| Autor: |
Balachandran, Suppiah, Eason, Stuart, McGuire, Lynn, Bernard, Suzanne, Boyd, Charles |
| Zdroj: |
European Journal of Nuclear Medicine; Jun1986, Vol. 12 Issue 2, p69-71, 3p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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