CPT® Code 78445

Non-cardiac vascular flow imaging, as described by CPT® Code 78445, refers to a diagnostic procedure that utilizes scintigraphy along with a radiolabeled isotope tracer to visualize blood flow in various vascular structures outside of the heart. This imaging technique encompasses procedures such as angiography and venography, which are essential for assessing the vascular system's functionality. The primary purpose of these studies is to identify abnormal regional perfusion in organs and extremities, which can indicate underlying vascular issues. Through this imaging, healthcare professionals can diagnose conditions such as occlusions in veins and arteries, which may impede blood flow, and the formation of collateral circulation, where alternative pathways develop to maintain blood supply. Additionally, non-cardiac vascular flow imaging is valuable for evaluating the position and patency of various central lines and catheters, including Porta-caths, Hickman catheters, plasmapheresis catheters, and peripherally inserted central catheters (PICC lines). During the procedure, the patient is carefully positioned on an imaging table, and a gamma camera is placed over the targeted area to capture the necessary images. Intravenous lines are established, or existing central lines may be accessed to inject the radiolabeled isotope tracer directly into the circulatory system. The imaging process involves scanning at predetermined intervals, during which the emitted radioactive energy is recorded and displayed as a cine loop on a computer for analysis. Ultimately, the physician interprets the results of the imaging study and compiles a comprehensive written report detailing the findings.