弥散法MR膝关节造影在半月板损伤诊断中的研究

目的:用弥散法MR膝关节造影对半月板撕裂进行检查,探讨其临床应用价值。方法:检查48例临床怀疑半月板撕裂的膝关节,采用常规MR检查扫描,然后进行弥散法膝关节造影检查。再经关节镜或手术证实,将常规扫描结果、弥散法关节造影结果与手术结果对照,分别统计常规扫描结果和弥散法结果的诊断符合率。结果:弥散法膝关节造影可使半月板撕裂处信号强级明显高于平扫时的信号,同时检查的诊断符合率从52.6%提高到78.9%。结论:弥散法膝关节造影在半月板撕裂检查上,从图像质量到检查的诊断符合率均优于常规MR检查。

Correlation of MR Dispersion Arthrography in Meniscus Tear of Knee

Objective To study the clinical application value of MR dispersion arthrography in meniscus tear of keen.Methods The conventional MR scans of 48 knee joins in 48 patients who were considered to have meniscus tear were performed and followed by MR dispersion arthrography.All cases were approved by arthroscope or operation.The results of both convention MR scan and MR arthrography were compared with arthroscope and operation.The sensitivity and the specificity and the specificity of plain MR scan and MR dispersion scan were evaluated respectively.Results The signal intensity in the area of meniscus tear was obviously highen on MR dispersion scan than that of MR plain scan.The diagnosis rate was improved from 52.6% to 78.9%.Conclusions MR dispersion scan is superior to convertion MR scan in image quality and diagnosis rate in detecting meniscus tear.