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Cerebrospinal fluid (CSF) flow imaging is a diagnostic procedure that utilizes single photon emission computed tomography (SPECT) to visualize the movement of cerebrospinal fluid within the brain and spinal canal. This imaging technique employs a radiolabeled isotope tracer, which is introduced into the CSF through a lumbar puncture. The primary purpose of this study is to identify any abnormalities in CSF flow, which may include conditions such as communicating and non-communicating hydrocephalus, as well as fistulas that may connect a CSF reservoir (cistern) to the nasal cavity or ear. Understanding the dynamics of CSF is crucial, as it is produced in the lateral ventricles and flows through various structures, including the foramen of Monro, the third and fourth ventricles, and into the subarachnoid spaces. The movement of CSF is influenced by several factors, including pressure gradients and pulsatile motion associated with the cardiac cycle. During the SPECT procedure, the patient is positioned on an imaging table, and gamma cameras are utilized to capture detailed images of the CSF flow, which are then processed to create a three-dimensional representation of the spinal canal, ventricles, and cisterns. The results of the imaging study are interpreted by a physician, who subsequently provides a comprehensive written report detailing the findings.
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The cerebrospinal fluid flow imaging procedure is indicated for the evaluation of various conditions related to abnormal CSF dynamics. The following are the specific indications for performing this imaging study:
The procedure for cerebrospinal fluid flow imaging using SPECT involves several critical steps to ensure accurate imaging and assessment of CSF dynamics. The following outlines the procedural steps:
Following the cerebrospinal fluid flow imaging procedure, the patient may be monitored for a short period to ensure there are no immediate complications from the lumbar puncture. It is important to observe for any signs of headache, infection, or other adverse effects. Patients are typically advised to remain hydrated and may be instructed to rest for a period after the procedure. The physician will provide a written report detailing the findings from the imaging study, which will be discussed with the patient in a follow-up appointment to determine any necessary further actions or treatments based on the results.
| Short Descr | CEREBROSPINAL FLUID SCAN | Medium Descr | CEREBROSPINAL FLUID FLOW W/O MATL TOMOG SPECT | Long Descr | Cerebrospinal fluid flow, imaging (not including introduction of material); tomographic (SPECT) | Status Code | Active Code | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 1 - Diagnostic Tests for Radiology Services | Multiple Procedures (51) | 0 - No payment adjustment rules for multiple procedures apply. | Bilateral Surgery (50) | 0 - 150% payment adjustment for bilateral procedures does NOT apply. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 0 - Payment restriction for assistants at surgery applies to this procedure... | Co-Surgeons (62) | 0 - Co-surgeons not permitted for this procedure. | Team Surgery (66) | 0 - Team surgeons not permitted for this procedure. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | APC Status Indicator | Procedure or Service, Not Discounted when Multiple | Type of Service (TOS) | 4 - Diagnostic Radiology | Berenson-Eggers TOS (BETOS) | I1E - Standard imaging - nuclear medicine | MUE | Not applicable/unspecified. | CCS Clinical Classification | 209 - Radioisotope scan and function studies |
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| 2019-12-31 | Deleted | Code deleted, see 78803 |
| 1995-01-01 | Added | First appearance in code book in 1995. |
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