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Abstract #1385

Deep Venous Thrombosis: Diagnostic Value of Non-Contrast-Enhanced MR Venography Using Electrocardiography-Triggered Three-Dimensional Half-Fourier FSE

Atsushi Ono1,2, Kenya Murase1, Toshitaka Taniguchi3, Osamu Shibutani4, Satoru Takata2, Yasuyuki Kobashi2, Yusuke Hashiguchi2, Mitsue Miyazaki5,6

1Medical Physics and Engineering, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan; 2Medical Technology, Kousei Hospital, Okayama, Japan; 3Kawasaki Medical School Kawasaki Hospital, Okayama, Japan; 4Kurashiki Riverside Hospital, Kurashiki, Okayama, Japan; 5Toshiba Medical Research Institute, Vernon Hills, IL, United States; 6Toshiba Medical Systems Corp, Otawara, Tochigi, Japan

The diagnostic accuracy of non-contrast-enhanced MR venography using both the flow-refocused fresh-blood imaging (FR-FBI) and the swap phase-encode arterial double-subtraction elimination (SPADE) techniques for detecting deep vein thrombosis (DVT) were prospectively assessed and compared using conventional X-ray venography as the reference standard. Thirty-two consecutive patients suspected of having DVT, examined using conventional X-ray venography, underwent MR FR-FBI and SPADE. Two radiologists independently assessed the non-contrast MR venograms for presence and the sensitivities for diagnosing thrombus were 100% for both reviewers. The specificities were 100% and 99.6% and the interobserver agreement was almost perfect ( = 0.92).