Imaging of all three coronary arteries by transthoracic echocardiography. An illustrated guide

Area of Science:

• Cardiovascular Ultrasound
• Echocardiography
• Coronary Artery Imaging

Background:

• Advancements in ultrasound technology facilitate direct transthoracic visualization of the left anterior descending (LAD), circumflex (Cx), and right coronary artery (RCA).
• Transthoracic coronary flow velocity measurements demonstrate high reproducibility and correlation with invasive methods.
• Current clinical use of transthoracic echocardiography (TTE) for coronary arteries is limited but expected to expand.

Purpose of the Study:

• To provide echocardiographers with essential knowledge for direct transthoracic visualization of major coronary arteries.
• To detail the ultrasonic views, examination techniques, and image optimization strategies for coronary artery imaging.
• To familiarize readers with the location of coronary arteries and potential imaging artifacts.

Main Methods:

• A systematic, step-by-step approach for direct transthoracic visualization of the LAD, Cx, and RCA is presented.
• The examination technique is thoroughly discussed, correlating ultrasound views with coronary angiography and cardiac anatomy.
• Image optimization techniques and common artifacts are highlighted, supported by visual aids.

Main Results:

• Direct transthoracic visualization of the LAD, Cx, and RCA in adults is demonstrated as feasible.
• The technique provides reproducible measurements of coronary flow velocity, correlating well with invasive methods.
• Illustrations and movie clips enhance understanding of the visualization process and anatomical correlations.

Conclusions:

• Direct transthoracic examination of the LAD, Cx, and RCA is achievable in adult patients.
• This echocardiographic approach may serve as a valuable complementary tool for coronary artery assessment.
• Further research is required to fully establish the clinical utility and role of this technique.