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Updated: Jul 13, 2026

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
Published on: April 17, 2019
Artifacts and pitfalls in MR imaging of the pelvis
Khashayar Rafat Zand1, Caroline Reinhold, Masoom A Haider
1Department of Diagnostic Radiology, Montreal General Hospital, McGill University Health Center, Montreal, Canada. khashayar.rafatzand@mail.mcgill.ca
Abstract:
Artifacts are intimately intertwined with MRI. For the practicing radiologist, effective supervision, troubleshooting, and interpretation of diagnostic MR studies require a solid knowledge of the pertinent artifacts. This article seeks to familiarize the reader with commonly encountered artifacts and pitfalls in pelvic imaging, the mechanism behind their generation, and methods of minimizing their negative impact or maximizing their diagnostic yield. It also serves as an exciting tool to learn many aspects of basic and advanced MR physics. Artifacts are categorized into patient- and sequence-related artifacts. Various manifestations of motion and vascular artifacts, susceptibility, altered tissue contrast, blurring, chemical shift artifact, volume averaging, and gadolinium (Gd) pseudolayering are explained, along with their proposed remedies.
Insights
Magnetic resonance imaging (MRI) artifacts in pelvic imaging are common. Understanding their causes and solutions is crucial for radiologists to accurately interpret scans and improve image quality.
Area of Science:
- Radiology and Medical Imaging
- Magnetic Resonance Imaging (MRI) Physics
Background:
- Artifacts are inherent to MRI, significantly impacting diagnostic accuracy in pelvic imaging.
- A thorough understanding of artifact generation mechanisms is essential for radiologists.
- Knowledge of common artifacts aids in troubleshooting and optimizing MRI studies.
Purpose of the Study:
- To familiarize readers with prevalent artifacts and pitfalls encountered in pelvic MRI.
- To explain the underlying physics and mechanisms responsible for artifact generation.
- To provide practical methods for minimizing artifact impact and maximizing diagnostic yield.
Main Methods:
- Categorization of artifacts into patient-related and sequence-related types.
- Detailed explanation of various artifact manifestations, including motion, vascular, susceptibility, altered contrast, blurring, chemical shift, volume averaging, and gadolinium pseudolayering.
- Discussion of proposed remedies and mitigation strategies for each artifact type.
Main Results:
- Comprehensive overview of common pelvic MRI artifacts and their origins.
- Explanation of how artifacts like chemical shift and susceptibility affect image interpretation.
- Guidance on differentiating true pathology from artifactual findings.
Conclusions:
- Mastery of MRI artifact knowledge is vital for effective radiological practice in pelvic imaging.
- This article serves as a resource for understanding basic and advanced MR physics through artifact analysis.
- Implementing artifact mitigation techniques enhances the reliability and diagnostic value of pelvic MRI.
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