Image quality is undergoing constant refinement, and the number of uninterpretable coronary studies has gradually decreased from 20% to 40% using four-detector, to 15% to 25% with 16-detector, and is now as low as 3% to 10% with 64-detector systems. Preface.

摘要

Patients with known or suspected coronary artery disease who are asymptomatic or who have stable symptoms are often evaluated noninva-sively. Functional tests, such as stress electrocar-diography, stress echocardiography, or stress nuclear perfusion imaging, detect and quantify the presence of ischemia based on electrical, mechanical, or perfusion abnormalities, indirectly establishing the burden of coronary artery disease. Although these tests have been shown to provide important prognostic information including the prediction of benefit from revascu-larization, they have limited accuracy for establishing or excluding the diagnosis of obstructive coronary artery disease.