Computed tomography of the skull and brain

The main advantages of the method in the diagnosis of conditions and diseases of the brain, indications, contraindications, types of computer tomography of the brain.

Computed tomography (CT) scan of the brain is one of the most informative methods for diagnosis of bone traumatic injuries and intracranial volume processes, as well as the method of evaluating the state of the brain after the operation, including the presence in the brain tissue of metallic bodies (hemostatic clipsimposed on vessels).

In this three-dimensional reconstruction, used in

all modern CT scanners, plays a very important in planning surgical treatment.

Computed tomography of the brain is one of the most informative methods for diagnosis of bone traumatic injuries and intracranial volume processes, as well as the method of evaluating the state of the brain after the operation, including the presence in the brain tissue of metallic bodies (hemostatic clips imposedon vessels).

In this three-dimensional reconstruction, used in all modern CT scanners, plays a very important in planning surgical treatment.The big advantage of CT is the possibility of differential diagnosis of acute cerebral circulatory disorders (hemorrhagic or ischemic stroke), which is extremely important for the choice of treatment.This allows the use of CT for emergency diagnosis.

brain research is conducted in 2 versions:

  1. without contrast - has no contraindications except pregnancy.
  2. C /-governmental contrast - angiography - used
  • to clarify the nature and extent of changes detected,
  • to monitor the effectiveness of the treatment (including chemotherapy and radiation therapy),
  • to assess the condition of vessels, theirpatency, blood volume,
  • to assess the development of collateral flow,
  • to assess the state of the venous sinuses of the dura mater (with meningiomas).

Indications for computed tomography:

  • Traumatic brain injury, including suspected basal skull fracture, gunshot wounds, suspected post-traumatic hematoma with signs of intracranial hypertension.
  • Volumetric brain formation and its membranes (tumor, simple and parasitic cysts, space-occupying lesions of the pituitary - vnutrisellyarnye tumor).
  • acute cerebrovascular accident, their complications, hematoma, hemorrhage, venous thrombosis, etc.
  • Congenital vascular malformations (malformation, aneurysm).
  • Suspected pathology likvorosoderzhaschih brain structures (cysts, hygroma, etc.).
  • purulent intracranial processes (brain abscess, complications of purulent meningitis, etc.)
  • rapidly progressive neurological focal symptoms, accompanied by persistent headache, increased intracranial pressure, suspicious to surround the process of unknown origin.
  • Monitoring the effectiveness of the treatment

Contraindications for computed tomography

Absolute contraindications (except for research for health reasons) is pregnancy.The rest of the contraindications for CT only concern research with contrast: allergy to iodine-containing drugs, hyperthyroidism, decompensated phenomenon kidney and liver failure, severe course of chronic diseases, convulsions.

Computed tomography sella

Very often aiming CT sella when searching for brain pathology complemented CT sella, but in some cases CT sella can be conducted as a separate study.

As is known, the Turkish saddle is a small bone vmestilitse pituitary gland located at the base of the skull, and directly in front of him is chiasm - optic chiasm.

Therefore, many voluminous benign and malignant processes in the pituitary gland and the surrounding tissue (including the meninges) lead to sella strain, and often visual impairment due to compression of the optic chiasm.All this makes it indispensable in the study of CT sella, although doctors often choose MRI.

Indications for CT sella

  • suspected volumetric education sella and the surrounding departments (pituitary adenoma and adenocarcinoma);
  • identify hormonal disorders associated with pituitary gland or hypothalamus-pituitary of the nervous system (such as increased production of the hormone prolactin, menstrual disorders, etc ..),
  • malformations.

can be used in 2 versions:

  • without contrast.
  • with contrast - this allows you to specify the nature of the bulk of the process in the pituitary gland, the features of its blood supply and more accurately determine the prevalence of cancer.

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