Application of Basic Physics Principles to Clinical Neuroradiology: Differentiating Artifacts From True Pathology on MRI

被引：8

作者：

Hakky, Michael ^{[1
]}

Pandey, Shilpa ^{[2
]}

Kwak, Ellie ^{[2
]}

Jara, Hernan ^{[3
]}

Erbay, Sami H. ^{[1
]}

机构：

[1] Lahey Clin Med Ctr, Dept Radiol, Burlington, MA 01805 USA

[2] Tufts Univ, Sch Med, Dept Radiol, Boston, MA 02111 USA

[3] Boston Univ, Med Ctr, Dept Radiol, Boston, MA 02118 USA

来源：

AMERICAN JOURNAL OF ROENTGENOLOGY | 2013年 / 201卷 / 02期

关键词：

aliasing; Gibbs artifact; machinery artifact; metal artifact; motion artifact; MRI; physics; STATE FREE PRECESSION; FIELD-OF-VIEW; PULSATION ARTIFACT; SPIN-ECHO; K-SPACE; MOTION; GRADIENT; REDUCTION; IMAGES; SUPPRESSION;

D O I：

10.2214/AJR.12.10394

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

100231 [临床病理学]; 100902 [航空航天医学];

摘要：

OBJECTIVE. This article outlines artifactual findings commonly encountered in neuroradiologic MRI studies and offers clues to differentiate them from true pathology on the basis of their physical properties. Basic MR physics concepts are used to shed light on the causes of these artifacts. CONCLUSION. MRI is one of the most commonly used techniques in neuroradiology. Unfortunately, MRI is prone to image distortion and artifacts that can be difficult to identify. Using the provided case illustrations, practical clues, and relevant physical applications, radiologists may devise algorithms to troubleshoot these artifacts.

引用

页码：369 / 377

页数：9

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