CPT® Code 73206

Computed tomographic angiography, upper extremity, with contrast material(s), including noncontrast images, if performed, and image postprocessing

A computed tomographic angiography (CTA) of the upper extremity is a specialized imaging procedure that utilizes advanced technology to visualize the blood vessels in the arm and hand. This procedure involves the use of contrast material, which enhances the visibility of the vascular structures during imaging. The process begins with the patient being positioned on a CT table, where an intravenous line is typically inserted into a blood vessel, most commonly in the arm or hand. This line is essential for administering the contrast material, which is injected to improve the clarity of the images obtained. In some cases, non-contrast images may also be captured as part of the procedure, providing additional context and detail. The CTA employs a combination of computed tomography and angiography techniques, allowing for the acquisition of multiple images that are subsequently processed by a computer. This processing creates detailed, three-dimensional cross-sectional views of the blood vessels, which are then displayed on a computer monitor for analysis. The procedure involves a small dose of contrast material being injected at a controlled rate while the CT table moves through the CT machine, capturing the necessary images. Once the CTA is completed, a radiologist reviews and interprets the images, providing critical information that can assist in diagnosing various vascular conditions affecting the upper extremity.