Application Value Of MRI With Sliding Multislice Technique For Ovarian Carcinoma Staging

Objective: To analyze the technical characteristics of sliding multislice magneticresonance imaging (SMS-MRI), and to evaluate the value of ovarian carcinomastaging by SMS-MRI.Methods: Fifteen patients with ovarian carcinoma were performed both multislice CT(MSCT) and SMS-MRI scan before operation. Scanning range included thoraciccavity, abdominal cavity and pelvic cavity (from superior aperture of thorax to bottomof pelvic). Routine scan and enhanced scan were performed with 64 rows spiral CT.Main sequences of SMS-MRI were T₂WI TSE, SMS TIRM and SMS FLASH 2Denhanced T₁WI. The imagines of MSCT and SMS-MRI were analyzed by tworadiologists using a randomized, single-blind method, and staged according to FIGO'sclassification. The diagnosis results were compared with operative and pathologicalfindings. Main outcome measures: (1)location of tumor; (2) local infiltration(involvement of uterus and fallopian tube or other pelvic tissues); (3)peritoneummetastasis; (4)lymph node metastasis; (5)distal metastasis.Results. In all patients, 9 cases of serous cystadenocarcinoma, 2 cases of mucouscystoadenocarcinoma, 2 cases of endometrioid carcinoma, 1 case of clear-cellcarcinoma and 1 case of granular cell carcinoma were proved by pathology. There were 0 case of stageâ… , 2 cases of stageâ…¡, 10 cases of stageâ…¢and 3 cases of stageâ…£. Compared with the pathological findings, the accuracy of total staging ofSMS-MRI was 100% (15/15), and that of MSCT was 87% (13/15). The signs oftumor location, involvement of uterus and fallopian and distal metastasis wereaccurately showed by both MSCT and SMS-MRI. Accuracy of SMS-MRI was higherthan MSCT for diagnosis of involvement of other pelvic tissues, peritoneummetastasis and lymph nodes metastasis.Conclusion: SMS-MRI can finish one-off body scan in shorter time and provide goodquality imagines. SMS-MRI is a alterative method of imaging diagnosis for ovariancarcinoma staging.