动态灵敏度对比性 perfusion,第2部分:部署与没有对比性泄漏存在的部署
Roland Bammer1, Shalini A Amukotuwa1
1Department of Radiology and Radiological Sciences, Monash University, Clayton, VIC, Australia; Monash Imaging, Monash Health, Clayton, VIC, Australia.
Magnetic resonance imaging clinics of North America
|November 25, 2023
概括
动态灵敏度对比 (DSC) 核磁共振成像使用T2*加权的脉冲序列,对磁性灵敏度变化敏感. 该技术追踪毛细血管床中的对比剂度,用于 perfusion 分析.
科学领域:
- 放射学 放射学是一门学科.
- 医疗成像医学成像
- 神经成像是一种神经成像.
背景情况:
- 动态敏感性对比 (DSC) 磁共振成像 (MR) 是 perfusion 分析的一个关键技术.
- 了解DSC MR采集概念对于准确的解释至关重要.
研究的目的:
- 描述DSCMR成像采集的基本原理.
- 解释用于DSCMR成像中的脉冲序列的要求.
主要方法:
- 使用MRI成像脉冲序列,对磁性易感性变化敏感.
- 采用T2*加权序列,能够检测对比度度变化.
主要成果:
- 成功记录对比度度变化取决于灵敏度敏感的脉冲序列.
- 图像采集速度至关重要,每个组织切片至少需要1-2秒的间隔.
结论:
- 如果采集速度足够快,则T2*加权序列适用于DSCMR成像.
- 适当的DSC MR采集对于可靠的 perfusion 分析至关重要.
更多相关视频
08:13In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography
Published on: February 16, 2016
19.6K
06:29Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
Published on: June 11, 2019
10.4K
相关概念视频
01:20Imaging Studies for Cardiovascular System II:Types of Echocardiography
274
Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for...
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for...
274
01:30Radiological Investigation I: X-ray and CT
245
Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
245