Summary
In order to measure ejection fractions (EFs) from nuclear ventriculograms, we devised a semi-automated edge-detection technique based on a combination of inverse Fourier analysis and second-derivative techniques. Initial clinical studies showed that, for the left ventricle, our method gives EF values statistically identical with those obtained using a conventional isocontour technique. For the right ventricle, however, the values obtained using the two methods were somewhat more at variance. Despite requiring a longer processing time, the results obtained with our method are reproducible because less operator intervention is necessary.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Botvinick E, Dunn R, Frais M, O'Connell W, Shosa D, Herfkens R, Scheinmann M (1982) The phase image: Its relationship to patterns of contraction and conduction. Circulation 65:551–560
Cardot JC, Berthout P, Verdenet J, Bidet A, Faivre R, Bassand JP, Bidet R, Maurat JP (1982) Temporal Fourier analysis applied to equilibrium radionuclide cineangiography. Eur J Nucl Med 7:353–358
Turner DA, Von Behren PL, Ruggie NT, Hauser RG, Denes P, Amjad A, Messer JV, Fordham EW, Groch MW (1982) Noninvasive identification of initial site of abnormal ventricular activation by least-square phase analysis of radionuclide cineangiograms. Circulation 65:1511–1518
Wendt III RE, Murphy PH, Clark JW, Burdine JA (1982) Interpretation of multigated Fourier functional images. J Nucl Med 23:715–724
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Balachandran, S., Eason, S., McGuire, L. et al. Ejection fraction by combined inverse Fourier analysis and second-derivative technique: Correlation with isocontour method. Eur J Nucl Med 12, 69–71 (1986). https://doi.org/10.1007/BF00364731
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00364731