CPT® Code 78584

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The procedure described by CPT® Code 78584 involves pulmonary perfusion imaging, which is a diagnostic test used to assess blood flow in the lungs. During this imaging process, the physician administers a radioactive substance composed of particulate matter that is intentionally designed to be too large to pass through the capillaries within the lung tissue. This characteristic allows for the visualization of blood flow patterns in the lungs. A specialized camera is employed to capture images of the radioactive particles as they accumulate in the lung areas. The accumulation of these particles is critical for identifying regions of the lungs that may not be receiving adequate blood supply, which can indicate potential health issues. In addition to the perfusion imaging, the procedure also includes a ventilation test. In this part of the test, the patient inhales a radioactive gas, specifically Xenon, and is instructed to hold their breath for as long as possible. This technique enables the physician to visualize areas of the lungs that may not be ventilated properly, providing further insight into the patient's pulmonary function. Overall, this dual approach of assessing both perfusion and ventilation is essential for diagnosing various pulmonary conditions and determining appropriate treatment strategies.