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Artifacts and pitfalls in MR imaging of the pelvis
Author(s) -
Rafat Zand Khashayar,
Reinhold Caroline,
Haider Masoom A.,
Nakai Asako,
Rohoman Laurian,
Maheshwari Sharad
Publication year - 2007
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.20996
Subject(s) - troubleshooting , artifact (error) , computer science , radiology , medical physics , medicine , artificial intelligence , operating system
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. J. Magn. Reson. Imaging 2007. © 2007 Wiley‐Liss, Inc.