Computational tomography of the skull and the brain

Introduction To Ct Head: Approach And Principles (Health And Medical Video June 2018).

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.

Computer tomography (CT) of the brain is one of the most informative methods for diagnosis of bone traumatic damages and intracranial volume processes, as well as a method for assessing the state of the brain after performed operations, including the presence of metallic bodies in the brain tissue (hemostatic Clips that are superimposed on the vessels).

In this case, the three-dimensional reconstruction, which is used in all modern computer tomographs, plays a very important role in the planning of surgical treatment.

Computer tomography of the brain is one of the most informative methods for diagnosis of bone traumatic lesions and intracranial volume processes, as well as a method for assessing the state of the brain after performed operations, including the presence of metal bodies in the brain tissue (hemostatic clips that Superimposed on vessels).

In this case, the three-dimensional reconstruction, which is used in all modern computer tomographs, plays a very important role in the planning of surgical treatment. The great advantage of CT is the possibility of differential diagnosis with acute cerebrovascular disorders (hemorrhagic or ischemic stroke), which is extremely important for choosing a treatment method. This allows you to use CT for emergency diagnostics.

Research of a brain is carried out in 2 modifications:

  1. No contrast - no contraindications, apart from pregnancy.
  2. With intravenous contrast - angiography - is used
  • To clarify the nature and prevalence of detected changes,
  • To monitor the effectiveness of the treatment (including chemotherapy and radiation therapy),
  • To assess the status of vessels, their patency, blood flow,
  • To assess the development of collateral blood flow,
  • To assess the condition of the venous sinuses of the solid cerebellum (with meningiomas).

Indications for computer tomography:

  • Craniocerebral trauma, including suspected fracture of the base of the skull, gunshot wounds, suspicion of post-traumatic hematoma with the phenomena of intracranial hypertension.
  • Volume formation of the brain and its membranes (tumors, simple and parasitic cysts, volume formation of the pituitary gland - intracerebral tumors).
  • Acute violations of cerebral circulation, their complications, hematomas, hemorrhages, venous thromboses, etc.
  • Congenital vascular abnormalities of development (malformations, aneurysms).
  • Suspicion of the pathology of liquor-containing structures of the brain (cysts, hygroms, etc.).
  • Purulent intracranial processes (abscess of the brain, complications of purulent meningitis, etc.)
  • Rapidly progressive neurological focal symptoms, accompanied by persistent headache, increased intracranial pressure, suspicious of a bulk process of obscure origin.
  • Control of the effectiveness of the treatment

Contraindications for computer tomography

Absolute contraindication (besides studying on vital indications) is pregnancy. Other contraindications for CT are limited to conducting contrast studies: allergy to iodine-containing drugs, hyperthyroidism, decompensated renal and hepatic insufficiency, severe course of chronic diseases, convulsive syndrome.

Computer tomography of the Turkish saddle

Very often the aiming CT of the Turkish saddle in the search for pathology of the brain is supplemented by the CT of the Turkish saddle, but in some cases, the CT saddle can be conducted as an independent study.

As you know, the Turkish saddle represents a small bony placenta of the pituitary gland, located on the base of the skull, and directly in front of it is a chiasma - the intersection of the optic nerves.

Therefore, many voluminous benign and malignant processes in the pituitary gland and surrounding tissues (including the cerebral membranes) lead to the deformation of the Turkish saddle, and often to the disturbance of vision due to compression of the chiasm. All this makes an irreplaceable CT in the study of the Turkish saddle, although often doctors choose MRI.

Indications for computed tomography of the Turkish saddle

  • Suspicion of volumetric education in the Turkish saddle and adjacent divisions (adenomas and adenocarcinomas of the pituitary gland);
  • Detecting hormonal disorders associated with the work of the pituitary gland or the hypothalamic-pituitary gland of the nervous system (for example, increased production of prolactin hormone, menstrual irregularities, etc.),
  • Anomalies of development.

Can be used in 2 modifications:

  • No contrast.
  • With contrasting - this allows you to detail the nature of the bulk process in the pituitary gland, especially its blood supply and more precisely determine the prevalence of the tumor process.

Computational tomography of the skull and the brain

Category Of Medical Issues: Diseases

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