Journal article
Quantification of left ventricular function with an automated border detection system and comparison with radionuclide ventriculography
The American journal of cardiology, Vol.73(2), pp.195-199
1994
DOI: 10.1016/0002-9149(94)90214-3
PMID: 8296743
Abstract
Quantification of 2-dimensional echocardiograms with a recently developed automated border detection (ABD) system provides on-line estimtion of left ventricular (LV) function. Previous studies showed that short-axis cavity area measurements with the ABD system approximate manually traced cavity areas obtained with conventional 2-dimensional echocardiography. Further clinical validation needs a comparison of LV function between the ABD system and established methods. Fractional area change and ejection fraction measured by the ABD system were compared with ejection fraction measured by radionuclide ventriculography. Echocardiographic measurements were obtained from LV short-axis views at the level of the papillary muscles. Calculation of ejection fraction by the ABD system was based on an algorithm using a modified ellipsoid model. Forty-six patients underwent echocardiography on the same day as radionuclide ventriculography. Patients were included in the study if ≥75% of the endocardium was visualized with conventional 2-dimensional echocardiography. Twenty-seven of 46 patients (59%) had a technically adequate, conventional echocardiogram. Fractional area change with the ABD system was highly correlated with ejection fraction from radionuclide ventriculography (r = 0.92; SEE 8.4%). Ejection fraction determined by the ABD system and radionuclide ventriculography also showed a strong linear relation in the 23 patients without severe wall motion abnormality (r = 0.90; SEE 9.5%). It is concluded that LV function measurements by the ABD system and radionuclide ventriculography have a strong linear relation.
Details
- Title: Subtitle
- Quantification of left ventricular function with an automated border detection system and comparison with radionuclide ventriculography
- Creators
- Paul D LindowerLinda RathJanice PreslarTrudy L BurnsKarim RezaiByron F Vandenberg
- Resource Type
- Journal article
- Publication Details
- The American journal of cardiology, Vol.73(2), pp.195-199
- Publisher
- Elsevier Inc
- DOI
- 10.1016/0002-9149(94)90214-3
- PMID
- 8296743
- ISSN
- 0002-9149
- eISSN
- 1879-1913
- Language
- English
- Date published
- 1994
- Academic Unit
- Radiology; Epidemiology; Cardiovascular Medicine; Fraternal Order of Eagles Diabetes Research Center; Internal Medicine
- Record Identifier
- 9984094508502771
Metrics
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