[Preoperative staging of patients with primary ovarian carcinoma by CT and MRI].
OBJECTIVE
To investigate values and limitations of CT and MRI applied in staging of patients with primary ovarian carcinoma (POC).


METHODS
Forty two patients with POC proven by radical surgery, laparotomy, and postoperative pathology were studied. In comparison to surgical and pathological findings, sensitivity, specificity, and accuracy of CT, MRI and CT plus MRI were calculated. Staging by the three imaging methods was obtained according to FIGO's classification.


RESULTS
CT and MRI showed higher accuracy in evaluation of invasion to uterus (89.5% and 94.7%) and disease of Douglas pouch (94.7% and 97.4%). CT was to some extent superior to MRI in assessing ipsilateral or bilateral tumor and lesions related to peritoneal seeding; MRI, however, had better capability of diagnosing invasion to ovarian capsule, pelvic organs excluding bowel, nodules in Douglas pouch, and metastasis to lymph nodes. The overall accuracy of staging by CT, MRI, and CT plus MRI was 73.7%, 68.4%, and 70.6%, respectively (P > 0.05).


CONCLUSIONS
CT and MRI are useful imaging modalities in staging of POC, but low sensitivity for detecting involvement in some anatomic regions needs to be improved.
Zhu
Q
Q
Department of Radiology, School of Oncology, Beijing Medical University, Beijing 100036.
Yoshikawa
H
H
Fujita
N
N
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009367:Neoplasm Staging; D010051:Ovarian Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed