Shin Kyung Eun, Park Byung Kwan, Kim Chan Kyo, Bae Duk Soo, Song Sang Yong, Kim Bohyun
Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Acta Radiol. 2011 Sep 1;52(7):818-24. doi: 10.1258/ar.2011.100426. Epub 2011 Jul 8.
Magnetic resonance imaging (MRI) has been frequently used to determine a preoperative treatment plan for gynecologic cancers. However, the MR accuracy for staging an endometrial cancer is not satisfactory based on the old FIGO staging system.
To evaluate MR accuracy for staging endometrial cancer using the new FIGO staging system.
Between January 2005 and May 2009, 199 women underwent surgery due to endometrial cancer. In each patient, an endometrial cancer was staged using MR findings based on the old FIGO staging system and then repeated according to the new FIGO staging system for comparison. Histopathologic findings were used as a standard of reference.
The accuracy of MRI in the staging of endometrial carcinoma stage I, II, III, and IV using the old FIGO staging system were 80% (159/199), 89% (178/199), 90% (179/199), and 99% (198/199), respectively, compared to 87% (174/199), 97% (193/199), 90% (179/199), and 99% (198/199), respectively, when using the new FIGO staging criteria. The overall MR accuracy of the old and new staging systems were 51% (101/199) and 81% (161/199), respectively.
MRI has become a more useful tool in the preoperative staging of endometrial cancers using the new FIGO staging system compared to the old one with increased accuracy.
磁共振成像（MRI）已被频繁用于确定妇科癌症的术前治疗方案。然而，基于旧的国际妇产科联盟（FIGO）分期系统，MRI对子宫内膜癌分期的准确性并不令人满意。
使用新的FIGO分期系统评估MRI对子宫内膜癌分期的准确性。
2005年1月至2009年5月，199名因子宫内膜癌接受手术的女性。对每位患者，根据旧的FIGO分期系统，利用MRI检查结果对子宫内膜癌进行分期，然后再根据新的FIGO分期系统重复进行分期以作比较。组织病理学检查结果作为参考标准。
使用旧的FIGO分期系统时，MRI对子宫内膜癌I期、II期、III期和IV期的分期准确率分别为80%（159/199）、89%（178/199）、90%（179/199）和99%（198/199）；而使用新的FIGO分期标准时，相应分期准确率分别为87%（174/199）、97%（193/199）、90%（179/199）和99%（198/199）。旧分期系统和新分期系统的总体MRI准确率分别为51%（101/199）和81%（161/199）。
与旧的FIGO分期系统相比，使用新的FIGO分期系统时，MRI在子宫内膜癌术前分期中成为了一种更有用的工具，准确性有所提高。
