AAPM Task Group Report 325: MRI static magnetic field homogeneity measurement and evaluation procedures – Guidance and resources

IF 3.2 2区医学 Q1 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING

Medical physics Pub Date : 2024-08-21 DOI:10.1002/mp.17351

Christina L Brunnquell, Trevor J Andrews, Samuel W Fielden, Kathryn Huff, David W Jordan, Michael T O'Shea, Dustin K Ragan, Michael A Tressler, Travis C Salzillo, Joseph Och

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引用次数: 0

Abstract

Measurement of static magnetic field (B₀) homogeneity is an essential component of routine MRI system evaluation. This report summarizes the work of AAPM Task Group (TG) 325 on vendor-specific methods of B₀ homogeneity measurement and evaluation. TG 325 was charged with producing a set of detailed, step-by-step instructions to implement B₀ homogeneity measurement methods discussed in the American College of Radiology (ACR) MRI Quality Control Manual using specific makes and models of MRI scanners. The TG produced such instructions for as many approaches as was relevant and practical on six currently available vendor platforms including details of software/tools, settings, phantoms, and other experimental details needed for a reproducible protocol. Because edits to these instructions may need to be made as vendors enter and exit the market and change available tools, interfaces, and access levels over time, the step-by-step instructions are published as a living document on the AAPM website. This summary document provides an introduction to B₀ homogeneity testing in MRI and several of the common methods for its measurement and evaluation. A living document on the AAPM website provides vendor-specific step-by-step instructions for performing these tests to facilitate accurate and reproducible B₀ homogeneity evaluation on a routine basis.

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AAPM 工作组报告 325：MRI 静态磁场均匀性测量和评估程序 - 指南和资源。

静态磁场 (B0) 均匀性测量是常规 MRI 系统评估的重要组成部分。本报告总结了 AAPM 第 325 工作组（TG）在特定供应商 B0 均质性测量和评估方法方面的工作。TG 325 负责制作一套详细的分步说明，以便使用特定品牌和型号的 MRI 扫描仪实施美国放射学会 (ACR) MRI 质量控制手册中讨论的 B0 均匀性测量方法。技术小组在目前可用的六种供应商平台上为尽可能多的相关实用方法制作了此类说明，包括软件/工具、设置、模型和可重复方案所需的其他实验细节。由于随着供应商进入或退出市场，以及可用工具、界面和访问级别的不断变化，可能需要对这些说明进行编辑，因此分步说明作为活文档发布在 AAPM 网站上。本摘要文件介绍了磁共振成像中的 B0 均匀性测试及其测量和评估的几种常用方法。AAPM 网站上的动态文档提供了执行这些测试的特定供应商分步说明，以促进日常准确和可重现的 B0 均匀性评估。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Medical physics 医学-核医学

CiteScore

6.80

自引率

15.80%

发文量

660

审稿时长

1.7 months

期刊介绍： Medical Physics publishes original, high impact physics, imaging science, and engineering research that advances patient diagnosis and therapy through contributions in 1) Basic science developments with high potential for clinical translation 2) Clinical applications of cutting edge engineering and physics innovations 3) Broadly applicable and innovative clinical physics developments Medical Physics is a journal of global scope and reach. By publishing in Medical Physics your research will reach an international, multidisciplinary audience including practicing medical physicists as well as physics- and engineering based translational scientists. We work closely with authors of promising articles to improve their quality.