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Updated: Jan 20, 2026

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[¹⁵O]H₂O PET-CT的可行性用于量化外周动脉封闭性疾病下肢肌肉 perfusion:一个试点研究

Goudje L van Leeuwen¹, Richte C L Schuurmann¹, Charalampos Tsoumpas²

¹Department of Surgery, Division of Vascular Surgery, University Medical Center Groningen, University of Groningen, Groningen, Netherlands.

Frontiers in nuclear medicine

|January 19, 2026

概括

长轴视野 [15O]H2O PET-CT可靠量化了周围动脉封闭性疾病 (PAOD) 患者的小腿肌肉 perfusion. 这种技术为评估治疗反应和理解PAOD病理生理学提供了一个有希望的方法.

科学领域:

核医学就是核医学.
血管成像血管成像
生理学生理学生理学

背景情况:

在周围动脉封闭性疾病 (PAOD) 中评估肌肉 perfusion 对于理解 claudication 症状至关重要.
传统的成像技术,如CT血管造影和TcPO2,无法测量深部肌肉区的输液.
[15O]H2O正子发射断层扫描计算机断层扫描 (PET-CT) 提供了定量组织血液流量测量,但其在PAOD中的应用有限.

研究的目的:

调查使用长轴视野 (LAFOV) [15O]H2O PET-CT用于量化PAOD患者的小腿肌肉 perfusion 的可行性和可重复性.
为了比较两个兴趣体积 (VOI) 选择策略用于肌肉 perfusion 量化.
为未来关于PAOD治疗和病理生理学的研究提出假设.

主要方法:

患有鲁瑟福3-6期PAOD的患者在内血管再血管化前后接受了 [15O]H2O PET-CT成像.
肌肉 perfusion (K1) 计算使用1组织区模型和图像衍生输入函数.
用完整的肌肉轮或标准化的球体体积来定义VOI;两次由两名观察员进行分析.

主要成果:

肌肉 perfusion (K1) 的值在 1.54 到 5.22 mL/100 cm3/min. 的范围内.
这两种VOI方法都证明了牛犊肌肉输液的可重复量化,具有高的内部和间隔可靠性 (ICCs ≥0.90).
与球形VOI相比,肌肉轮VOI的复制性略高,可能是由于解剖学准确性.

结论:

[15O]H2O LAFOV PET-CT提供了一种可靠的方法来量化PAOD患者的肌肉 perfusion.
这种成像技术对未来评估血管疾病治疗疗效和疾病机制的研究具有重大前景.
该方法的可复制性支持其在管理PAOD方面的潜在临床实用性.

关键词:

[15O]H2O 的时间.perfusion 图像成像技术的使用周围动脉疾病周围动脉疾病定子发射断层扫描计算机断层扫描计算机断层扫描可靠性的可靠性

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