3D-SPACE序列在胰胆管成像中的应用研究  

Application of 3D-SPACE sequence in cholangiopancreatography

作　　者：黄龙全[1] 许梅海[1] 申炜[1] 韦洁勤 潘洋洋[1] 卢平明 HUANG Longquan;XU Meihai;SHEN Wei;WEI Jieqin;PAN Yangyang;LU Pingming(Department of MRI,the First People＇s Hospital of Nanning,Nanning 530022,Chin)

机构地区：[1]南宁市第一人民医院磁共振科,广西南宁530022

出　　处：《实用放射学杂志》2018年第8期1271-1273,共3页Journal of Practical Radiology

摘　　要：目的探讨三维可变反转角快速自旋回波（3D-SPACE）序列在胰胆管成像中的应用价值，对比分析3D-SPACE序列和三维快速自旋回波（3DTSE）序列在磁共振胰胆管成像（MRCP）图像质量的差异。方法50例行MRCP检查的患者分别采用3D-SPACE序列和3D-TSE序列成像。对2种序列的采集时间和图像质量进行统计学分析，比较2种扫描方法的优缺点。结果3D-SPACE序列采集时间为（155．22±32．37），3D-TSE序列采集时间为（265．78±70．29）s，2种序列间差异有统计学意义（t=15．95，P=0.000）。3D-SPACE序列4分图像42例，占84％（42／50）；3分图像6例，占12％（6／50）；2分图像2例，占4％（2／50）。3D-TSE序列4分图像22例，占44％（22／50）；3分图像15例，占30％（15／50）；2分图像9例，占18％（9／50）；1分图像4例，占8％（4／50）。2种序列间差异有统计学意义（Z=4．92，P=0.000）。结论相比3D-TSE序列，3D-SPACE序列成像质量更好，采集时间减少41．60％，提高工作效率。Objective To discuss the application of 3D sampling perfection with application optimized contrasts using different flip angle evolution （3D-SPACE） sequence in cholangiopancreatography and to compare the image quality of magnetic resonance cholangiopancreatography （MRCP） between 3D-SPACE and the 3D fast spin echo sequence （3D-TSE）.Methods Fifty patients underwent MRCP with 3D-SPACE and 3D-TSE, respectively. Image quality and acquisition time were compared statistically between the two scanning methods.Results The acquisition time was （155.22±32.37） s for 3D-SPACE and （265.78±70.29} s for 3D-TSE respectively,and the difference was statistically significant （t = 15.95,P = 0.000）.When the image quality was scored from grade 1 to 4, the 3D-SPACE sequence obtained the images with grade 4 in 42 cases （84 % ） , grade 3 in 6 cases （ 12 % ） and grade 2 in 2 cases （4 % ） , meanwhile the 3D-TSE sequence obtained the images with grade 4 in 22 cases （44%） ,grade 3 in 15 cases （30%） , grade 2 in 9 cases（18% ） and grade 1 in 4 cases（8%） ,which showed a statistically significant difference between two groups （Z=4.92,P =0.000）.Conclusion The imaging quality of MRCP using 3D-SPACE sequence is better than that using 3D-TSE sequence,and the acquisition time of the former can be reduced by 41.60% when compared with the latter,which may improve the efficiency.

关 键 词：磁共振胰胆管成像 三维可变反转角快速自旋回波 三维快速自旋回波 

分 类 号：R445.2[医药卫生—影像医学与核医学] R322.48[医药卫生—诊断学]