Abstract
Objective To investigate the value of MSCTA in diagnosing the origin of abdominal ectopic ovarian tumor. Methods Twenty-eight patients with 30 ectopic ovarian tumors that mainly manifested as abdominal lumps were evaluated with MSCTA retrospectively. Vascular three-dimensional reconstruction by VR based on add vessel (AV) and MIP was performed for all these patients after MSCT scanning.The origin of these tumors was judged by the feeding artery and ovarian vascular pedicle (OVP) sign.The result was compared with surgical findings.Results The maximum diameter of the 30 ectopic ovarian tumors ranged from 5.2 to 19.5 cm with an average of 9.3 cm.Of the 30 ectopic ovarian tumors, the ramus ovaricus arteriae uterinae (ROAU) and ovarian artery (OA) were demonstrated in 96.7% (29/30) and 56.7% (17/30) respectively.The feeding artery of the tumor was ROAU (29 cases) or OA (1 case), and OA participated in feeding the tumor in 16 cases.The accuracy rate of diagnosis of ectopic ovarian tumors according to the feeding artery was 100% (30/30).According to OVP the accuracy rate was 85.2% (23/27) with an incidence of 76.7% (23/30).Conclusion By showing ROAU and OA as the feeding artery and ovarian vein (OV) as the draining vein, MSCTA can accurately diagnose ectopic ovary tumors in the abdomen. Key words: Ovarian neoplasms; Tomography,X-ray computed
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