Contrast-enhanced ultrasonic diagnosis of ovarian fibromas

Objective: To explore the enhancement features and clinical value of CEUS in diagnosis of ovarian fibromas. Methods: Totally 46 patients with ovarian fibromas confirmed by pathology underwent CEUS, and the CEUS features, including arrival time, enhancement level, distribution of contrast media and the phase change of enhancement level were observed. The diagnostic accuracy of CEUS for ovarian fibromas was analyzed. Results: Among 46 cases, tumors in 2 cases(2/46, 4.35%) did not enhance, while in 44 cases enhanced, and the arrival time of ovarian fibromas were obviously later than myometrium ([15.87±2.79]s vs [12.01±2.75]s, t=2.87, P<0.05). In early phase, tumors in 35 cases (35/44, 79.55%) demonstrated hypo-enhancement, in 9 cases (9/44, 20.45%) demonstrated iso-enhancement or hyper-enhancement. In the later phase, tumors in 44 cases (44/44, 100%) demonstrated hypo-enhancement. Tumors in 33 cases (33/44, 75.00%) showed diffuse homogeneous enhancement on CEUS. The diagnostic accuracy of CEUS for ovarian fibroma was 89.13% (41/46). Conclusion: Ovarian fibroma has characteristic CEUS features, which may provide information for differential diagnosis. Copyright © 2013 by the Press of Chinese Journal of Medical Imaging Technology.