论文标题
磁共振成像的异振伪影校正：评论
Off-resonance artifact correction for magnetic resonance imaging: a review
论文作者
论文摘要
在磁共振成像（MRI）中，用于成像的主要磁场中的不均匀性（称为非谐振）可能会导致图像从轻度到严重的伪像，具体取决于应用。呼声伪像，例如信号丢失，几何扭曲和模糊，可以损害MR图像的临床和科学效用。在这篇综述中，我们描述了MRI中离子非谐振的来源，非呼声如何影响图像以及预防和纠正异位的策略。鉴于最近的进步以及低场和/或便携式MRI的巨大潜力，我们还强调了在低场景方面成像在低场上的优势和挑战。
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.
