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前列腺癌的治疗效果与临床分期密切相关。回顾性分析经MR检查的25例前列腺癌,结果:原发灶中T2WI图像结节性病变占88%(22/25),均为混和信号结节,其中相对低信号结节72.7%,相对高信号结节27.3%。45.5%(10/22)的结书可以判别肿瘤所属的解剖分区。与Whitmore-Jeweet标准的临床分期比较,本组MR分期的总符合率为84%(21/25),区分A/B期与C/D期的敏感性为92%。结合文献本文认为MR诊断A、B期前列腺癌缺乏特异性图像,仅可作为筛选方法之一。MR分期总的可靠性较高,对肿瘤精囊浸润的判断有一定价值,但对镜下包膜侵犯及盆腔淋巴结转移的显像MR仍有局限性。
Prostate cancer treatment and clinical stage are closely related. A retrospective analysis of 25 cases of prostate cancer by MR examination showed that 88% (22/25) of the nodules were found in the T2WI image of the primary tumor, all of which were mixed signal nodules, of which 72.7% , A relatively high signal nodules 27.3%. 45.5% (10/22) of the knot can determine the anatomy of the tumor belongs. Compared with the standard clinical stage of Whitmore-Jeweet, the total coincidence rate of this stage of MR staging was 84% (21/25), and the sensitivity of distinguishing between stage A / B and C / D was 92%. Combined with the literature that the MR diagnosis of A, B prostate cancer-specific images lack, only as a screening method. The overall reliability of MR staging is of high value in judging the infiltration of tumor seminal vesicles, but there are still limitations on the MR imaging of invasion and pelvic lymph node metastasis.