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为了通过多变量分析,确定哪些MR图像特征对前列腺癌囊外延伸是最有预见性的。对77例经前列腺根治术和病理证实的前列腺癌病人于术前进行了直肠内相控阵线圈MRI,包括横断面T_1WI、T_2WI以及冠状位MRI。所有图像由三位独立的阅片者回顾性地分析,其中阅片者1最有经验,阅片者2次之,阅片者3再次之。根据以往MR文献,拟定5种特异性发现高度预示囊外延伸:①广泛的肿瘤接触
For multivariate analysis, it was determined which MR image features were most predictive of extracapsular extension of prostate cancer. A total of 77 patients with prostate cancer who underwent radical prostatectomy and pathologically confirmed prostate cancer underwent rectal internal phased-array MRI, including transverse T_1WI, T_2WI, and coronal MRI. All images were retrospectively analyzed by three independent readers, of whom reader 1 was the most experienced, reader 2 was second, and reader 3 was again. Based on the previous MR literature, the development of five specific findings is highly predictive of extracapsular extension: 1 extensive tumor contact