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由[¹⁵O]H₂O 来得出的修改冠状动脉流量容量的预测值,正子发射断层扫描输出成像

Ruben W de Winter¹, Ruurt A Jukema¹, Pepijn A van Diemen¹

¹Departments of Cardiology (R.W.d.W., R.A.J., P.A.v.D., S.P.S., Y.B.O.S., T.P.v.d.H., A.C.v.R., A.N., I.D., P.K.), Amsterdam University Medical Centers, Location Vrije Universiteit Amsterdam, the Netherlands.

Circulation. Cardiovascular imaging

|September 19, 2023

概括

通过 [15O]H2O PET成像测量冠状动脉流量容量 (CFC),预测冠状动脉疾病患者的不良结果. 降低CFC,特别是严重的降低和心肌盗窃,与较高的死亡风险和心肌梗塞有关.

科学领域:

心血管成像 - 心血管成像
核心脏病学核心脏病学
诊断成像诊断成像诊断成像

背景情况:

冠状动脉流量容量 (CFC) 量化了冠状动脉疾病对血管扩张功能的影响.
修改后的CFC集成了高血压的心肌血流和冠状动脉流量储备.
这项研究调查了使用 [15O]H2O PET 的修饰CFC 的预后价值.

研究的目的:

为了评估来自 [15O]H2O PET成像的修改冠状动脉流量容量 (CFC) 的预后意义.
评估不同水平的CFC与心血管结果之间的关联.
为了确定修改后的CFC是否提供了超出传统 perfusion 度量标准的独立预后信息.

主要方法:

定量休息/压力 [15O]H2O 1300名患者的PET输液成像.
根据CFC值对患者进行分类:心肌窃,严重,中度,最小减少的CFC和正常流量.
对死亡和非致命心肌梗塞的复合终点的随访.

主要成果:

肌肉心脏窃取,严重减少的CFC和中度减少的CFC与预后明显恶化有关.
静止心肌血流量的增加,高血压心肌血流量的减少和冠状动脉流量储量的减少独立预测了不良结果.
经过对临床因素和其他输液指标进行调整后,修改后的CFC显示出独立的预后值.

结论:

[15O]H2O来自PET的心肌血流,冠状动脉流量储备和CFC是心血管不良事件的预后指标.
修改后的CFC可独立预测已知或疑似冠状动脉疾病患者的不良结果.
改性CFC在心血管风险分层方面提供了有价值的预后信息.

关键词:

冠状动脉疾病是一种冠状动脉疾病.心肌 perfusion 影像成像,用于心肌 perfusion 的成像.定子发射断层扫描 (PET).预后预后预后

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