应激后左心室喷射分数和体积的增量预后值,通过封闭心肌 perfusion 单光子发射计算断层扫描.

T Sharir¹, G Germano, P B Kavanagh

¹Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.

Circulation

|September 8, 1999

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通过Gated-SPECT测量的后应激左心室喷射分数 (EF) 和末缩体积 (ESV) 为心脏事件提供了显著的预后价值,改善了传统输液成像之外的风险分层.

科学领域:

心脏病学心脏病学
核医学是一种核医学.
医疗成像医学成像

背景情况:

压力后的左心室喷射率 (EF) 和末缩体积 (ESV) 与输液的预后值尚未得到充分确立.
门式单光子发射计算机断层扫描 (SPECT) 是一个关键的成像模式.

研究的目的:

研究压力后EF和ESV对 perfusion 影像成像的增量预后值.
评估这些参数对心脏死亡和其他心脏事件的预测能力.

主要方法:

对1680名接受休息Tl-201/压力Tc-99m sestamibi gated-SPECT的患者进行分析.
接收机运营商特征分析,以确定最佳的EF和ESV值.
多变量考克斯比例危险回归用于独立预测分析.

主要成果:

最佳值:EF<45%,ESV>70毫升,终端透析体积>120毫升.
EF<45%或ESV>70mL显著增加心脏死亡率,即使有轻微的输液异常.
EF和ESV在预扫描和 perfusion 数据上显示了增量预后价值.

结论:

盖特-SPECT的后压力EF和ESV提供增量预后信息.

这些参数增强了心脏死亡和主要心脏不良事件的风险分层.

这些发现支持将EF和ESV纳入心脏风险评估中的临床实用性.

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应激后左心室喷射分数和体积的增量预后值,通过封闭心肌 perfusion 单光子发射计算断层扫描.

相关概念视频

相关文章

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Cold Pressor Testing and Sympathetic Nervous System Contribution to Ischemia with No Obstructive Coronary Artery Disease: Results from the Women's Ischemia Syndrome Evaluation-Coronary Vascular Dysfunction Project.

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科学领域:

背景情况:

研究的目的:

主要方法:

主要成果:

结论: