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Acta Radiol. 2011 Sep 1;52(7):818-24. doi: 10.1258/ar.2011.100426. Epub 2011 Jul 8.

MR staging accuracy for endometrial cancer based on the new FIGO stage.

Author information

1
Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.

Abstract

BACKGROUND:

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.

PURPOSE:

To evaluate MR accuracy for staging endometrial cancer using the new FIGO staging system.

MATERIAL AND METHODS:

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.

RESULTS:

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.

CONCLUSION:

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.

PMID:
21742787
DOI:
10.1258/ar.2011.100426
[Indexed for MEDLINE]

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