The method of computed tomography ( CT) scan of the brain

Contents:

1. When appointed?

2. Contraindications

3. How to prepare?

CT brain - a non-invasive X-ray inspection method, which allows you to get a lot of shots (small slices with a pitch of less than 1 mm) of this body.They are used to create a three-dimensional image formation and cerebral vessels.This information allows to confirm or exclude the presence of a brain tumor, acute stroke, traumatic brain injury, and other pathologies.

During the procedure, the examinee is placed on a special movable couch and his head fixed straps.Couch with a patient calls in the inside of the tunnel and then moves smoothly.During diagnostic scanner rotates around the patient's ring.The subject hears a noise, which does not give him much inconvenience.During the session, the patient is in the office of one, and the doctor conducting the study, watching him through a special window.Talking with your doctor can be on a special two-way communication device.

scanning procedure is performed in three steps:

  • X-rays pass through the surface tissue and recorded by special sensors, which immediately transmit the information to the device.
  • collected data is converted into a digital format device.After scanning a single layer, a CT scanner starts scanning another.
  • computer collects and analyzes information from all sensors, and then produces a 3D reconstruction of blood vessels and the brain.This specialist has the opportunity to examine in detail each piece of the picture.

When performing CT of the brain may require administration of intravenous contrast material.

The whole procedure takes about 10 minutes if using contrast - 15-20 minutes.

When he appointed?

Indications for CT of the brain following:

  • Suspected meningitis.
  • Circulatory disorders and strokes in the study area.
  • Getting craniocerebral injury, accompanied by loss of consciousness, increased intracranial pressure, epilepsy, seizures, vomiting.
  • Suspected hemorrhage, hematoma, a blood clot in the veins and vessels of the brain.
  • confusion, paralysis, sensory disturbances, dizziness, poor eyesight, disorders of function and structure of the ear, damage to the auditory ossicles and auditory nerve.
  • diagnosis of tumors (malignant and benign).
  • Chronic headaches that occur with neurological symptoms.
  • monitoring the effectiveness of treatment of brain pathologies,
  • survey before surgery and biopsy.

Contraindications

CT brain research has practically no contraindications (except for the patient's weight is more than 130 kg, inadequate mental patient behavior, claustrophobia and pregnancy).

CT with contrast is performed taking into account the health status of the patient and not recommended for:

  • Allergy to contrast agents, or its components (including iodine).
  • diabetes (severe).
  • Hepatic or renal insufficiency.

When lactation simply adjust the feeding scheme.

How to prepare?

special preparation for a brain CT is not needed.Before the introduction of the contrast is recommended not to eat for 2-3 hours, to avoid nausea.

Immediately before the start of the study to the patient should be removed from all metal jewelry, as well as sunglasses and a variety of devices (eg, hearing aids).The clothes must be put on the most convenient.With a

advisable to take the results of previous studies to clarify the clinical picture.

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