Coronary sinus dilation, in a cardiac context, refers to an enlargement of the coronary sinus, a large vein collecting deoxygenated blood from the heart muscle. This condition often indicates elevated right-sided heart pressures, such as in pulmonary hypertension or tricuspid regurgitation. Ultrasound, specifically echocardiography, is a crucial non-invasive tool for visualizing and quantifying coronary sinus dilation, aiding in the diagnosis and monitoring of underlying cardiac pathologies.
Accurate assessment of coronary sinus size via medical ultrasound is essential for comprehensive cardiovascular evaluation. Its dilation can also be associated with persistent left superior vena cava, a congenital anomaly. Recognizing this finding helps clinicians understand cardiac hemodynamics and guide treatment strategies, enhancing diagnostic precision in cardiology.