When a person experiences a head injury that results in the inability to wiggle their toes, there is likely damage to the area of the brain responsible for controlling movement of the feet.
A CT (computed tomography) scan is an imaging technique that uses X-rays and computer processing to create detailed images of internal structures within the body. To locate which specific area of the brain is damaged and causing this loss of toe wiggling ability, a CT scan can be used.
Firstly, a contrast dye may be injected into the bloodstream or swallowed so that blood vessels and tissues are highlighted on the resulting image. This will help identify any areas where there might be bleeding or swelling from trauma.
Then, multiple x-ray images are taken from different angles around your head using specialized equipment called a CT scanner. These images are processed by computer software to produce cross-sectional pictures ("slices") of your brain.
Doctors can examine these slices closely to look for any structural abnormalities such as fractures or tumors in relevant areas associated with movement control like motor cortex(primarily precentral gyrus). Hence they could pinpoint an exact location where damage has occurred leading towards paralysis/loss-of-movement-control phenomena observed post-injury.
In summary, through analyzing high-resolution computed axial tomography scans doctors can find out critical locations deep inside our body concerning certain functions related regions mapping giving us insights about injuries suffered at those sites & thus plan patient treatment accordingly .