Can the estimation of ejection fraction during gated single photon emission computed tomography at rest add information to the cardiac perfusion study?
| Autor: | H. Al-Kaylani, Britton Ke, Canizales A, Nermina Beslic |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Adult
Male animal structures Heart Ventricles Gated SPECT Statistics as Topic Coronary Artery Disease Single-photon emission computed tomography Coronary artery disease Ventricular Dysfunction Left Organophosphorus Compounds Coronary Circulation medicine Humans Tissue Distribution Radiology Nuclear Medicine and imaging End-systolic volume Aged Tomography Emission-Computed Single-Photon Ejection fraction medicine.diagnostic_test business.industry Technetium (99mTc) tetrofosmin Gated Blood-Pool Imaging Stroke Volume Organotechnetium Compounds General Medicine Middle Aged medicine.disease Exercise Test End-diastolic volume Female Radiopharmaceuticals Nuclear medicine business Perfusion medicine.drug |
| Zdroj: | Nuclear Medicine Communications. 23:899-906 |
| ISSN: | 0143-3636 |
| Popis: | Left ventricular function is an important prognostic indicator in patients with coronary artery disease. The electrocardiogram gated, myocardial, single photon emission tomography (SPECT) program is coming into wide use. This program permits measurement of end diastolic volume, end systolic volume, and ejection fraction. This study was designed to show whether the measurement of ejection fraction by using 99m Tc tetrofosmin gated SPECT at rest could give additional information to the interpretation of perfusion. Exercise 99mTc tetrofosmin SPECT and gated 99m Tc tetrofosmin SPECT at rest were performed in 33 patients with or suspected of having coronary artery disease. Left ventricular ejection fraction was calculated from reconstructed gated SPECT at rest with a software quantitative gated SPECT. The results showed a poor correlation between segmental ejection fraction and segmental perfusion in stress and rest. There was an increasing probability of reversibility as the ejection fraction increased, while there was a greater chance of a fixed defect as the ejection fraction decreased. It is concluded that gated SPECT using 99m Tc tetrofosmin provides clinically satisfactory functional data that, in combination with the perfusion information, will improve diagnostic and prognostic accuracy without an increase in cost or radiation dose to patients. |
| Databáze: | OpenAIRE |
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