Effect of background correction on left ventricular ejection fraction calculation through analysis of a simple cardiac model
| Autor: | D. E. Grove, Richard A. Stein, J. Nosil |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Physics
medicine.medical_specialty animal structures Ejection fraction Blood pool General Medicine Stroke volume Radiocardiography 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Background Correction Region of interest 030220 oncology & carcinogenesis Internal medicine cardiovascular system medicine Cardiology Radionuclide imaging |
| Zdroj: | Medical Physics. 13:949-953 |
| ISSN: | 0094-2405 |
| DOI: | 10.1118/1.595824 |
| Popis: | The dependence of the left ventricular ejection fraction calculation on the background correction in gated cardiac blood pool studies is examined by analyzing a simple cardiac model. It is shown that the ejection fraction is relatively insensitive to the background correction when an accurately determined variable region of interest is used, but that with a fixed region of interest the background correction must be accurately estimated. A similar ejection fraction-background correction relationship is obtained in the analysis of clinical cardiac data. Based on the cardiac model, two methods are suggested which, with further investigation and refinement, may lead to a more accurate and consistent technique for determining ejection fraction and background. |
| Databáze: | OpenAIRE |
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