How does brain CT look?

When looking at brain CT, it is to observe whether there is abnormal density and judge whether there are organic lesions in the brain and head. First, observe whether the skull is complete. The skull presents a high density shadow on brain CT. Observe whether there is fracture line, separation or fracture in the skull. It can help to determine whether there is fracture caused by trauma. Secondly, observe the situation in the brain. The brain parenchyma of the patient presents isodensity shadow on CT, the cerebrospinal fluid presents low density shadow in the ventricle, and occasionally some calcifications are distributed in the globus pallidus, pineal gland, cerebral falx or choroid plexus, presenting high density shadow. In addition, if abnormal density is shown, it is an abnormal lesion. For example, cerebral infarction appears in the brain parenchyma and shows low-density shadow, and cerebral hemorrhage appears in the brain parenchyma or ventricles and subarachnoid space and shows high-density shadow. Brain tumors show more mixed density, and some also show low-density shadows, surrounded by large edema zones.