Multi-frame X-ray images (videos) of the coronary arteries obtained using angiography (CAG) provide detailed information about anatomy and blood flow in play a pivotal role diagnosing treating ischemic heart disease. Deep learning has potential to quickly accurately quantify narrowings blockages from CAG videos. A consists videos acquired separately for left artery right (LCA RCA, respectively)...

Myocardial bridging (MB) is an anatomical variation characterized by narrowing during systole of some of the epicardial coronary arterial segments running in the myocardium. It can be encountered in 0.5% to 16% of routine coronary angiographies [1]. Although it is considered as a benign anomaly, it may lead to such complications as myocardial ischemia, acute coronary syndromes, coronary spasm, ...

INTRODUCTION To investigate differences between outpatients with progressive and nonprogressive coronary artery disease (CAD) measured by coronary angiography. MATERIAL AND METHODS Chart reviews were performed in patients in an outpatient cardiology practice having ≥ 2 coronary angiographies ≥ 1 year apart. Progressive CAD was defined as 1) new non-obstructive or obstructive CAD in a previous...

BACKGROUND Prone imaging has been demonstrated to minimize diaphragmatic and breast tissue attenuation. OBJECTIVES To determine the role of prone imaging on the reduction of unnecessary rest perfusion studies and coronary angiographies performed, thus decreasing investigation time and radiation exposure. METHODS We examined 139 patients, 120 with an inferior wall and 19 with an anterior wal...

AIMS Coronary angiography holds a central role in the diagnosis of coronary heart disease. We studied temporal trends in referral patterns 2000-09. METHODS AND RESULTS We identified 156 496 first-time coronary angiographies in 2000-09 in nationwide registries. Trends were analyzed in 2-year intervals. Numbers of acute (5943-10 707) and elective (17 294-25 550) procedures increased between 200...

BACKGROUND Patients with coronary artery disease can accumulate significant radiation dose through repeated exposures to coronary computed tomographic angiography, myocardial perfusion imaging with single photon emission computed tomography or positron emission tomography, and to invasive coronary angiography. Aim of the study was to audit radiation doses of coronary computed tomographic angiog...

Introduction: Coronary artery anomalies are rare clinical entities reported in 0.6% to 5.6% of diagnostic coronary angiographies. Anomalous origins of coronary arteries from distal segments are rarely reported. Presented herein is a coronary anomaly in which the circumflex artery (CX) originated as a continuation of the posterolateral branch of the right coronary artery (RCA) w...

Current guidelines favor the radial approach for coronary angiography. Therefore, specialty radial diagnostic catheters were designed to engage both coronary arteries with a single device. However, it is unclear if single catheters are superior to conventional catheters. A retrospective analysis was performed of consecutive right radial coronary angiographies to determine catheter use, fluorosc...