Kwok Wingchi Edmund
Department of Imaging Sciences, University of Rochester, Rochester, United States.
J Clin Imaging Sci. 2024 Sep 5;14:33. doi: 10.25259/JCIS_74_2024. eCollection 2024.
Radiofrequency (RF) interference artifact is a common type of magnetic resonance imaging (MRI) artifacts caused by the presence of unwanted RF field inside the scanner room. The artifact has the appearance of parallel bright lines or bands that resemble zippers, which can mimic pathology, obstruct the viewing of underlining tissues, and lower image signal-to-noise ratio, affecting the diagnostic evaluation of the image and sometimes even rendering it non-diagnostic. Due to the presence of multiple possible sources of RF interference in MRI and potential nonrelated MRI artifacts that resemble RF interference artifact, it may be difficult to effectively and timely resolve the artifact problem. The objective of this paper is to provide a review of RF interference in MRI and to offer guidance in the prompt and correct identification of the associated image artifacts as well as efficient approaches to resolve and prevent RF interference problems. This article should serve as a useful educational reference to magnetic resonance (MR) technologists and radiologists in dealing with MR image artifacts that may be caused by RF interference.
射频（RF）干扰伪像是磁共振成像（MRI）中常见的一种伪像，由扫描室内存在不需要的射频场引起。该伪像表现为类似拉链的平行亮线或条带，可模仿病变、阻碍对下层组织的观察并降低图像信噪比，影响图像的诊断评估，有时甚至使其无法用于诊断。由于MRI中存在多种可能的射频干扰源以及与射频干扰伪像相似的潜在非相关MRI伪像，可能难以有效且及时地解决伪像问题。本文的目的是对MRI中的射频干扰进行综述，并为快速正确识别相关图像伪像以及解决和预防射频干扰问题的有效方法提供指导。本文应作为磁共振（MR）技术人员和放射科医生处理可能由射频干扰引起的MR图像伪像的有用教育参考资料。
