepatic tumors using ferucarbotran-enhanced magnetic resonance (MR) imaging.Materials And MethodsFerucarbotran-enhanced RTT2W-FSE and breath-hold long-TE 2D-fast spoiled gradient recalled acquisition in the steady state (FSPGR) images as T2*W-GRE were used to evaluate 128 malignant hepatic tumors (77 metastases, 37 hepatocellular carcinomas, 14 other) in 62 patients. Tumor-to-liver contrast (TLC) was quantitatively compared using the paired Student's t-test, and the score of lesion conspicuity was qualitatively compared using Wilcoxon's signed rank test.ResultsThe mean TLC of RTT2W-FSE was significantly higher than that of FSPGR (1.10 +/- 0.82 vs. 2.54 +/- 1.42) in all malignant tumors. The score of lesion conspicuity of RTT2W-FSE was significantly higher than that of FSPGR (4.84 +/- 0.52 vs. 4.52 +/- 0.99) in all malignant tumors.ConclusionFor ferucarbotran-enhanced MR imaging, compared to FSPGR images, RTT2W-FSE images provide greater TLC and subjective conspicuity for malignant tumors.2008 Wiley-Liss, Inc

38 keywords...

hide…