使用13N-氨和重定向动态正子辐射断层成像技术量化区域心肌血流
W G Kuhle1, G Porenta, S C Huang
1Department of Radiological Sciences, UCLA School of Medicine, University of California.
Circulation
|September 1, 1992
概括
这项研究使用重定向的短轴正子发射断层扫描 (PET) 图像准确地测量了区域心肌血流. 这种新的方法克服了跨轴成像的局限性,改善了血液流动的评估.
科学领域:
- 心血管成像 - 心血管成像
- 核医学是一种核医学.
- 身体生理学 身体生理学
背景情况:
- 交换性正子发射断层扫描 (PET) 图像用于心肌动脉血流量量化.
- 交换式成像在部分体积校正和区域流量定位方面存在局限性.
研究的目的:
- 提高区域心肌血流量测量的精度和定位.
- 从重定向的短轴PET图像计算区域流量.
主要方法:
- 狗进行了13N-氨PET成像,并进行了微球验证.
- 交易性PET数据被重新定向为短轴.
- 动力建模和部分体积校正应用于重新定向的图像.
主要成果:
- 来自PET的区域心肌血流值与微球数据线性相关 (r=0.93).
- 该方法对代谢物,溢出,部分体积效应和空间分辨率异质性进行了校正.
- 在广泛的流量条件下获得了精确的区域流量值.
结论:
- 重定向的短轴13N-氨PET图像能够准确,非侵入性地测量心肌区域血流量.
- 这种技术克服了跨轴成像的局限性.
- 它可以更全面地评估左心室心肌动脉血流.
相关概念视频
01:17Assessment of Diffusion and Perfusion
Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...
01:24Magnetic Resonance Imaging
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
01:13Radiological Investigation III: Pulmonary Angiogram and PET Scan
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...