使用纵向微PET/微CT图像进行心血管化进展的新型量化协议.
Isabel L Day1, Mikayla Tamboline1, Andrea Litwak1
1Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles; Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California, Los Angeles.
Journal of visualized experiments : JoVE
|December 2, 2024
概括
这项研究提出了一项新方案,用于在纵向微PET/CT成像研究中准确量化心血管化进展. 该方法通过对图像进行对齐并定义感兴趣的区域来提高准确度,从而实现精确的沉积分析.
科学领域:
- 生物医学成像学 生物医学成像学
- 心血管研究的心血管研究.
- 临床前研究 临床前研究
背景情况:
- 微位子辐射断层扫描 (PET) 和微计算机断层扫描 (CT) 是追踪心血管化的宝贵非侵入性工具.
- 在纵向研究中精确量化化进展仍然是一个挑战.
研究的目的:
- 为准确量化心血管化进展制定和验证一个简化的协议.
- 在纵向临床前研究中提高图像分析的精度.
主要方法:
- 使用后期阶段的图像作为纵向研究的模板,制定了一项协议.
- 关键步骤包括在连续图像中对准胸部区域,在心脏和大动脉中定义感兴趣的区域 (ROI),并在所有扫描中同时细分/定量沉积物.
主要成果:
- 该协议允许精确的ROI定义,并减少了与分析个体扫描的方法相比的变化.
- 这导致了更准确的量化心血管化进展.
结论:
- 拟议的协议显著提高了心血管化量化在纵向微PET/CT研究的准确性和精度.
- 该方法为在临床前模型中评估疾病进展提供了可靠的方法.
相关概念视频
01:25Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
3
Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
3
01:28Imaging Studies for Cardiovascular System V: CT
3
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
3