同时磁共振成像pH值, perfusion和脏过使用超极化C标记的Z-OMPD
Martin Grashei1, Pascal Wodtke1, Jason G Skinner1
1Department of Nuclear Medicine, TUM School of Medicine, Klinikum rechts der Isar, Technical University of Munich, D-81675, Munich, Germany.
Nature communications
|August 21, 2023
概括
一种新的超极化MRI剂[1,5-13C2]Z-OMPD,可以同时对功能和pH进行成像. 该工具提供多参数指纹,用于诊断病和检测瘤酸化.
科学领域:
- 生物医学成像技术 生物医学成像技术
- 磁共振成像技术 磁共振成像技术
- 医学诊断 医学诊断 医学诊断
背景情况:
- 改变pH值是各种疾病的关键指标,包括癌症和脏疾病.
- 当前的成像方法往往缺乏检测微妙的pH值变化或同时评估多个生理参数的灵敏度.
- 需要先进的成像剂,能够全面了解脏和瘤病理.
研究的目的:
- 介绍和描述[1,5-13C2]Z-OMPD作为一种用于细胞外pH和 perfusion 传感的新型超极化MRI剂.
- 证明该药物在体内具有多参数成像的能力,有助于评估脏疾病和瘤微环境.
- 评估该药物的潜力,同时量化脏血流,膜过率和脏pH值.
主要方法:
- 开发和应用[1,5-13C2]Z-OMPD,一种用于磁共振成像 (MRI) 的高极化对比剂.
- 利用异常长的T1放松时间和高pH灵敏度在多个隔间进行体内pH成像.
- 采用13C共振的光谱选择性向,用于同时进行3D perfusion/filtration和2D pH成像.
主要成果:
- [1,5-13C2]Z-OMPD在1T和高pH灵敏度 (高达1.9ppm/pH单位) 中显示了长T1为2分钟.
- 在体内成像成功地在健康的老鼠脏中可视化了三个不同的pH值区.
- 在一分钟内实现了同时进行3D输液和2DpH成像,在高灵敏度的健康和水性脏中量化了功能和pH值.
结论:
- [1,5-13C2]Z-OMPD作为一个强大的超极化MRI传感器用于细胞外pH和 perfusion.
- 该药物可以对病状况进行多参数指纹检测,并检测局部瘤酸化.
- [1,5-13C2]Z-OMPD是先进瘤学和瘤学应用的一个有前途的药物,因为它能够同时对多个生物标志物进行成像.
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