机构：[1]Radiology Department, Xuanwu Hospital, Capital Medical University, Beijing, China.放射科首都医科大学宣武医院[2]Department of Biomedical Engineering, Wayne State University, Detroit, Michigan, USA.[3]School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada.[4]Department of Radiology, Wayne State University, Detroit, Michigan, USA.[5]The MRI Institute for Biomedical Research, Detroit, Michigan, USA
Purpose: To demonstrate a novel contrast mechanism for imaging the vessel wall and vessel wall calcification using susceptibility-weighted imaging (SWI). Materials and Methods: Eighteen subjects were imaged with multidetector computed tomography (MDCT) and high-resolution SWI at 3T. The S I in aging parameters Were optimized to allow-for the best visualization of the femoral artery lumen and the arterial wall in magnitude and phase images, respectively. SWI-filtered phase data were used, to evaluate the diamagnetic susceptibility of vessel,wall and of putative vessel wall calcification. Imaging was performed using TE = 15.6 msec (in-phase for fat); TR = 25 msec, flip angle (FA) = 10 degrees, bandwidth (BW) = 80 Hz/pixel, resolution = 0.15, X 0.5 mm in-plane and 1.0 mm through-plane, an acquisition matrix of 512 x 384 x 64 (for read, phase, and slice-select directions), and a total scan time of 8 minutes. Results: Nineteen calcfications were identified in CT and SWI and they correlated well in both size and position. The contrast to-noise ratio between the Wood si gnat in the lumen of the artery and arterial wall was 11.7:1 and 7.4:1 in magnitude and in phase, images, respectively. Conclusion: SWI provides a novel means to visualize vessel wall and recognize the presence of calcification.
基金：
Contract grant sponsor: National Institutes of Health; Contract grant number: 2R01HL 62983-04;
Contract grant sponsor: State of Michigan; Contract grant number: 085P5200251; Siemens research contract.
第一作者机构：[1]Radiology Department, Xuanwu Hospital, Capital Medical University, Beijing, China.
通讯作者：
通讯机构：[*]Wayne State University, MR Research Facility, Department of Radiology, HUH—MR Research G030/ Radiology, 3990 John R Road, Detroit, MI 48201.
推荐引用方式(GB/T 7714)：
Qi Yang,Jiantao Liu,Samuel R.S. Barnes,et al.Imaging the Vessel Wall in Major Peripheral Arteries Using Susceptibility-Weighted Imaging[J].JOURNAL OF MAGNETIC RESONANCE IMAGING.2009,30(2):357-365.doi:10.1002/jmri.21859.
APA：
Qi Yang,Jiantao Liu,Samuel R.S. Barnes,Zhen Wu,Kuncheng Li...&E. Mark Haacke.(2009).Imaging the Vessel Wall in Major Peripheral Arteries Using Susceptibility-Weighted Imaging.JOURNAL OF MAGNETIC RESONANCE IMAGING,30,(2)
MLA：
Qi Yang,et al."Imaging the Vessel Wall in Major Peripheral Arteries Using Susceptibility-Weighted Imaging".JOURNAL OF MAGNETIC RESONANCE IMAGING 30..2(2009):357-365
