数字PET/CT与标准PET/CT之间的健康研究参与者的动脉FDG积累的差异
Noriko Nitta1, Rika Yoshimatsu2, Hitomi Iwasa1
1Department of Diagnostic and Interventional Radiology, Kochi Medical School, Kochi University, Kohasu, Oko-Cho, Nankoku, Kochi, 783-8505, Japan.
与标准PET/CT相比,数字PET/CT显示动脉中氧糖 (FDG) 的积累明显更高. 这表明,与肝脏相等的FDG水平可能不会在数字扫描仪上显示异常积累.
科学领域:
- 核医学就是核医学.
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 阳离子辐射断层扫描/计算机断层扫描 (PET/CT) 对于评估代谢活动至关重要.
- 动脉中氧葡萄糖 (FDG) 的吸收可以表明炎症或动脉样硬化.
- 数字PET/CT扫描仪在图像质量和灵敏度上比标准扫描仪提供了潜在的改进.
研究的目的:
- 为了比较数字和标准PET/CT扫描仪在全身动脉中的FDG积累.
- 评估FDG摄入量观察到的差异的诊断影响.
主要方法:
- 追溯分析46名患者之前的标准PET/CT和最近的数字PET/CT检查.
- 视觉评估FDG在动脉段积累,比较吸收到肝脏水平.
- 在扫描仪类型之间计算和比较一般动脉和特定动脉段的阳性率.
主要成果:
- 数字PET/CT对一般动脉的阳性率 (97.8%) 与标准PET/CT (21.7%) 相比显著更高 (p < 0.001).
- 通过数字PET/CT,所有评估的动脉段 (大腿,手臂,大动脉,关节下,下,下,大脑动脉) 的阳性率显著增加.
- 在将数字与标准PET/CT相比较时,在许多动脉段中观察到从负值转向正值的实质性转变.
结论:
- 数字PET/CT显示动脉中的FDG积累明显大于标准PET/CT.
- 动脉中的FDG积累等于肝脏吸收可能代表数字PET/CT的正常发现,需要修订解释标准.
更多相关视频
11:09High-Resolution Cardiac Positron Emission Tomography/Computed Tomography for Small Animals
Published on: December 16, 2022
09:21Human Brown Adipose Tissue Depots Automatically Segmented by Positron Emission Tomography/Computed Tomography and Registered Magnetic Resonance Images
Published on: February 18, 2015
相关概念视频
Positron Emission Tomography
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...
Imaging Studies for Cardiovascular System V: CT
Imaging Studies II: Positron Emission Tomography and Scintigraphy
Fundamental Principles of PET
Radiological Investigation III: Pulmonary Angiogram and 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...
![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)