Comparison of MRI's Prediction of Myometrial, Cervical Invasion and Surgical Staging in Endometrial Carcinoma

Jeon, Yong Tark; Hwang, Kyu Ri; Kim, Jae Weon; Park, Noh Hyun; Song, Yong Sang; Kang, Soon Beom; Lee, Hyo Pyo

Abstract

OBJECTIVE
The aim of this study was accuracy evaluation of MRI in prediction of myometrial, cervical invasion in endometrial carcinoma by comparing with histopathologic findings and to find causes of inaccurate MRI readings. METHOD: Fifty patients with endometrial carcinoma who were evaluated with MRI imaging prior to surgery were reviewed. And then, we compared MRI findings and histopathologic findings in view of myometrial, cervical invasion.
RESULTS
Overall accuracy of MRI in prediction of myometrial invasion was 48%. Sensitivity/specificity/ PPV/NPV in prediction of no myometrial invasion were 100%/42.9%/42.9%/100% respectively, in prediction of superficial myometrial invasion were 20.0%/86.7%/50.0%/61.9% respectively, in prediction of deep myometrial invasion were 33.3%/94.3%/71.4%/76.7%, respectively. Accuracy in prediction of cervical invasion was 84% and sensitivity/specificity/PPV/NPV were 50.0%/88.6%/37.5%/92.9% respectively. Among the probable causes of inaccurate MRI readings, polypoid tumor occupies large portion.
CONCLUSION
MRI has some value in pre-operative evaluation of patients with endometrial carcinoma. We should cautiously accept the MRI readings when tumor shows polypoid growth.