Treadmill Exercise Produces Larger Perfusion Defects Than Dipyridamole Stress N-13 Ammonia Positron Emission Tomography

Comparison of treadmill exercise versus dipyridamole stress with myocardial perfusion imaging using rubidium-82 positron emission tomography.

OBJECTIVES This study assessed the feasibility of treadmill exercise rubidium-82 ((82)Rb) positron emission tomography (PET) and compared image quality and diagnostic content with dipyridamole (82)Rb PET in patients referred for evaluation of coronary artery disease (CAD). BACKGROUND Dipyridamole stress (82)Rb PET myocardial perfusion imaging (MPI) is an accurate imaging modality used to diag...

Groningen The integrative value of myocardial perfusion - function imaging with 13 N - ammonia positron emission tomography

Benefits of Time - of - flight Positron Emission Tomography Computed Tomography with 13 N - ammonia

Noninvasive quantification of regional myocardial blood flow (MBF) and coronary flow reserve (CFR) by myocardial perfusion positron emission tomography/computed tomography (PET/CT) imaging is wellestablished and has additional diagnostic value over traditional visual analysis. A growing need for high sensitivity and high spatial resolution capable of assessing smaller targets with shorter acqui...

Prognostic Value of Stress Myocardial Perfusion Positron Emission Tomography

Results Risk-adjusted hazard of cardiac death increased with each 10% myocardium abnormal with mildly, moderately, or severely abnormal stress PET (hazard ratio [HR]: 2.3 [95% CI: 1.4 to 3.8; p 0.001], HR: 4.2 [95% CI: 2.3 to 7.5; p 0.001], and HR: 4.9 [95% CI: 2.5 to 9.6; p 0.0001], respectively [normal MPI: referent]). Addition of percent myocardium ischemic and percent myocardium scarred to ...

Enhanced external counterpulsation improved myocardial perfusion and coronary flow reserve in patients with chronic stable angina; evaluation by(13)N-ammonia positron emission tomography.

AIMS The mechanism by which enhanced external counterpulsation therapy exerts its beneficial effects on chronic and symptomatic stable angina is largely unknown. To clarify the mechanism of action of enhanced external counterpulsation, we used(13)N-ammonia positron emission tomography to evaluate myocardial perfusion. METHODS AND RESULTS This was not a randomized controlled study. Eleven pati...