Diagnostic Efficacy of Sonography for Diagnosis of Ovarian Torsion

Background: the aim was to determine the diagnostic accuracy of sonography for ovarian torsion.materials and methods: in this analytic descriptive study, 323 women with suspected ovarian torsion underwent a transabdominal sonography. findings of sonography were compared with laparatomy.results: the ultrasound correctly diagnosed 72.1% of ovarian torsion cases and missed 27.9% of these cases (false negatives). there was a strong correlation between sonography and surgery with a kappa value of 84.0%. the sensitivity and specificity of sonography for diagnosing ovarian torsion were determined 72.1% and 99.6%, respectively. also, sonography had a positive predictive value (ppv) of 96.9%, a negative predictive value (npv) of 95.9%, and a total accuracy of 96.0% for detection of ovarian torsion.conclusion: sonography is excellent to evaluate patients with suspected ovarian torsion. abnormal blood flow is highly predictive of ovarian torsion.