Böni R A, Hutter B E, Trinkler F, Jochum W, Pestalozzi D, Krestin G P
Departement für Medizinische Radiologie, Universitätsspital Zürich.
Rofo. 1996 Aug;165(2):152-8. doi: 10.1055/s-2007-1015731.
The diagnostic value of endorectal magnetic resonance imaging (MRI) in comparison to clinical information and other imaging modalities was analysed in order to define the most accurate preoperative staging method.
54 patients with biopsy proven prostate carcinoma, who underwent subsequent prostatectomy, were examined with an endorectal surface coil. The results were compared to body coil MRI, digital rectal examination and prostate specific antigen levels. In 37 patients, results of endorectal ultrasound were available.
Staging accuracy, sensitivity and specificity of endorectal coil MRI were 83.3%. For body coil MRI, staging accuracy was 59.2%, sensitivity 43.3% and specificity 82.6%, for transrectal ultrasound 59.5%, 36.4% and 91.7% and for the digital rectal examination 55.6%, 26.7% and 91.7%, respectively. Staging accuracy of endorectal MRI was significantly (p < 0.05) superior to that of the other imaging modalities.
Endorectal coil MRI allows reliable distinction between localised and advanced tumour stages and is superior to other imaging techniques in this regard. It can thus be recommended for staging in patients with prostate carcinoma.
分析直肠内磁共振成像（MRI）相较于临床信息及其他成像方式的诊断价值，以确定最准确的术前分期方法。
对54例经活检证实为前列腺癌且随后接受前列腺切除术的患者，使用直肠内表面线圈进行检查。将结果与体线圈MRI、直肠指检及前列腺特异性抗原水平进行比较。37例患者可获得直肠内超声检查结果。
直肠内线圈MRI的分期准确率、敏感性和特异性分别为83.3%。体线圈MRI的分期准确率为59.2%，敏感性为43.3%，特异性为82.6%；经直肠超声的分期准确率为59.5%，敏感性为36.4%，特异性为91.7%；直肠指检的分期准确率为55.6%，敏感性为26.7%，特异性为91.7%。直肠内MRI的分期准确率显著高于其他成像方式（p < 0.05）。
直肠内线圈MRI能够可靠地区分局限性和进展期肿瘤阶段，在这方面优于其他成像技术。因此，推荐其用于前列腺癌患者的分期。
