影响18F儿童FDG吸收的患者因素
Pradipta Debnath1, Andrew T Trout2
1Department of Radiology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Ave, Kasota Building MLC 5031, Cincinnati, OH 45229, United States of America.
在接受PET/CT的儿童中,氧葡萄糖 (FDG) 的生理吸收与年龄和体重有关. 增加每公斤注射剂量可能不会改善幼儿的肝脏信号噪声比.
科学领域:
- 核医学是一种核医学.
- 儿科成像学 儿科成像学
- 放射性药物 放射性药物 放射性药物
背景情况:
- F FDG PET/CT是儿科瘤学中至关重要的诊断工具.
- 优化儿童的图像质量对于准确的诊断和治疗监测至关重要.
- 了解儿科患者的生理FDG吸收模式是改善图像质量的关键.
研究的目的:
- 在接受PET/CT的儿童中,描述F FDG的生理吸收.
- 确定影响儿科患者FDG吸收和图像质量的因素.
- 为优化儿童群体FDG PET/CT图像质量的策略提供信息.
主要方法:
- 对来自139名儿科患者的193个FDG PET/CT扫描进行了回顾性分析.
- 使用3D球形ROI测量肝脏和大腿肌肉数量和SUV平均体重.
- 通过相关性和回归分析,评估计数,SUV,肝脏SNR和患者预测指标 (年龄,体重,注射活动) 之间的关联.
主要成果:
- 肝脏吸收量 (计数和SUV平均体重) 与患者的体重,年龄和注射的总活动有很强的相关性.
- 部肌肉吸收与每公斤注射的活力有关.
- 多变量分析确定了体重和年龄作为肝脏吸收的显著独立预测因素.
- 肝脏SNR与预测因子有适度的关联,但与每公斤注射活性没有显著关联.
结论:
- 肝脏F儿童的FDG吸收与年龄和体重显著相关.
- 增加每公斤FDG注射剂量可能不会提高幼儿肝脏图像质量 (SNR).
- 这些发现为优化儿科FDG PET/CT协议提供了洞察力.
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