Transthoracic detection of coronary flow in left and right coronary descending arteries during supine bicycle stress echocardiography

Coronary Artery Disease
Angela Zagatina, Nadezhda Zhuravskaya

Abstract

Knowledge of alteration in coronary artery flow during physical activity provides important and valuable information about every patient. The aim of our study was (a) to identify the possibility of assessing coronary artery flow parameters using different ultrasound systems during the exercise test and (b) to compare these parameters with angiography data. A total of 400 consecutive nonselected patients were enrolled. Group 1 included 200 patients who underwent supine exercise echocardiography with the ultrasound system Sonoline G 60S and group 2 included 200 patients who performed the same stress test with the system Vivid 7 Dimension. Before and after exercise, Doppler velocity curves were obtained in the posterior descending coronary artery (PDA) and the left anterior descending artery (LAD). The differences between poststress and rest velocities (ΔV) and the 'poststress velocity/rest velocity' ratio were also calculated. In total, 123 patients underwent a coronary angiography. A total of 92% PDA and 85% LAD before the exercise and 81% PDA and 60% LAD after the exercise were feasible for the assessment of peak velocity in group 1. And a total of 95% PDA and 85% LAD before the exercise and 80% PDA and 57% LAD after the exerci...Continue Reading

References

May 1, 1983·International Journal of Cardiology·L M Zir

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Citations

Aug 10, 2016·European Heart Journal Cardiovascular Imaging·Angela Zagatina, Nadezhda Zhuravskaya

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