纳米Scan®和P123S全身PET的性能评估
Dániel Réti1,2, Carlos-Alcaide Corral3,4, Islay Cranston3,4
1Mediso Ltd, Laborc Utca 3, Budapest, 1037, Hungary. s2455329@ed.ac.uk.
EJNMMI physics
|December 8, 2025
概括
新的nanoScan® PET/CT P123S系统为临床前成像提供了增强的灵敏度和计数率性能. 它的高空间分辨率和定量准确性使其适用于全身动物研究.
科学领域:
- 临床前成像学 临床前成像学
- pozitron 发射断层扫描 (PET) 是一个技术.
- 医学成像技术 医学成像技术
背景情况:
- 临床前PET系统需要对生物研究进行性能评估.
- 纳米Scan® PET/CT P123S是一种新的扩展视野 (FOV) 系统,专为动物全身PET应用而设计.
研究的目的:
- 为了评估扩展FOV nanoScan® PET/CT P123S系统的性能.
- 为了资格扫描仪适用于动物全身PET应用.
主要方法:
- 使用NEMA NU-4 2008协议评估空间分辨率,噪声等效计数率 (NECR),灵敏度和图像质量.
- 进行了德伦佐幻象和线性测量.
- 进行了体内研究,以评估生物应用性能.
主要成果:
- 通过代重建实现了0.7mm以下的空间分辨率.
- 尼克峰值为1805.0千克/秒 (老鼠幻影) 和880.7千克/秒 (老鼠幻影).
- 绝对灵敏度为10.5%,定量偏差为<4%,线性反应高达105MBq.
结论:
- 扩展的FOV PET系统表现出更好的灵敏度和计数速度性能.
- 空间分辨率和定量准确性适用于临床前PET应用.
- 扩展的FOV可方便在小鼠和大鼠中进行全身成像.
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