Department of Radiology, Washington University School of Medicine, 510 S. Kingshighway Blvd, Campus, Box 8131, St. Louis, MO, 63110, USA.
Department of Imaging Physics, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Abdom Radiol (NY). 2023 Sep;48(9):2771-2791. doi: 10.1007/s00261-023-03850-z. Epub 2023 Mar 10.
Pelvic MRI plays a critical role in rectal cancer staging and treatment response assessment. Despite a consensus regarding the essential protocol components of a rectal cancer MRI, substantial differences in image quality persist across institutions and vendor software/hardware platforms. In this review, we present image optimization strategies for rectal cancer MRI examinations, including but not limited to preparation strategies, high-resolution T2-weighted imaging, and diffusion-weighted imaging. Our specific recommendations are supported by case studies from multiple institutions. Finally, we describe an ongoing initiative by the Society of Abdominal Radiology's Disease-Focused Panel (DFP) on Rectal and Anal Cancer to create standardized rectal cancer MRI protocols across scanner platforms.
盆腔 MRI 在直肠癌分期和治疗反应评估中发挥着关键作用。尽管直肠癌 MRI 的基本方案组件已经达成共识，但不同机构和供应商的软件/硬件平台之间的图像质量仍存在很大差异。在这篇综述中，我们提出了直肠癌 MRI 检查的图像优化策略，包括但不限于准备策略、高分辨率 T2 加权成像和扩散加权成像。我们的具体建议得到了多个机构的案例研究的支持。最后，我们描述了美国腹部放射学会疾病聚焦小组（DFP）在直肠癌和肛门癌方面正在进行的一项倡议，旨在创建跨扫描仪平台的标准化直肠癌 MRI 协议。
