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graphy permits a more detailed visualisation of the anatomical proportions and an en-face view into the RCA ostium. The visualisation of the proximal RCA is feasible and narrowing Key Words " coronary arteries " right coronary artery " three-dimensional S Stoebe, K Lange and others Feasibility of right coronary artery imaging ID: 15-0014; September 2015 DOI: 10.1530/ERP-15-0014and during stress. In addition, determination of coronaryIntroduction Echocardiography is the most important and most commonly used noninvasive imagingmodality in patients with coronary artery disease. However, suspected stenoses of the coronary arteries are routinely detected owing to ischemia-induced wall motion abnormalities at rest flow reserve (CFR) by pulsed-wave Doppler comparing coronary flow signals at rest and during vasodilator stress can be used for the detection of suspected coronary stenoses (1, 2). The direct visualisation of the morphology of coronary arteries is usually performed by coronary angiography (CA). Although CA represents the diagnostic and therapeutic gold standard for coronary artery imaging in patients with coronary artery disease, specific parts ofcan be detected by 2D and 3D echocardiography if image quality is sufficient. CA is the gold standard for the detection of coronary artery stenoses. However, the potential of this new approach is clinically important because crucial findings of the proximal RCA can be presumably detected non-invasively prior to CA.This work is licensed under a Creative Common