Cerebrovascular diseases, intracranial infections, intracranial tumors, and congenital brain diseases can be detected by CT brain. CT brain is mainly used to determine whether there is brain damage based on the morphology of brain tissue and changes in brain tissue density. CT brain can be categorized into three types: plain scan, contrast enhancement and special scan.
1. Cerebrovascular disease: fresh hematoma is a high-density lesion with uniform density and clear edges. Cerebral infarction can be characterized by low-density lesions in the form of fan-shaped, wedge-shaped, or punctate patches.
2. Intracranial infections: Enhanced scans are often required. Brain abscesses are characterized by ring-like thin-walled enhancement, nodular enhancement, and tuberculous meningitis is characterized by lamellar enhancement.
3. Intracranial tumors: CT of the brain can show tumors in different parts of the brain, which manifest as cystic, necrotic, calcified and other lesions with different features, and show different degrees of enhancement in the enhancement scan.
4. Congenital diseases of the brain: hydrocephalus is characterized by different degrees of ventricular enlargement, while arachnoid cyst is a space-occupying lesion consistent with the concentration of cerebrospinal fluid.
In addition, brain CT can be used for craniocerebral injuries and brain parasitosis. It is recommended that patients with relevant symptoms seek prompt medical attention and choose a reasonable test under the guidance of a doctor.