Sonographic and MRI features of ovarian torsion

摘要

Purpose This study aimed to determine the different sonographic and MRI findings in surgically proven cases of ovarian torsion. Patients & method The study retrospectively enrolled 14 incidences of surgically confirmed ovarian torsion. All patients had underwent US and MRI examination preoperatively. Retrospective review of patients’ radiological images and reports was conducted looking for the presence of imaging features of ovarian torsion. Results The most common findings in US and MRI were edematous enlarged ovary with peripherally displaced follicles and pelvic collection. Other common MR features included abnormal poor ovarian enhancement. MRI also appeared to be useful in detection of tube thickening and twisted pedicle which had different patterns increasing the reliability of ovarian torsion diagnosis. Conclusion It is critical to be familiar with ovarian torsion manifestations on the different imaging modalities in order to expeditiously arrive to its diagnosis. The most common findings in US and MRI were edematous enlarged ovary with peripherally displaced follicles and pelvic collection. Other common MR features included abnormal poor ovarian enhancement. Also it appeared to be useful in detection of tube thickening and twisted pedicle which had different patterns increasing the reliability of ovarian torsion diagnosis.