We consider a general repair process where the virtual age V i after the ith repair is given by V i Å f(V i01 / X i ), f(r) is a specified repair functional, and X i is the time between the (i 0 1)th and ith repair. Some monotonicity and dominance properties are derived, and an equilibrium process i
Computer processing of echo-mechanocardiograms: Methods and results
✍ Scribed by AndréE. Aubert; Bart G. Denys; Boudewijn Denef; Frans Van de Werf; Hilaire De Geest; Hugo Kesteloot
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 934 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0010-4809
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✦ Synopsis
An interactive computer program was developed for the analysis of combined M-mode echo-mechanocardiograms obtained from experiments on dogs. Computerized measurements of dimensional changes and dynamic behavior of the heart throughout a cardiac cycle can assess left ventricular function. Mechanocardiographic and dimensional data were combined to calculate wall tension and stroke work. Signal recording and acquisition, semiautomatic waveform measurements and calculations, interactive processing and production of end-result graphs, and numerical data are presented. Values for ventricular dimensions (diameter and wall thickness) from dogs were obtained. Results indicate the effectiveness of the analyzing methods.
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