68 Ga-DOTATATE PET用于表征神经轴中的病变
Katherine Hartmann1, Jennifer A Gillman2, Jillian W Lazor1
1From the Department of Radiology, Hospital of the University of Pennsylvania, Pennsylvania, PA.
Clinical nuclear medicine
|December 4, 2023
概括
-68 DOTATATE PET/CT 有助于区分头部和部瘤. 摄入量高意味着帕拉结瘤,摄入量低意味着不存在瘤.
科学领域:
- 核医学就是核医学.
- 放射学 放射学是一门学科.
- 在瘤学瘤学.
背景情况:
- 区分头部和部神经轴的瘤,如 paragangliomas, schwannomas,和脑膜瘤可能是具有挑战性的常规MRI.
- 68 Ga-DOTATATE PET/CT为改善诊断准确性提供了一个潜在的辅助.
研究的目的:
- 评估68 Ga-DOTATATE PET/CT在区分头部和部各种神经轴瘤中的诊断效用.
- 评估68 Ga-DOTATATE吸收模式与特定瘤组织学之间的相关性.
主要方法:
- 在接受68个Ga-DOTATATE PET/CT的52名患者中,对70个神经轴病变进行了回顾性分析.
- 病变按病理诊断或最佳放射诊断进行分类.
- 统计分析包括Wilcoxon等级总和测试和接收器运行特征 (ROC) 曲线分析,以比较SUVmax值.
主要成果:
- 与其他病变相比,Paragangliomas的68 Ga-DOTATATE摄入量 (SUVmax中位数62) 显着更高.
- Schwannomas 呈现出最小的吸收 (SUVmax 中位数 2),有效地排除了它们.
- 脑膜瘤 (中位数SUVmax 19) 和其他神经轴瘤 (中位数SUVmax 7) 显示了中间吸收.
- 在ROC分析中,对 paraganglioma分化的AUC为0.87,对 schwannoma分化的AUC为0.97.
结论:
- 标记68Ga-DOTATATE的摄入量 (SUVmax>50) 是指标的 paraganglioma,尽管摄入量变化.
- 低至中度吸收是不特定的,可能代表 paraganglioma,脑膜瘤或其他瘤,但实际上排除了 schwannomas.
![Semi-quantitative Assessment Using [18F]FDG Tracer in Patients with Severe Brain Injury](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F58641.jpg&w=3840&q=50)
相关概念视频
01:29Positron Emission Tomography
4.2K
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...
4.2K
01:25Imaging Studies II: Positron Emission Tomography and Scintigraphy
123
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
123