2D与3D MR快速自旋回波序列对膝关节交叉韧带及半月板损伤的诊断价值比较

发布时间：2018-01-30 02:25

本文关键词： 膝关节韧带半月板损伤磁共振成像　出处：《放射学实践》2017年01期 　论文类型：期刊论文

【摘要】：目的:比较三维快速自旋回波(3DSPACE)序列与传统二维快速自旋回波(2DPDWI)序列对膝关节交叉韧带和半月板损伤的诊断价值。方法:75例膝外伤患者行常规3个平面2DFS PDWI序列及3DFS PD-SPACE序列检查,检查时间分别为9分48秒和6分6秒。由2位高年资医师共同对2组图像质量进行主观评分,并在术前独立对交叉韧带和半月板的损伤情况进行评价。结果:3DFS PD-SPACE序列组的主观评分低于2DFS PDWI序列组(Z=-2.59,P0.05)。以关节镜结果为"金标准",2DFS PDWI序列和3DFS PD-SPACE序列诊断前交叉韧带、后交叉韧带、内侧半月板和外侧半月板损伤的敏感度、特异度和准确度相近。判断前交叉韧带损伤程度方面,3DFS PD-SPACE序列与关节镜的吻合度高于2DFS PDWI序列(P0.01)。结论:3DFS PD-SPACE序列检查效率高,诊断膝关节交叉韧带和半月板损伤的价值与常规2D序列相似,能更准确地评估前交叉韧带的损伤程度,具有潜在的临床应用价值;但需进一步优化技术以缩短单次成像时间,减少运动伪影干扰以获得更高的图像质量。
[Abstract]:Objective: to compare 3D fast spin echo 3DS PACE sequence with 2D fast spin echo 2DPDWI). Methods 75 cases of knee trauma were examined by routine 2DFS PDWI sequence and 3DFS PD-SPACE sequence. The examination time was 9 minutes 48 seconds and 6 minutes 6 seconds respectively. The image quality of the two groups was evaluated by two senior doctors. The injury of cruciate ligament and meniscus was evaluated independently before operation. Results the subjective score of PD-SPACE group was lower than that of 2DFS PDWI sequence group (2 DFS PDWI sequence group). ZANG-2.59. According to the results of arthroscopy, the anterior cruciate ligament (ACL) and posterior cruciate ligament (ACL) were diagnosed by "Golden Standard" 2DFS PDWI sequence and 3DFS PD-SPACE sequence. The sensitivity, specificity and accuracy of medial meniscus and lateral meniscus injury were similar. The coincidence between 3DFS PD-SPACE sequence and arthroscopy was higher than that of 2DFS PDWI sequence (P 0.01). Conclusion the detection efficiency of 3DFS PD-SPACE sequence is higher than that of 2DFS PD-SPACE sequence. The diagnostic value of cruciate ligament and meniscus injury of knee joint is similar to that of conventional 2D sequence. It can more accurately evaluate the degree of anterior cruciate ligament injury and has potential clinical application value. However, further optimization techniques are needed to shorten the time of single imaging and reduce the interference of motion artifacts to achieve higher image quality.
【作者单位】：佛山市中医院MRI室;
【基金】：广东省科技厅科技计划项目(2014A020221096)
【分类号】：R686.5;R445.2
【正文快照】： 作者单位:528000广东,佛山市中医院MRI室MRI是诊断膝关节损伤的最佳无创性检查方法,二维(2-diamension,2D)快速自旋回波序列是临床常规应用的传统检查方案,但存在一定的局限性:1对形态复杂或与标准解剖方位呈角度走行的结构难以全程显示;2层厚较厚,容易导致部分容积效应;33个

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