Which imaging technique documents left ventricular size and function during left heart catheterization?

Which imaging technique documents left ventricular size and function during left heart catheterization?

• A. Aortography
• B. Coronary angiography
• C. Ventriculography
• D. Pulmonary angiography

Answer: (C)

Ventriculography is used during left heart catheterization to document the size and function of the left ventricle. By injecting contrast directly into the LV and imaging with fluoroscopy, you can see the LV chamber in real time, assess its size in systole and diastole, estimate ejection fraction, and observe regional wall-motion abnormalities. Aortography images the aorta, coronary angiography images the coronary arteries, and pulmonary angiography images the pulmonary vasculature, so they don’t provide direct information about LV size and function. Hence, ventriculography is the imaging technique that documents left ventricular size and function during left heart catheterization.

Ventriculography is used during left heart catheterization to document the size and function of the left ventricle. By injecting contrast directly into the LV and imaging with fluoroscopy, you can see the LV chamber in real time, assess its size in systole and diastole, estimate ejection fraction, and observe regional wall-motion abnormalities.

Aortography images the aorta, coronary angiography images the coronary arteries, and pulmonary angiography images the pulmonary vasculature, so they don’t provide direct information about LV size and function. Hence, ventriculography is the imaging technique that documents left ventricular size and function during left heart catheterization.