Diffusion magnetic resonance imaging;
Whole body imaging;
High field;
3;
0;
Tesla;
D O I:
10.1007/s00330-007-0717-8
中图分类号:
R8 [特种医学];
R445 [影像诊断学];
学科分类号:
1002 ;
100207 ;
1009 ;
摘要:
The purpose was to provide a diffusion-weighted whole-body magnetic resonance (MR) imaging sequence with background body signal suppression (DWIBS) at 3.0 Tesla. A diffusion-weighted spin-echo echo-planar imaging sequence was combined with the following methods of fat suppression: short TI inversion recovery (STIR), spectral attenuated inversion recovery (SPAIR), and spectral presaturation by inversion recovery (SPIR). Optimized sequences were implemented on a 3.0- and a 1.5-Tesla system and evaluated in three healthy volunteers and six patients with various lesions in the neck, chest, and abdomen on the basis of reconstructed maximum intensity projection images. In one patient with metastases of malignant melanoma, DWIBS was compared with F-18-fluorodeoxyglucose positron emission tomography (FDG-PET). Good fat suppression for all regions and diagnostic image quality in all cases could be obtained at 3.0 Tesla with the STIR method. In comparison with 1.5 Tesla, DWIBS images at 3.0 Tesla were judged to provide a better lesion-to-bone tissue contrast. However, larger susceptibility-induced image distortions and signal intensity losses, stronger blurring artifacts, and more pronounced motion artifacts degraded the image quality at 3.0 Tesla. A good correlation was found between the metastases as depicted by DWIBS and those as visualized by FDG-PET. DWIBS is feasible at 3.0 Tesla with diagnostic image quality.
机构:
Beth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USABeth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USA
de Bazelaire, CMJ
;
Duhamel, GD
论文数: 0引用数: 0
h-index: 0
机构:
Beth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USABeth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USA
Duhamel, GD
;
Rofsky, NM
论文数: 0引用数: 0
h-index: 0
机构:
Beth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USABeth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USA
Rofsky, NM
;
Alsop, DC
论文数: 0引用数: 0
h-index: 0
机构:
Beth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USABeth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USA
机构:
Univ Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, England
Gibbs, P
;
Pickles, MD
论文数: 0引用数: 0
h-index: 0
机构:
Univ Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, England
Pickles, MD
;
Turnbull, LW
论文数: 0引用数: 0
h-index: 0
机构:
Univ Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, England
机构:
Beth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USABeth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USA
de Bazelaire, CMJ
;
Duhamel, GD
论文数: 0引用数: 0
h-index: 0
机构:
Beth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USABeth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USA
Duhamel, GD
;
Rofsky, NM
论文数: 0引用数: 0
h-index: 0
机构:
Beth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USABeth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USA
Rofsky, NM
;
Alsop, DC
论文数: 0引用数: 0
h-index: 0
机构:
Beth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USABeth Israel Deaconess Med Ctr, Dept Radiol, Ctr Adv Imaging W, Boston, MA 02215 USA
机构:
Univ Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, England
Gibbs, P
;
Pickles, MD
论文数: 0引用数: 0
h-index: 0
机构:
Univ Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, England
Pickles, MD
;
Turnbull, LW
论文数: 0引用数: 0
h-index: 0
机构:
Univ Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, EnglandUniv Hull, Postgrad Med Sch, Div Canc, Ctr MR Investigat, Kingston Upon Hull HU6 7RX, N Humberside, England