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Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
Published on: April 17, 2019
Optimizing the MRI Pelvis Protocol for O-RADS MRI
Angela Tong1, Nancy Kim2, Krupa Patel-Lippmann3
1Department of Radiology, New York University Grossman School of Medicine, 660 First Ave, 3rd Fl, New York, NY, 10016.
Summary
Magnetic Resonance Imaging (MRI) with the Ovarian-Adnexal Reporting and Data System (O-RADS) MRI protocol improves adnexal lesion characterization. Adhering to the recommended MRI protocol ensures accurate cancer risk assessment and guides clinical management.
Area of Science:
- Radiology
- Gynecologic Imaging
- Oncology
Background:
- Ultrasound (US) imaging of adnexal lesions often requires further characterization with MRI for accurate cancer risk assessment.
- MRI aids in differentiating benign from malignant adnexal lesions, optimizing patient management by expediting referrals or avoiding unnecessary interventions.
- The Ovarian-Adnexal Reporting and Data System (O-RADS) MRI was developed to standardize terminology and improve cancer risk prediction.
Purpose of the Study:
- To review the essential sequences within the recommended O-RADS MRI protocol for adnexal lesion assessment.
- To provide practical guidance on optimizing MRI sequences, mitigating artifacts, and avoiding interpretation errors.
- To emphasize the importance of adhering to the protocol for reliable risk stratification.
Main Methods:
- Review of the Ovarian-Adnexal Reporting and Data System (O-RADS) MRI recommended protocol.
- Discussion of multiplanar T2-weighted imaging, diffusion-weighted imaging, in- and opposed-phase imaging, and dynamic contrast-enhanced imaging.
- Inclusion of optimization techniques, artifact negation, and common error avoidance strategies.
Main Results:
- Accurate risk stratification of adnexal lesions is achievable through optimization of each MRI sequence.
- Adherence to the minimum technical requirements, including dynamic contrast-enhanced imaging, is crucial for obtaining reliable O-RADS MRI predictive values.
- Understanding the role of each sequence in assessing lesion characteristics is vital for accurate risk scoring.
Conclusions:
- The O-RADS MRI protocol, when implemented with optimal sequences and dynamic contrast enhancement, enables precise risk stratification of adnexal lesions.
- This standardized approach facilitates appropriate clinical decision-making, impacting surgical planning and follow-up strategies.
- The article serves as a guide for radiologists to enhance image quality and interpretation accuracy in adnexal lesion MRI.
