Which imaging procedure visualizes blood vessels after injecting a radiopaque substance?

Which imaging procedure visualizes blood vessels after injecting a radiopaque substance?

• A. Echocardiogram
• B. Angiography
• C. Angiogram
• D. Venography

Answer: (C)

The concept here is using a radiopaque contrast to outline blood vessels on an X-ray. When the contrast is injected, X-ray images capture the vessels’ lumens and paths. The resulting radiographic image is called an angiogram. It shows how blood flows through arteries (and sometimes veins, depending on the technique), making blockages or irregularities visible. Echocardiography uses ultrasound rather than X-ray contrast, so it doesn’t visualize vessels with a radiopaque substance. Venography focuses specifically on veins, but the general image produced after contrast injection describing the vascular map is the angiogram.

The concept here is using a radiopaque contrast to outline blood vessels on an X-ray. When the contrast is injected, X-ray images capture the vessels’ lumens and paths. The resulting radiographic image is called an angiogram. It shows how blood flows through arteries (and sometimes veins, depending on the technique), making blockages or irregularities visible.

Echocardiography uses ultrasound rather than X-ray contrast, so it doesn’t visualize vessels with a radiopaque substance. Venography focuses specifically on veins, but the general image produced after contrast injection describing the vascular map is the angiogram.