实用指南,以识别和故障排除非最佳的DSC-MRI结果
Melissa A Prah1, Kathleen M Schmainda1,2
1Department of Biophysics, Medical College of Wisconsin, Milwaukee, WI, United States.
Frontiers in radiology
|March 6, 2024
概括
动态敏感性对比 (DSC) perfusion MRI (pMRI) 提供了关键的瘤负担数据. 本指南强调了在采集和处理中常见的DSC-pMRI陷,以确保精确的放射性诊断.
科学领域:
- 放射学 放射学是指放射学
- 神经成像是一种神经成像.
- 医学物理 医学物理
背景情况:
- 来自DSC perfusion MRI (pMRI) 的相对脑血量 (rCBV) 是评估神经放射性瘤负担的关键标志物.
- 标准化的pMRI采集协议现在有助于在临床环境中更广泛地采用.
- 尽管有标准化的协议,但DSC-pMRI的技术挑战可能会损害数据质量和诊断准确性.
研究的目的:
- 展示DSC-pMRI采集和后处理错误的现实实例.
- 为识别和减轻常见的pMRI问题提供实用策略.
- 确保高质量的DSC-pMRI数据的解释,以可靠地评估瘤负担.
主要方法:
- 对DSC-MRI数据集数据库的审查,以确定常见的技术故障.
- 与图像采集 (对比剂,时间,速度,SNR,文物) 和后处理相关问题的分类.
- 针对已识别的pMRI问题制定缓解策略.
主要成果:
- DSC-pMRI数据质量容易受到微妙的采集和后处理错误的影响.
- 经常遇到与对比剂动态,信号噪声比率和易感性人造物质的问题.
- 错过的技术缺陷可能不会在最终的rCBV图像中显现出来,导致诊断错误.
结论:
- 识别和解决DSC-pMRI技术陷对于准确的神经放射学诊断至关重要.
- 在对比管理,图像质量和文物管理等常见问题上提供指导至关重要.
- 实施缓解策略可以确保rCBV作为瘤负担标记物的可靠性.
关键词:
CNR/对比度与噪声比率的比率.DSC-MRI/动态灵敏度对比测试使用大脑瘤是个大脑瘤旅行指南 旅行指南 旅行指南问题/故障排除perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion perfusion 这种方法通常被认为是最常见的方法之一,因为它可以让一个人感觉到自己的内在,而不是一个人的内在,而是一个人的内在,而不是一个人的内在.后期处理 后期处理rCBV/rCBF是什么意思 rCBV/rCBF是什么意思
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