PMID- 20187203 OWN - NLM STAT- MEDLINE DCOM- 20100609 LR - 20191210 IS - 1522-2586 (Electronic) IS - 1053-1807 (Linking) VI - 31 IP - 3 DP - 2010 Mar TI - Comparison of ferucarbotran-enhanced fluid-attenuated inversion-recovery echo-planar, T2-weighted turbo spin-echo, T2*-weighted gradient-echo, and diffusion-weighted echo-planar imaging for detection of malignant liver lesions. PG - 607-16 LID - 10.1002/jmri.22098 [doi] AB - PURPOSE: To compare the diagnostic accuracy of superparamagnetic iron oxide (SPIO)-enhanced fluid-attenuated inversion-recovery echo-planar imaging (FLAIR EPI) for malignant liver tumors with that of T2-weighted turbo spin-echo (TSE), T2*-weighted gradient-echo (GRE), and diffusion-weighted echo-planar imaging (DW EPI). MATERIALS AND METHODS: SPIO-enhanced magnetic resonance imaging (MRI) that included FLAIR EPI, T2-weighted TSE, T2*-weighted GRE, and DW EPI sequences was performed using a 3 T system in 54 consecutive patients who underwent surgical exploration with intraoperative ultrasonography. A total of 88 malignant liver tumors were evaluated. Images were reviewed independently by two blinded observers who used a 5-point confidence scale to identify lesions. Results were correlated with results of histopathologic findings and surgical exploration with intraoperative ultrasonography. The accuracy of each MRI sequence was measured with jackknife alternative free-response receiver operating characteristic analysis. The sensitivity of each observer with each MRI sequence was compared with McNemar's test. RESULTS: Accuracy values were significantly higher with FLAIR EPI sequence (0.93) than with T2*-weighted GRE (0.80) or DW EPI sequences (0.80) (P < 0.05). Sensitivity was significantly higher with the FLAIR EPI sequence than with any of the other sequences. CONCLUSION: SPIO-enhanced FLAIR EPI sequence was more accurate in the diagnosis of malignant liver tumors than T2*-weighted GRE and DW EPI sequences. SPIO-enhanced FLAIR EPI sequence is helpful for the detection of malignant liver tumors. FAU - Fukukura, Yoshihiko AU - Fukukura Y AD - Department of Radiology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima City, 890-8544, Japan. fukukura@m.kufm.kagoshima-u.ac.jp FAU - Kamiyama, Takuro AU - Kamiyama T FAU - Takumi, Koji AU - Takumi K FAU - Shindo, Toshikazu AU - Shindo T FAU - Higashi, Ryutaro AU - Higashi R FAU - Nakajo, Masayuki AU - Nakajo M LA - eng PT - Comparative Study PT - Evaluation Study PT - Journal Article PL - United States TA - J Magn Reson Imaging JT - Journal of magnetic resonance imaging : JMRI JID - 9105850 RN - 0 (Contrast Media) RN - 0 (Dextrans) RN - 0 (Magnetite Nanoparticles) RN - 0 (Spin Labels) RN - G6N3J05W84 (ferumoxides) RN - XM0M87F357 (Ferrosoferric Oxide) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Contrast Media MH - Dextrans MH - Diffusion Magnetic Resonance Imaging/*methods MH - Echo-Planar Imaging/*methods MH - Female MH - *Ferrosoferric Oxide MH - Humans MH - Image Enhancement/methods MH - Image Interpretation, Computer-Assisted/*methods MH - Information Storage and Retrieval/*methods MH - Liver Neoplasms/*diagnosis MH - Magnetite Nanoparticles MH - Male MH - Middle Aged MH - Reproducibility of Results MH - Sensitivity and Specificity MH - Spin Labels EDAT- 2010/02/27 06:00 MHDA- 2010/06/10 06:00 CRDT- 2010/02/27 06:00 PHST- 2010/02/27 06:00 [entrez] PHST- 2010/02/27 06:00 [pubmed] PHST- 2010/06/10 06:00 [medline] AID - 10.1002/jmri.22098 [doi] PST - ppublish SO - J Magn Reson Imaging. 2010 Mar;31(3):607-16. doi: 10.1002/jmri.22098.