Videodensitometric ejection fractions from intravenous digital subtraction left ventriculograms: correlation with conventional direct contrast and radionuclide ventriculography.
Videodensitometric ejection fractions from intravenous digital subtraction left ventriculograms: correlation with conventional direct contrast and radionuclide ventriculography.
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静脉数字减影左心室造影的视频密度射血分数：与传统直接造影和放射性核素心室造影的相关性。
DOI：
10.1148/radiology.155.1.3883414
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发表时间：
1985
期刊：
影响因子：
19.7
通讯作者：
J. Leatherman
中科院分区：
文献类型：
--
作者：
R. Detrano;W. Macintyre;E. Salcedo;J. O’Donnell;D. Underwood;C. Simpfendorfer;R. Go;H. Jones;K. Butters;J. Leatherman
43例接受直接对比心室造影的患者接受静脉数字减影心室造影和首过放射性核素心室造影，以比较每种方法获得的左心室射血分数。射血分数的计算面积长度的方法从直接对比心室造影，面积长度和视频密度法从数字减影心室造影，并通过计数密度从放射性核素心室造影。晚期掩膜再减影影像密度法与放射性核素法（r = 0.85）和数字心室造影面积长度法与直接对比法（r = 0.88）获得的值之间存在令人满意的相关性。视频密度测量方法可能是一种替代方法，以估计左心室射血分数准确，而不依赖于几何假设的形状的左心室腔。
Forty-three patients who had undergone direct-contrast ventriculography were submitted to intravenous digital subtraction ventriculography and first-pass radionuclide ventriculography to compare the left ventricular ejection fractions obtained by each method. Ejection fractions were calculated by the area-length method from the direct contrast ventriculograms, by both area-length and videodensitometric methods from the digital subtraction ventriculograms, and by count densitometry from the radionuclide ventriculograms. Satisfactory correlations were found between values obtained by the late mask resubtracted videodensitometric method and the radionuclide method (r = 0.85) and by the digital ventriculographic area length method and direct-contrast method (r = 0.88). Videodensitometric methods may be an alternative way to estimate left ventricular ejection fractions accurately without reliance on geometric assumptions about the shape of the left ventricular cavity.