PURPOSE: To compare two T1-weighted (T1W) fat-suppressed sequences for 3D breath-hold pre- and postcontrast fat-suppressed T1W imaging of the female pelvis at 3T. MATERIALS AND METHODS: Pelvic MRI scans of 16 female patients were retrospectively identified who were scanned with two 3D breath-hold sequences: 1) a fast spoiled gradient echo sequence with spectral inversion at lipids (SPECIAL) (called 3D FSPGR), and 2) a dual-echo two-point Dixon (DE Dixon) sequence. Contrast between soft tissue and fat, soft tissue and fluid, and fat and fluid was measured on pre- and postcontrast images. Additionally, two readers subjectively scored the images for degree and homogeneity of fat suppression plus presence and severity of artifacts. RESULTS: Contrast between muscle and myometrium to fat was improved with the Dixon technique (0.61 vs. 0.09 and 0.7 vs. 0.3, respectively, P < 0.001). Both readers agreed that fat suppression was stronger with the Dixon sequence (P < 0.001 and P = 0.06). Artifacts were equivalent (P = 0.53 and 0.65). CONCLUSION: The 3D DE Dixon sequence achieved stronger fat suppression in the female pelvis when compared to a 3D FSPGR sequence with SPECIAL. (c) 2008 Wiley-Liss, Inc.
PURPOSE: To compare two T1-weighted (T1W) fat-suppressed sequences for 3D breath-hold pre- and postcontrast fat-suppressed T1W imaging of the female pelvis at 3T. MATERIALS AND METHODS: Pelvic MRI scans of 16 female patients were retrospectively identified who were scanned with two 3D breath-hold sequences: 1) a fast spoiled gradient echo sequence with spectral inversion at lipids (SPECIAL) (called 3D FSPGR), and 2) a dual-echo two-point Dixon (DE Dixon) sequence. Contrast between soft tissue and fat, soft tissue and fluid, and fat and fluid was measured on pre- and postcontrast images. Additionally, two readers subjectively scored the images for degree and homogeneity of fat suppression plus presence and severity of artifacts. RESULTS: Contrast between muscle and myometrium to fat was improved with the Dixon technique (0.61 vs. 0.09 and 0.7 vs. 0.3, respectively, P < 0.001). Both readers agreed that fat suppression was stronger with the Dixon sequence (P < 0.001 and P = 0.06). Artifacts were equivalent (P = 0.53 and 0.65). CONCLUSION: The 3D DE Dixon sequence achieved stronger fat suppression in the female pelvis when compared to a 3D FSPGR sequence with SPECIAL. (c) 2008 Wiley-Liss, Inc.
Authors: Andrew B Rosenkrantz; Hersh Chandarana; Nicole Hindman; Fang-Ming Deng; James S Babb; Samir S Taneja; Christian Geppert Journal: Eur Radiol Date: 2013-06-12 Impact factor: 5.315
Authors: Hee Kyung Kim; Diana M Lindquist; Suraj D Serai; Yogesh K Mariappan; Lily L Wang; Arnold C Merrow; Kiaran P McGee; Richard L Ehman; Tal Laor Journal: Radiol Clin North Am Date: 2013-07 Impact factor: 2.303
Authors: Andrew B Rosenkrantz; Christian Geppert; Robert Grimm; Tobias K Block; Christian Glielmi; Li Feng; Ricardo Otazo; Justin M Ream; Melanie Moccaldi Romolo; Samir S Taneja; Daniel K Sodickson; Hersh Chandarana Journal: J Magn Reson Imaging Date: 2014-05-16 Impact factor: 4.813