What is a CT Coronary Angiogram CT scans have been used to look at various anatomic regions, but have not been useful for the heart because the heart is continuously in motion. CT is very effective in looking at “static” areas, such as the brain, abdominal cavity, and extremities. Most...
Diagnosis of ischemia-causing coronary stenoses by noninvasive fractional flow reserve computed from coronary computed tomographic angiograms. Results from the prospective multi-center DISCOVER-FLOW (Diagnosis of Ischemia-Causing Stenoses Obtained Via Noninvasive Fractional Flow Reserve) study. J Am Coll ...
近年来,冠状动脉CT血管成像(coronary CT angiography,CCTA)技术日臻成熟,高性能的成像设备使得冠状动脉清晰成像成为可能,CCTA正在成为无创诊断冠心病的重要方法.对比常规 导管法冠状动脉造影,CCTA能无创提供冠状动脉病变与否的证据,更容易被广大患者所接受.然而,现阶段CCTA具有阴性预测值高、阳性预测值低、时间分 辨率低以...
CTA CT血管造影 density resolution 密度分辨力 distal of the aortic arch level 主动脉弓上层面 dural sac 硬膜囊 dynamic contrast-enhanced imaging 动脉增强扫描 electron beam CT, EBCT 电子束CT fluid-fluid level 液-液平面 four-chamber level “四腔心”层面 higt resolution CT, HRCT 高分辨力CT Hounsfi...
本研究通过对比常规冠状动脉造影(conventional coronary angiogram,CCA),利用西门子128层螺旋CT冠脉成像研究冠心病患者临床心功能的分级与患者自身冠状动脉狭窄程度和狭窄数目的相互关系。 材料与方法 一 研究对象与方法研究对象:本研究选取自2008年9月至2011年10月本院行冠脉CT成像患者。选入标准:年龄范围在40-75岁间,...
A cardiac computerized tomography (CT) scan – which can also be referred to as a coronary CT angiography or CT angiogram – is an imaging test to view the heart and blood vessels. It is a test that carries few risks and is less invasive than alternative procedures such as an angiogram....
Conclusions:The optimal CCTA protocol improves contrast media timing and coronary CNR by acquiring the angiogram at the true aortic root peak time. Key points: This study in swine retrospectively developed the mathematical basis of an improved approach for optimal contrast media timing in CCTA. By ...
0626T Intraprocedural coronary fractional flow reserve (FFR) with 3D functional mapping of color-hyphencoded FFR values for the coronary tree, derived from coronary angiogram data, for real-hyphentime review and interpretation of possible atherosclerotic stenosis(es) intervention (List separately in addi...
Is there an alternative to an angiogram? An alternative test,cardiac catheterization with a coronary angiogram, is invasive, has more complications related to the placement of a long catheter into the groin or wrist arteries extending all the way to the heart, and the movement of the catheter ...
Noninvasive coronary angiography by retrospectively ECG-gated multislice spiral CT We investigated the applicability and image quality of contrast-enhanced coronary artery visualization by multislice spiral CT using retrospective ECG gati... SAU Baum - 《Acc Current Journal Review》 被引量: 1027发表: ...