Which imaging methods are used to assess regurgitation during cath?

Which imaging methods are used to assess regurgitation during cath?

• A. Aortography and Ventriculography
• B. Echocardiography and MRI
• C. CT Angiography
• D. Nuclear Perfusion

Answer: (A)

In the cath lab, regurgitation is assessed by directly visualizing backward flow across the valves with angiographic injections. Injecting contrast into the aorta (aortography) lets you see aortic regurgitation as contrast that leaks back into the left ventricle during diastole. Injecting contrast into the left ventricle (ventriculography) reveals mitral regurgitation as a jet of contrast that leaks into the left atrium during systole. Together, these two angiographic views provide immediate, invasive assessment of valve competence during the procedure. Other modalities like echocardiography or MRI are excellent for quantifying regurgitation but are not the primary invasive methods used during cath. CT angiography and nuclear perfusion don’t directly visualize regurgitant jets during the cath procedure.

In the cath lab, regurgitation is assessed by directly visualizing backward flow across the valves with angiographic injections. Injecting contrast into the aorta (aortography) lets you see aortic regurgitation as contrast that leaks back into the left ventricle during diastole. Injecting contrast into the left ventricle (ventriculography) reveals mitral regurgitation as a jet of contrast that leaks into the left atrium during systole. Together, these two angiographic views provide immediate, invasive assessment of valve competence during the procedure. Other modalities like echocardiography or MRI are excellent for quantifying regurgitation but are not the primary invasive methods used during cath. CT angiography and nuclear perfusion don’t directly visualize regurgitant jets during the cath procedure.