Which technique is used to assess stenoses from different angles during coronary angiography?

Which technique is used to assess stenoses from different angles during coronary angiography?

• A. Single view only
• B. Multiple views
• C. MRI angiography
• D. Echocardiography

Answer: (B)

The main idea is that assessing narrowing in the coronary arteries during angiography requires viewing the vessels from several different angles. A single projection can misrepresent how severe a lesion really is because the stomach or overlapping branches can exaggerate or hide narrowing. By rotating the fluoroscope and taking images from multiple angles, you can see the true lumen diameter, confirm the lesion’s length, and understand its exact location relative to branches. This multi-angle approach helps avoid underestimating or overestimating the stenosis and guides precise treatment planning, such as selecting the appropriate stent size and position. Why the other options aren’t appropriate here: using just one view risks incorrect assessment due to foreshortening or overlap. MRI angiography is a different imaging modality that’s not the technique used during invasive coronary angiography for real-time, multiple-angle evaluation. Echocardiography, while useful for functional assessment and valve or wall motion issues, cannot visualize the coronary lumen in detail to measure stenosis.

The main idea is that assessing narrowing in the coronary arteries during angiography requires viewing the vessels from several different angles. A single projection can misrepresent how severe a lesion really is because the stomach or overlapping branches can exaggerate or hide narrowing. By rotating the fluoroscope and taking images from multiple angles, you can see the true lumen diameter, confirm the lesion’s length, and understand its exact location relative to branches. This multi-angle approach helps avoid underestimating or overestimating the stenosis and guides precise treatment planning, such as selecting the appropriate stent size and position.

Why the other options aren’t appropriate here: using just one view risks incorrect assessment due to foreshortening or overlap. MRI angiography is a different imaging modality that’s not the technique used during invasive coronary angiography for real-time, multiple-angle evaluation. Echocardiography, while useful for functional assessment and valve or wall motion issues, cannot visualize the coronary lumen in detail to measure stenosis.