Abstract Background: Major depressive disorder (MDD) may negatively influence cardiovascular prognosis, increasing the morbidity and mortality of patients with coronary artery disease (CAD). Thus, the psychometric assessment of these individuals may contribute to understanding how mental health impacts the pathophysiology of myocardial ischemia. Objective: To evaluate the prevalence of MDD in patients with CAD undergoing stress and rest myocardial perfusion imaging (MPI) using the psychometric instrument Patient Health Questionnaire-9 (PHQ-9). As secondary objectives, to correlate quality of life (QoL) data […]