![Quantification of Atherosclerotic Plaque Activity and Vascular Inflammation using [18-F] Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography FDG-PET/CT](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F3777.jpg&w=3840&q=50)
通过[18F]FDG PETCT使用数字PET技术对动脉样硬化成像进行图像重建和分析
Stephen Rankin1, A J Gemmell2,3, J McClure1
1BHF Glasgow Cardiovascular Research Centre, School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK.
概括
一个本地优化的PETCT重建协议,使用的代和子集比欧洲核医学协会 (EANM) 的指导方针少,在数字扫描仪上提供更准确的动脉样硬化评估. 这种方法提高了评估斑块负担和心血管风险的准确性.
科学领域:
- 核医学是一种核医学.
- 心血管成像 - 心血管成像
- 放射化学 放射化学是指辐射化学.
背景情况:
- 数字PETCT扫描仪提供了增强的空间分辨率和灵敏度.
- 优化的重建参数对于使用[18F]FDG.G.进行精确的动脉样硬化评估至关重要.
- 目前欧洲核医学协会 (EANM) 的指导方针可能需要对当代数字扫描仪进行改进.
研究的目的:
- 在数字PETCT扫描仪上评估动脉样硬化评估的重建参数.
- 将EANM推的参数与本地优化的协议进行比较.
- 评估重建对[18F]FDG吸收和血液池变异性的影响.
主要方法:
- 临床和幻影PETCT数据的定量分析.
- 两个重建协议的比较:EANM推的和局部优化的 (更少的代/子集).
- 评估平均对比度恢复 (MCR),绝对误差,变化系数 (CoV) 和组织与背景比率 (TBR).
主要成果:
- 当地重建显示了比EANM重建更高的准确性 (较低的绝对误差和Cov).
- EANM重建结果显著提高了TBRmax (4.28对1.81),p<0.0001).
- 高级静脉卡瓦 (SVC) 为TBR评估提供了最可复制的血液池数据.
结论:
- 局部优化的PETCT重建协议对于动脉样硬化评估比EANM对数字扫描仪的建议更准确.
- 绝对误差和Cov等指标对于评估重建质量是有价值的.
- 选择血液池区域,特别是SVC,对于可靠的TBR测量至关重要.
相关概念视频
01:29Positron Emission Tomography
4.1K
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
4.1K
01:25Imaging Studies II: Positron Emission Tomography and Scintigraphy
97
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
Fundamental Principles of PET
97
01:13Radiological Investigation III: Pulmonary Angiogram and PET Scan
88
Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
88