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Assessment of left ventricular function by single plane cineangiographic volume analysis.

1971; BMJ; Volume: 33; Issue: 4 Linguagem: Inglês

10.1136/hrt.33.4.565

1468-201X

Kanu Chatterjee, M Sacoor, George C. Sutton, Graham Miller,

Cardiac Imaging and Diagnostics

Single plane cineangiography, either in the anteroposterior or in the right anterior oblique pro- jection, can be used to determine left ventricular volumes.Volumes so obtained showed good agreement with those reported by others using biplane techniques.Ejection fraction and ejection rate derived from such volumes were normal in patients with mitral stenosis and with chronic compensated pressure and volume overloads, but were significantly reduced in patients with cardiomyopathy.Unlike ejection fraction and ejection rate, left ventricular end-diastolic pressure was not found to be a sensitive index for differentiating patients with and without left ventricular dysfunction.Volumetric analysis of the left ventricle by serial biplane angiography is now an estab- lished method for quantitative assessment of left ventricular function (Dodge et al., I966; Dodge and Baxley, I969; Arvidsson, I96I; Miller, Kirklin, and Swan, I965; Kennedy et al., I968).This technique has the disadvan- tage that infrequent film exposures necessitate construction of a composite volume curve, and volume changes so measured represent an average of several cardiac cycles.Biplane cineangiography (Chapman et al., 1958; Vogel, Horgan, and Strahl, I970), on the other hand, permits analysis of beat-to-beat volume changes and assessment of reproducibility; moreover, the greater number of film expo- sures reduces the chance of inaccurate estimation of end-systolic and end-diastolic volumes.In clinical practice, single plane cineangio- graphy is more commonly available for assessment of valve or myocardial function.Since others (Sandler et al., I965; Sandler and Dodge, I968; Dodge et al., I966; Hermann and Bartle, I968) have shown good correlation between volumes calculated by serial single plane and serial biplane angiography the possibility exists of utilizing single plane cine- angiography during routine cardiac catheter- ization for left ventricular volume analysis.