Dubois-Toussaint S, Bertrand A F, Dauver N, Lépinard V, Bertrand G
Centre Paul Papin, Angers.
J Radiol. 1995 Apr;76(4):179-84.
In our study, 50 patients had a prostatic carcinoma stade B. Before the radical prostatectomy we have realised a MRImaging of the prostate. After a precise histopathologic correlation we tried to appreciate the MRI performance for the detection of neoplasic nodes in the peripheral zone and for the loco-regional staging of the carcinoma. In detection of the pathologic nodes, MRImaging is more sensitive from the apex (22.5%) to the base of the prostate (91%), but it is at the same time specificless (apex: 90%, base: 40%). The accurate diagnostic for loco-regional staging in our study is 70%. Extracapsular extension is often underestimated because of the very small size of the invasion. On the other hand the specificity of MRI in seminal vesicles extension is satisfactory (87.5%).
在我们的研究中，50例患者患有B期前列腺癌。在根治性前列腺切除术之前，我们对前列腺进行了磁共振成像（MRI）检查。经过精确的组织病理学对照后，我们试图评估MRI在检测外周带肿瘤性淋巴结以及前列腺癌局部区域分期方面的表现。在检测病理性淋巴结时，MRI从前列腺尖部（22.5%）到基部（91%）的敏感性更高，但同时特异性较低（尖部：90%，基部：40%）。在我们的研究中，局部区域分期的准确诊断率为70%。由于侵犯范围非常小，包膜外侵犯常常被低估。另一方面，MRI在精囊侵犯方面的特异性令人满意（87.5%）。
