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

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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