CPT® Code 78645

Cerebrospinal fluid (CSF) flow imaging is a diagnostic procedure that utilizes scintigraphy along with a radiolabeled isotope tracer to assess the functionality and patency of shunts placed in the brain. These shunts are critical medical devices used to manage conditions where there is an obstruction in the normal flow of CSF, which can lead to increased intracranial pressure and other complications. The procedure involves the injection of a radiolabeled tracer into the CSF through a reservoir associated with the shunt. This allows for the visualization of CSF movement and helps determine whether the shunt is functioning properly. The imaging is conducted with the patient positioned on an imaging table, where a gamma camera captures the emitted radioactive energy at predetermined intervals, creating detailed images of the CSF flow. The results of this imaging study are then interpreted by a physician, who compiles a comprehensive report detailing the findings, which is essential for guiding further clinical management of the patient.