Key result
Cone of revolution method yields similar EDV to corrected Dodge method without long-axis measurement.
Why the study?
A new method based only on area measurements was developed to calculate left ventricular volume from biplane left ventriculograms approximating the ventricle by a cone of revolution.
Does the cone of revolution method accurately calculate left ventricular volume compared to the Dodge method in patients undergoing biplane left ventriculography?
Observational (n=46)
Does the cone of revolution method accurately calculate left ventricular volume compared to the Dodge method in patients undergoing biplane left ventriculography?
The cone of revolution method provides a simplified alternative to the Dodge method for calculating left ventricular volume from biplane ventriculograms by eliminating the need to measure the long axis.
Answers are grounded in this paper and cite their sources.
Cone approximation should not yet alter ESV assessment; leaves open simplified EDV calculation from biplane ventriculograms.
A new method based only on area measurements was developed for calculating left ventricular volume from biplane (RAO and LAO) left ventriculograms; the ventricle was approximated by a cone of revolution. Twenty-three patients with normal and 23 patients with abnormal left ventricles were studied. The Dodge method provided reference values. There was no significant difference between values for EDV calculated by either method; values for ESV calculated by the cone method were consistently higher, but the error is acceptable. The cone method provides results similar to those obtained by the corrected Dodge method, eliminating the problem of choosing and measuring the long axis.
No takes yet. Share an insight, caveat, or question.
Beránek et al. (1977) conducted an observational in Normal and abnormal left ventricles (n=46). Cone of revolution method vs. Dodge method was evaluated on Left ventricular volume (EDV and ESV). The cone of revolution method provided similar end-diastolic volume results to the corrected Dodge method, eliminating the problem of choosing and measuring the long axis.
Synapse has enriched 10 related papers. Consider them for comparative context: