Purpose: To describe contrast enhanced ultrasound (CEUS) characteristics of ovarian torsion in pediatric females, assessing the potential diagnostic advantages of method as well as its limitations.
Materials and methods: A retrospective study design was used. Between January 2018 and December 2020 we analyzed all pediatric females who underwent explorative surgery with a suspected diagnosis of ovarian torsion, and who were previously evaluated by conventional ultrasound (US), color-Doppler ultrasound (CDUS) and CEUS.
Results: We examined twenty pediatric females with a median age of 12 years. US identified 9/20 ovarian complex masses against 13/20 by CEUS. At US abdominal free fluid was shown in 13/20 patients and in 18/20 cases with CEUS. In our case series the evaluation of contrast enhancement at CEUS in the detection of ovarian torsions revealed a sensitivity of 94.1%, a specificity of 100% and an overall accuracy of 95%.
Conclusion: Although there is a known ultrasound semeiotics suggestive of ovarian torsion, it is not always possible to obtain a diagnosis of certainty with conventional US even with CDUS. The study reports that complementation with CEUS showed excellent agreement with surgery obtaining a diagnosis in almost all the pediatric females examined.
Keywords: Color Doppler ultrasound; Contrast enhanced ultrasound; Conventional ultrasound; Ovarian torsion; Pediatric females.
© 2021. Società Italiana di Ultrasonologia in Medicina e Biologia (SIUMB).