共 27 条
Fast Dixon-Based Multisequence and Multiplanar MRI for Whole-Body Detection of Cancer Metastases
被引:35
作者:
Ma, Jingfei
[1
]
Costelloe, Colleen M.
[2
]
Madewell, John E.
[2
]
Hortobagyi, Gabriel N.
[3
]
Green, Marjorie C.
[3
]
Cao, Guang
Sun, Fei
Kundra, Vikas
[2
]
机构:
[1] Univ Texas MD Anderson Canc Ctr, Dept Imaging Phys, Houston, TX 77030 USA
[2] Univ Texas MD Anderson Canc Ctr, Dept Diagnost Radiol, Houston, TX 77030 USA
[3] Univ Texas MD Anderson Canc Ctr, Dept Breast Med Oncol, Houston, TX 77030 USA
关键词:
whole-body MRI;
cancer metastases;
fast Dixon sequences;
multisequence imaging;
multiplanar imaging;
CELL LUNG-CANCER;
MAGNETIC-RESONANCE;
ENHANCED MRI;
EXPERIENCE;
FEASIBILITY;
WATER;
EFFICIENT;
SECONDS;
PET/CT;
D O I:
10.1002/jmri.21746
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:
Purpose: To develop and demonstrate the feasibility of multisequence and multiplanar MRI for whole-body cancer detection. Materials and Methods: Two fast Dixon-based sequences and a diffusion-weighted sequence were used on a commercially available 1.5 T scanner for whole-body cancer detection. The study enrolled 19 breast cancer patients with known metastases and in multistations acquired whole-body axial diffusion-weighted, coronal T2-weighted, axial/sagittal pre- and postcontrast T1-weighted, as well as triphasic abdomen images. Three radiologists subjectively scored Dixon images of each series for overall image quality and fat suppression uniformity on a 4-point scale (1 = poor, 2 = fair, 3 = good, and 4 = excellent). Results: Eighteen of the 19 patients completed the whole-body MRI successfully. The mean acquisition time and overall patient table time were 46 +/- 3 and 69 +/- 5 minutes, respectively. The average radiologists' scores for overall image quality and fat Suppression uniformity were both 3.4 +/- 0.5. The image quality was consistent between patients and all completed whole-body examinations were diagnostically adequate. Conclusion: Whole-body MRI offering essentially all the most optimal tumor-imaging sequences in a typical 1-hour time slot can potentially become an appealing "one-stop-shop" for whole-body cancer imaging.
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页码:1154 / 1162
页数:9
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