PET/MRI中基于MRI的衰减校正中的金属伪影校正策略。
Metal artifact correction strategies in MRI-based attenuation correction in PET/MRI.
作者信息
Schramm Georg, Ladefoged Claes Nøhr
机构信息
Department of Imaging and Pathology, Division of Nuclear Medicine, KU/UZ Leuven, Leuven, Belgium.
Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen, Denmark.
出版信息
BJR Open. 2019 Nov 14;1(1):20190033. doi: 10.1259/bjro.20190033. eCollection 2019.
In hybrid positron emission tomography (PET) and MRI systems, attenuation correction for PET image reconstruction is commonly based on processing of dedicated MR images. The image quality of the latter is strongly affected by metallic objects inside the body, such as . dental implants, endoprostheses, or surgical clips which all lead to substantial artifacts that propagate into MRI-based attenuation images. In this work, we review publications about metal artifact correction strategies in MRI-based attenuation correction in PET/MRI. Moreover, we also give an overview about publications investigating the impact of MRI-based attenuation correction metal artifacts on the reconstructed PET image quality and quantification.
在混合型正电子发射断层扫描（PET）和磁共振成像（MRI）系统中，PET图像重建的衰减校正通常基于对专用MR图像的处理。后者的图像质量会受到体内金属物体的强烈影响，例如牙种植体、内置假体或手术夹，所有这些都会导致大量伪影，这些伪影会传播到基于MRI的衰减图像中。在这项工作中，我们回顾了关于PET/MRI中基于MRI的衰减校正的金属伪影校正策略的出版物。此外，我们还概述了研究基于MRI的衰减校正金属伪影对重建PET图像质量和定量的影响的出版物。
Zotero 插件