What type of imaging technique is used for detailed coronary artery assessments?

Angiography is the imaging technique that is specifically designed for detailed assessments of the coronary arteries. This method involves the use of a contrast dye that is injected into the arterial system, followed by imaging techniques such as fluoroscopy or digital subtraction angiography to visualize the blood vessels. This allows healthcare providers to identify any blockages or abnormalities in the coronary arteries that could lead to cardiovascular issues.

The other imaging techniques mentioned have different applications. X-rays are used primarily to view the skeletal structure and may show some vascular structures, but they do not provide detailed images of soft tissues or blood vessels like angiography does. Ultrasound uses sound waves to create images of soft tissues and is typically employed for evaluating the heart's function and structure but is not as effective for visualizing arterial blockages directly. CT scans can also produce detailed images of blood vessels, especially when enhanced with contrast agents, but they are generally used in the context of planning procedures or in conjunction with other assessments rather than being the primary method for evaluating coronary arteries independently.

Thus, angiography remains the gold standard for assessing coronary artery conditions due to the high level of detail and clarity it provides regarding vascular health.