CPT® Code 78202

Liver imaging with vascular flow, as described by CPT® Code 78202, involves the use of scintigraphy and a radiolabeled isotope tracer, specifically 99mTc-sulfur colloid. This imaging technique is essential for assessing the liver's size and identifying various abnormalities such as tumors, abscesses, hematomas, or cysts. The liver plays a critical role in the body, including the production of bile, metabolism of nutrients, detoxification of drugs and toxins from the bloodstream, and the synthesis of proteins necessary for blood plasma and clotting regulation. Anatomically, the liver is situated in the upper right quadrant of the abdomen and consists of two main lobes, which are further divided into smaller lobules. These lobules are interconnected by a network of small ducts that facilitate the drainage of bile into larger ducts, ultimately leading to the hepatic duct. Bile, produced by the liver, contains enzymes that aid in the breakdown of fats and assist in the transport of waste materials to the gallbladder and duodenum. During the procedure, an intravenous line is established to administer the radiolabeled isotope tracer. Following a designated waiting period, the patient is positioned on the imaging table, with the gamma camera placed over the upper right abdomen. Scanning is conducted at specific intervals to capture images of the liver, utilizing the radioactive energy emitted from the organ. The vascular nature of the liver, characterized by the portal vein and hepatic artery, is crucial for understanding blood flow dynamics; any compromise in one vessel can lead to alterations in the blood flow of adjacent vessels. The physician is responsible for interpreting the scintigraphy results and generating a comprehensive written report detailing the findings.