应用MR 仿真内镜诊断膝半月板病变

目的研究半月板ＭＲ仿真内镜（ＭＭＲＶＥ）在诊断膝关节Ｓｔｏｌｌｅｒ分级３级半月板损伤中的临床应用价值和方法。方法５９例采用快速自旋回波序列（ＦＳＥ），获得了质子密度像，Ｔ２加权像；８例应用马根维显（Ｍａｇｅｎｖｉｓｔ）膝关节造影ＭＲＩ获得ＦＳＥ序列Ｔ１加权像。应用工作站对图像数据进行ＭＭＲＶＥ重建。结果本组ＭＭＲＶＥ的敏感度９６％，准确度９３％，特异度７３％。ＭＭＲＶＥ可以显示常规ＭＲＩ上难以显示

Diagnostic of Meniscal Tears of Knee Using Magnetic Resonance Virtual Endoscopy

Objective To investigate the methods of examination,value of clinical application of meniscal magnetic resonance virtual endoscopy (MMRVE)for Stoller grade 3 meniscal tears. Methods 59 cases introduced fast spin echo (FSE) sequences,proton density imaging and T-2 weighted imaging,8 cases introduced T-1 weighted imaging after knee joint arthrography with contrast (Magenvist)injection.The workstation and software is GE AW and Navigator,which was used to become the row images to three|dimension virtual endoscopic imaging. Results MMRVE can reveal meniscal focal reversal,strained of free edge,surface erosion,separated horn and broken horn.MMRVE can explain complex meniscal tears (included bucket|handle tears) entirely,those are difficult to reveal on traditional 2D MR imaging.The accuracy,sensitivity and specificity of MMRVE are 93%,96% and 73% respectively.It is quite useful to detect free bodies in amount and position. Conclusion It is a available and reliable means to diagnose meniscal tears using MMRVE. [