Computed tomography (CT) is one of the most effective methods for diagnosing diseases. The main advantage of CT is to obtain detailed information about the structure and condition of organs and systems in a short period of time. CT scans in detail for structures that are not visible on conventional X-ray images. Detailed CT scans make it possible to trace all changes in the studied areas, as accurately as possible to determine the problem and make the correct diagnosis. CT allows examining any bone structure, joints, brain, and spinal cord, pelvic organs, abdominal cavity and chest, blood vessels.
Computed tomography is successfully used to diagnose damage to the brain and skull bones, hemorrhagic strokes. Allows you to see the tumor and inflammatory processes, developmental anomalies, prescribe timely treatment, plan surgical intervention.
At the same time, the risk of adverse effects on the body due to low radiation exposure is minimal, and the examination time is reduced in comparison with the usual procedure.
MSCT of the brain can be done at Ramsey Diagnostics centers.
Doctors prescribe an examination if the following symptoms are present:
- traumatic injuries of the brain and skull bones
- suspected hemorrhage
In addition, diagnostics may be needed in preparation for surgery and in the postoperative period.
Computed tomography provides the safest access for diagnostic brain biopsy.
What does a CT scan of the brain show?
- injuries – areas of bruises, sheath hematomas
- hemorrhagic stroke
- ischemic stroke (suspicion of stem infiltration – indication for MRI)
- cysts are simple and parasitic
- inflammation of the substance (encephalitis), including with the formation of abscesses
- vascular anomalies
- a number of developmental anomalies
Early diagnosis of a tumor
Today, there is an increase in the incidence of cancer worldwide. The development of radiological methods and their widespread use contribute to the diagnosis of oncological diseases in the early stages. The survival rate directly depends on the severity of cancer.
Computed tomography is used as an additional method in determining the tumor. The examination is performed if there are absolute contraindications to MRI.
The earlier the procedure is carried out, the more likely it is to detect metastases and determine the oncological disease, which in the future has a positive effect on the accuracy of the treatment.
To clarify the nature of pathological changes, the doctor may prescribe MSCT with contrast. In this case, an iodine-containing contrast agent is used, which more clearly visualizes the state of the brain. This is especially true for neoplasms. The time of the procedure with contrast enhancement increases.
To diagnose blood vessels and create a 3D image, another procedure is used – CT angiography of the vessels of the brain.
For a study with contrast, it is necessary to make analyzes urea and creatinine. Otherwise, it does not differ from the standard preparation for CT.
The absolute limitation is pregnancy, breastfeeding, allergic reactions to contrast media. More information about them can be found on the website in the section Contraindications to computed tomography.
In addition to CT / MSCT, the Ramsey Diagnostics centers provide an opportunity to do an MRI of the brain.
The centers carry out examinations of children over 14 years old.
Differences between MSCT and CT
Multispiral computed tomography is many times superior to the capabilities of conventional CT and allows you to shorten the examination time, reduce the radiation exposure to the patient, and obtain clearer images, which is the key to making the correct diagnosis. When performing multispiral tomography, the X-ray dose is reduced by 66% and the examination speed is significantly increased.