Validity of the MRI O-RADS Scoring system in improving diagnostic confidence for adnexal pathologies | ||
| Medicine Updates | ||
| Articles in Press, Accepted Manuscript, Available Online from 02 October 2025 | ||
| Document Type: Original Article | ||
| DOI: 10.21608/muj.2025.423253.1265 | ||
| Authors | ||
| Khaled Abd El-Baky Ahmed1; Asmaa M Yussif2; Mohamed Elrakhawy3; Carmen Ali Zarad* 1; Waleed S Abo Shanab1 | ||
| 1Diagnostic and interventional radiology department, faculty of medicine, Port Said University | ||
| 2Department of radiology Sinbellawin general hospital, Ministry of health, Egypt. | ||
| 3Diagnostic and interventional radiology department, Faculty of medicine Mansoura University | ||
| Abstract | ||
| Background: Ovarian masses represent the most frequent variety of adnexal masses. Characterization of different lesion types is crucial for better management. Aim of study: This study aims to value the diagnostic reliability of the magnetic resonance imaging (MRI)-based ovarian adnexal reporting and data system (O-RADS) scoring in the description and risk stratification of adnexal masses, with the objective of determining its accuracy in differentiating benign from malignant lesions. Patients and methods: This study included adnexal masses which show indeterminate criteria by ultra-sound (US) at different age group. We excluded patients who had contraindications for MRI. Conventional MRI, diffusion, apparent diffusion coefficient (ADC) value and dynamic contrast study were done for all patients. Results: Regarding ORADS categorization of our studied population, 23.9 % were ORADS 2 indicating that they were almost benign, 53.4 % were ORADS 3 indicating low risk malignancy, 13.6% were ORADS 4 indicating intermediate risk malignancy, 9.1 % were ORADS 5 suggesting elevated risk of malignancy. The sensitivity of O-RADS MRI score system for detection of malignancy was 90%, 85 % specificity, 91.2 % positive predictive value, 85 % negative predictive value and accuracy 86.4. Conclusion: Our findings showed that the MRI based ORADS score is a useful tool that differentiates between ambigous benign and malignant adnexal masses. It can be used clinically in cases of sonographic indeterminate ovarian masses to reduce invasive surgeries and preserve fertility. | ||
| Keywords | ||
| Adnexal masses; ORADS; Diffusion; time intensity curve | ||
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