Regional and global left ventricular wall motion was assessed in 120 patients using radionuclide cineangiography (RCA) and contrast angiography. Functional imaging procedures based on a temporal Fourier analysis of dynamic image sequences were applied to the study of cardiac contractility. Two images were constructed by taking the phase and amplitude values of the first harmonic in the Fourier transform for each pixel. These two images aided in determining the perimeter of the left ventricle to calculate the global ejection fraction. Regional left ventricular wall motion was studied by analyzing the phase value and by examining the distribution histogram of these values. The accuracy of global ejection fraction calculation was improved by the Fourier technique. This technique increased the sensitivity of RCA for determining segmental abnormalities especially in the left anterior oblique view (LAO).
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Cardot, J.C., Berthout, P., Verdenet, J. et al. Temporal Fourier analysis applied to equilibrium radionuclide cineangiography importance in the study of global and regional left ventricular wall motion. Eur J Nucl Med 7, 353–358 (1982). https://doi.org/10.1007/BF00255653
- Dynamic Image
- Cardiac Contractility
- Distribution Histogram
- Oblique View
- Left Ventricular Wall Motion