CT (computerized tomography) scans can be without contrast or with contrast dye. CTA (computerized tomography angiogram) is with contrast, as this is designed to highlight blood vessels and adequacy of blood supply (can’t normally visualize blood vessels on X rays or CT without contrast dye).
“CT (computerized tomography) scans can be without contrast or with contrast dye. CTA (computerized tomography angiogram) is with contrast, as this is designed to highlight blood vessels and adequacy of blood supply (can’t normally visualize blood vessels on X rays or CT without contrast dye).”
Very true. You need the contrast for the CTA in order to determine heart function, but not the chest. I would imagine that they first did a CT for the lungs and then did a CTA to determine if the fluid build up was from the right side of the heart is not working properly (right-sided heart failure), the slowed blood flow causes a buildup of fluid in the veins. The patient’s feet, legs, and ankles begin to swell. This swelling, called edema sometimes spreads to the lungs.