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

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 en...

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Bibliographic Details
Published in:Acta radiologica (1987) 2011-09, Vol.52 (7), p.818-824
Main Authors: Shin, Kyung Eun, Park, Byung Kwan, Kim, Chan Kyo, Bae, Duk Soo, Song, Sang Yong, Kim, Bohyun
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Biological and medical sciences
Endometrial Neoplasms - pathology
Endometrial Neoplasms - surgery
Female
Female genital diseases
Gynecology. Andrology. Obstetrics
Humans
Hysterectomy
Magnetic Resonance Imaging - methods
Medical sciences
Middle Aged
Neoplasm Staging - methods
Predictive Value of Tests
Retrospective Studies
Sensitivity and Specificity
Tumors
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Summary: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.
ISSN:0284-1851
1600-0455
DOI:10.1258/ar.2011.100426