Off-resonance artifact correction for MRI: A review.
Off-resonance artifact correction for MRI: A review.
复制标题
MRI 的偏共振伪影校正：综述。
DOI：
10.1002/nbm.4867
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发表时间：
2023
影响因子：
2.9
通讯作者：
Noll,DouglasC
中科院分区：
文献类型：
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作者：
Haskell,MelissaW;Nielsen,Jon-Fredrik;Noll,DouglasC
在磁共振成像（MRI）中，用于成像的主磁场的不均匀性（称为非共振）可能导致图像伪影，范围从轻度到严重，具体取决于应用。非共振伪影（如信号丢失、几何失真和模糊）可能会影响MR图像的临床和科学实用性。在这篇综述中，我们描述了MRI中非共振的来源，非共振如何影响图像，以及预防和纠正非共振的策略。鉴于低场和/或便携式MRI的最新进展和巨大潜力，我们还强调了低场成像在非共振方面的优势和挑战。
In magnetic resonance imaging (MRI), inhomogeneity in the main magnetic field used for imaging, referred to as off‐resonance, can lead to image artifacts ranging from mild to severe depending on the application. Off‐resonance artifacts, such as signal loss, geometric distortions, and blurring, can compromise the clinical and scientific utility of MR images. In this review, we describe sources of off‐resonance in MRI, how off‐resonance affects images, and strategies to prevent and correct for off‐resonance. Given recent advances and the great potential of low‐field and/or portable MRI, we also highlight the advantages and challenges of imaging at low field with respect to off‐resonance.