Ces radiol. 2025, 79(4):317-326 | DOI: 10.55095/CesRadiol2025/028

O-RADS MRI score for assessment of adnexal massesOriginal article

Mohsen Gomaa Hassan Ismail1, Rasha Salah-Eldin Hussien1, Basant Mohamed Raief Mosaad1, Arwa Adel Mahmoud Hendy2
1 Department of Radiodiagnosis, Faculty of Medicine, Ain Shams University, Cairo, Egypt
2 Department of Radiodiagnosis, Faculty of Medicine, Ain Shams University, Abbaseya, Cairo, Egypt Correspondence address:

Objective: Validate the O-RADS MRI in risk stratification of adnexal masses and to assess applicability of its use in daily practice regardless the experience of the reader.

Methods: Our study carried out from November 2021 to May 2023, Fifty female patients with adnexal masses, aged 17 to 70 years (mean ± SD of 32.94 ± 6.26), underwent pelvic ultrasound followed by pelvic MRI with dynamic contrast enhancement.  Results: The addition of DWI to the conventional MRI increased the sensitivity, accuracy, it was also useful in the characterization of ovarian masses with sensitivity and specificity over 90%. We assessed each ovarian lesion qualitatively regarding the type of curve and then we measured the semi-quantitative parameters for each lesion by differentiation between Benign vs. Malignant with the sensitivity was 100%, specificity 100%, PPV 100% and NPV was 100% and accuracy 100%, there was a excellent accuracy and between the borderline vs. Malignant with the sensitivity was 80%, specificity 100%, PPV 100% and NPV was 81.8% and accuracy 89.5% that was a good accuracy.  Conclusion: DCE is useful in the characterization of ovarian masses. Assessing ovarian lesions regarding the type of curve the semi-quantitative parameters are considered prognostic tools for differentiation between Benign vs. Malignant.

Keywords: O-RADS MRI, Adnexal Masses, Ovarian Tumors, Risk Stratification, Dynamic Contrast Enhancement (DCE-MRI).

Received: July 19, 2025; Revised: July 19, 2025; Accepted: September 8, 2025; Published: January 1, 2026  Show citation

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Gomaa Hassan Ismail M, Salah-Eldin Hussien R, Mosaad BMR, Hendy AAM. O-RADS MRI score for assessment of adnexal masses. Ces radiol. 2025;79(4):317-326. doi: 10.55095/CesRadiol2025/028.
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