الفهرس Only 14 pages are availabe for public view
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Abstract
The distinction between fibrotic and viable myocardium is a key issue in patients with coronary artery disease and left ventricular dysfunction, metabolic imaging with positron emission tomography (PET)and labeled tracers, along with the study of myocardial perfusion, is now available to identify hibernating myocardium. However, PET imaging of myocardial metabolism is a high-cost and tim-consuming technique. DSE is a safe and reliable test for screening of hibernating myocardium in patients with chronic coronary artery disease and left ventricular dysfunction. The present study it included 40 patients (35 males an 5 females) ranging in age from 40 to 66 years with mean age of 49.8+6.7 the aim of that study was to detect patient who may get benefit from revascularization and was conducted to identify and assess EDWT and normalization as a predictor of myocardial viability. The present study showed that EDWT of normal segments was 1.24+0.081 at low dose and 1.23+0.085 at high dose where the defference between them was statistically non significant (p>0.05). and EDWT of viable segments showing mean 0.87+0.49 at low dose and 0.86+.051 at high dose where the difference between them was also non significant (p>0.05), normalization at low dose 0.72+.23 and 0.71+.024 at high dose the difference between them was non significant (p>0.05).