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  • Title: [Value of magnetic resonance imaging in preoperative staging of endometrial carcinoma according to International Federation of Gynecology and Obstetrics (2009) staging criteria].
    Author: Du L, Lei Y, Li D, Qiu X, Liang B.
    Journal: Nan Fang Yi Ke Da Xue Xue Bao; 2012 Jun; 32(7):1048-51. PubMed ID: 22820597.
    Abstract:
    OBJECTIVE: To analyze the magnetic resonance imaging (MRI) features of endometrial carcinoma and their value in endometrial carcinoma staging according to the International Federation of Gynecology and Obstetrics (FIGO 2009) staging criteria. METHODS: Fifty-four patients with pathologically confirmed endometrial carcinoma and complete clinical data underwent preoperative MRI examination. According to FIGO 2009 staging criteria of endometrial carcinoma, the MRI features of the tumor lesions were evaluated for assessment of myometrial invasion and cervical involvement and preoperative staging. RESULTS: The 54 cases included 27 stage Ia cases, 9 stage Ib cases, 10 stage II cases, 5 stage III cases, and 3 stage IV cases. The total lesion display rate by MRI was 94% (51/54). With an isointensity or hypo-intensity on T1WI, the tumor lesions showed a moderate hyper-intensity on T2WI. In enhanced MRI scanning, the lesions showed a moderate heterogeneous enhancement, which had a lower intensity than the marked enhancement of the myometrium. Combination of T2WI and T1WI in fat suppression sequence enhanced scan had a diagnostic accuracy of 91% (49/54) for myometrial invasion, and the sensitivity, specificity and accuracy of MRI for detecting cervical involvement were 77%, 89%, and 83%, respectively. The accuracy of preoperative MRI-based staging of endometrial carcinoma was 89% (48/54), showing no significant difference from the results of postoperative FIGO 2009 staging and pathological examination (P>0.05). CONCLUSION: MRI has a high accuracy in the diagnosis, evaluation of myometrial and cervical invasion depth, and preoperative staging of endometrial carcinoma, and serves as an important modality in assisting clinical decisions on the optimal therapeutic protocols and in prognostic estimation.
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