From the Department of Radiology, University of Alabama at Birmingham, 619 19th St S, JT N325, Birmingham, AL 35249.
Radiographics. 2021 Oct;41(6):1750-1765. doi: 10.1148/rg.2021210035.
With PET/MRI, the strengths of PET and MRI are combined to allow simultaneous image acquisition and near-perfect image coregistration. MRI is increasingly being used for staging and restaging of abdominopelvic oncologic lesions, including prostate, hepatobiliary, pancreatic, neuroendocrine, cervical, and rectal cancers. Fluorine 18-fluorodeoxyglucose PET/CT has long been considered a cornerstone of oncologic imaging, and the development of multiple targeted radiotracers has led to increased research on and use of these agents in clinical practice. Thus, simultaneously performed PET/MRI enables the acquisition of complementary imaging information, with distinct advantages over PET/CT and MR image acquisitions. The authors provide an overview of PET/MRI, including descriptions of the major differences between PET/MRI and PET/CT, as well as case examples and treatment protocols for patients with commonly encountered malignancies in the abdomen and pelvis. RSNA, 2021.
正电子发射断层扫描/磁共振成像（PET/MRI）将正电子发射断层扫描（PET）和磁共振成像（MRI）的优势相结合，实现了同步图像采集和近乎完美的图像配准。MRI 越来越多地用于腹部和盆腔肿瘤病变的分期和再分期，包括前列腺癌、肝胆癌、胰腺癌、神经内分泌癌、宫颈癌和直肠癌。氟 18-氟脱氧葡萄糖 PET/CT 长期以来一直被认为是肿瘤成像的基石，多种靶向放射性示踪剂的开发导致这些药物在临床实践中的研究和应用增加。因此，同时进行的 PET/MRI 可以获得互补的成像信息，与 PET/CT 和 MRI 图像采集相比具有明显优势。作者对 PET/MRI 进行了概述，包括描述了 PET/MRI 和 PET/CT 之间的主要区别，以及腹部和盆腔常见恶性肿瘤患者的病例示例和治疗方案。RSNA，2021 年。
