Potential Patient Pathways Normal Pressure Hydrocephalus


In order to determine the potential patient pathway, a healthcare team will use one or more of a variety of possible diagnostic tests. They will also consider any other conditions present. 

Diagnostic Procedures

There are several diagnostic tests that can help in diagnosing hydrocephalus. These same studies can also help evaluate the shunt in case of malfunction or infection.

Computed Tomography

Computed Tomography (CT) scans use tiny beams of x-ray to outline the skull, brain, and ventricles. In addition to visualising the size and shape of the ventricles, abnormalities such as tumours, cysts, and other pathology can also be seen.

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a non-invasive diagnostic tool that uses radio signals and a magnet to form computer images of the brain and the ventricles.

Neuropsychological Tests

This series of questions and answers helps the healthcare team determine if hydrocephalus is causing a decrease in brain functioning. 

Lumbar Puncture or Spinal Tap

The lumbar puncture or spinal tap is an invasive diagnostic test that allows CSF to be removed for examination and the pressure of CSF within the spinal column to be measured. 

Controlled Lumbar Drainage

A technique used to externally drain cerebrospinal fluid. The test is used to determine if an individual with normal pressure hydrocephalus will improve if a shunt is implanted. 

Lumbar Infusion Test

With this specialised technique, fluid is injected into the lumbar area of the spine. This procedure is used for individuals with normal pressure hydrocephalus to determine their cerebrospinal fluid absorptive capacity.