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全身[F]FDG-PET/CT健康对照的成像:用于系统性多器官分析的测试/再测试数据

Sebastian Gutschmayer¹, Josef Yu^1,2, Barbara Katharina Geist²

¹QIMP Team, Medical University of Vienna, Vienna, Austria.

Scientific data

|October 30, 2025

概括

这项研究开发了一种使用[18F]FDG在健康个体中的规范性正子发射断层扫描 (PET) 数据库. 该参考文献有助于检测癌症患者的代谢变化,可能揭示超出瘤成像范围的全身治疗效果.

科学领域:

核医学是一种核医学.
无线电学 (Radiomics) 是一种无线电学.
瘤学成像成像瘤学成像

背景情况:

用2-deoxy-2-[18F]fluoro-D-glucose (FDG) 的正子发射断层扫描 (PET) 和计算机断层扫描 (CT) 在癌症诊断中至关重要,主要用于瘤检测.
当前的PET应用往往忽视了系统效应和更广泛的代谢宏观环境.
需要全面了解超出瘤部位的代谢变化,以改善患者护理和治疗策略.

研究的目的:

使用健康对照建立一个规范性的FDG-PET数据库.
为识别癌症患者的voxel水平代谢异常提供参考.
探索FDG-PET在评估系统性治疗相互作用和超出初级瘤检测范围的变化方面的潜力.

主要方法:

在48名健康对照中采用[18F]FDG进行动态全身PET/CT成像的获取.
静态PET图像的重建 (57-62分钟注射后) 使用基于CT的校正和代重建,使用分辨率恢复和飞行时间.
使用内部细分软件计算135个器官的标准化摄入值 (SUV),霍恩斯菲尔德单位 (HU) 和体积.

主要成果:

从健康对照组创建了一个NIfTI格式的匿名PET/CT图像和CT衍生细分的数据集.
该方法支持开发一个规范性的FDG-PET数据库.
这些数据使得使用PET/CT成像进行代谢活动的多器官分析成为可能.

结论:

来自健康个体的规范性FDG-PET数据库是可行的和有价值的.
这个数据库可以作为检测癌症患者微妙代谢变化的参考.
这种方法有望揭示与治疗相关的系统变化,并加强瘤学中的患者管理.

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