1996
DOI: 10.1002/clc.4960190911
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On‐line evaluation of systolic performance by densitometry in digital left ventriculography

Abstract: Summary:The angiocardiographic evaluation of left ventricular end-diastolic (LVEDV) and end-systolic (LVESV) volumes and ejection fraction (EF) is routinely performed by the area-length method (ALM) but may lead to erroneous results. Digital imaging in real time allows densitometric procedures of determining left ventricular (LV) performance to be applied alternatively. In this study, we present densitometric algorithms for the analysis of LVEDV, LVESV, and EF from digital image data, establish accuracy and re… Show more

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Cited by 2 publications
(2 citation statements)
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“…15,16 Hemodynamic recordings were digitized at a rate of 200 Hz using custom-designed data acquisition and display software, and data were sorted on hard disks for subsequent analysis. The volume catheter signal at baseline steady-state was calibrated to stroke volume derived from a right anterior oblique ventriculogram, using the modified singleplane algorithm.…”
Section: Experimental Protocolmentioning
confidence: 99%
“…15,16 Hemodynamic recordings were digitized at a rate of 200 Hz using custom-designed data acquisition and display software, and data were sorted on hard disks for subsequent analysis. The volume catheter signal at baseline steady-state was calibrated to stroke volume derived from a right anterior oblique ventriculogram, using the modified singleplane algorithm.…”
Section: Experimental Protocolmentioning
confidence: 99%
“…Contrast ventriculography was performed as usual. The quantitative analysis of the left ventricular motion was performed by using the digitized ventriculography singleplane Area-Length method, which has been described in detail elsewhere [25].…”
Section: Quantitative Left Ventriculographymentioning
confidence: 99%