Noninvasive Measurement of Left Coronary Blood Flow Reserve by Transthoracic Doppler Echocardiography
| Autor: | Katsuhiko Hiramori, Masataka Nasu, Satoshi Kuriki, Kenichi Fukami |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
medicine.medical_specialty
medicine.diagnostic_test business.industry Ultrasound Diastole Atrial fibrillation Blood flow Anterior Descending Coronary Artery Doppler echocardiography medicine.disease Dipyridamole symbols.namesake Internal medicine symbols Cardiology Medicine Radiology Nuclear Medicine and imaging Cardiology and Cardiovascular Medicine business Doppler effect medicine.drug |
| Zdroj: | Echocardiography. 16:547-557 |
| ISSN: | 1540-8175 0742-2822 |
| DOI: | 10.1111/j.1540-8175.1999.tb00103.x |
| Popis: | The development of new ultrasound instrumentation has made epicardial coronary artery blood flow imaging easier with the use of transthoracic coronary Doppler echocardiography (TCDE). This study was performed to investigate the accuracy of coronary blood flow reserve (CFR) measurement by TCDE. In 15 patients with ischemic heart disease in the absence of valvular disease or atrial fibrillation, coronary flow at rest and flow with hyperemia induced by intravenous dipyridamole infusion were recorded by TCDE and Doppler guidewire ultrasonography. The CFR was determined as the ratio of the maximum hyperemic diastolic time-averaged peak velocity to the velocity at rest in the proximal or distal left anterior descending coronary artery. It was found that the CFR of the left anterior descending coronary artery measured by TCDE was comparable in accuracy with CFR measured by invasive methods (r = 0.87, P < 0.0001, n = 15). |
| Databáze: | OpenAIRE |
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