CT scan of the paranasal sinuses: what shows and how do
How to make a CT scan of the sinuses?
Even the, at first glance, common cold, inappropriate or substandard treatment can have serious consequences. Due to the fact that in the chronic stage of these diseases is much more difficult to treat, a CT scan of the sinuses is necessary for timely diagnosis.
By itself, CT scan of the sinuses does not mean any additional training. With all of this, this method is considered to be one of the most informative and effective in diagnosis at an early stage.
What sinuses are exposed to CT scan?
There are four types of cavities that are exposed to imaging:
- The sphenoid cavity. Located in the heart of the sphenoid bone.
- Of the maxillary sinus. Located in the heart of the upper jaw, and therefore referred to as the maxillary cavity.
- The labyrinth of the ethmoid. Consists of grid cells.
- The frontal cavity. Is located above the eyebrows in the frontal bone.
Modern computed tomography of the paranasal sinuses, is often in the presence of the following complaints from the patient: the headaches, the systematic congestion of the nasal passages, shortness of breath, a toothache.
In addition, you need to seek help for pain in the throat, congestion of the ears, swelling of the nose. You need to pay attention to the following reasons:
- In the presence of pulsating pain of the head, the cause of which is unknown.
- Damage paranasal sinuses.
- When finding a foreign object in the nasal cavities.
- When there is a risk of possible hemorrhage.
- As systematic inspection, if it were sinus disease.
- If you suspect the development of purulent processes, neoplasms and tumors.
- If the patient had severe facial injuries, head or cranial damage.
- As to repeat the procedure due to inadequate treatment of sinusitis.
- Frequent epistaxis due to hypertension.
- Inflammation or accumulation of pus in the lacrimal SAC.
Read also the article about the anatomy of the sinuses to understand the reasons for the appointment of KT.
Before using this diagnostic method, you must know about possible contraindications. This is very important because otherwise there may be irreversible consequences. In the list of contraindications include:
- Diagnosis pregnant women because of the potential risk of malformation of the fetus.
- Diagnostics for small children, is relevant only in case of urgent need.
- This method is prohibited for people with individual intolerance to iodine.
- Due to the fact that it is necessary to lay a long time motionless, it is impossible to diagnose people with Parkinson’s disease and other ailments, for which there is involuntary movement of body parts.
- Prohibited the use of this method nursing mothers.
- You cannot use CT of the sinuses, people having heart problems, diabetes mellitus and liver/renal failure.
That can detect the scan?
Specialist examines slices of the sinuses for more information. So what shows CT scan of the sinuses? The information that the physician can carefully examine the scope, structure, salinity and density of the sinuses.
This method of diagnostics can provide much objective information and data that will help further the diagnosis, the choice of a range of health measures and ongoing monitoring for disease.
Delayed diagnosis, allows to avoid possible complications. With the help of computer tomography, it is possible to detect the following pathologies:
- Sinusitis at any stage.
- All types of sinusitis.
- Frontal sinusitis.
- Benign and malignant tumors of the mucous membranes.
- You can learn about the cause of the inflammation and on the basis of this information to work out effective methods of treatment.
- It is possible to establish the cause of frequent migraines.
- Any physical damage to the facial bones of the nose.
- The method makes it possible to determine the presence of foreign bodies.
How is the procedure?
Before doing a CT scan of the sinuses, is not required to prepare any special method. The procedure is done on a scanner that includes a set of diagnostic techniques. The information gathered by the x-ray unit, is transmitted to the screen in real time.
The specialist creates images at different angles, which in technical language are called slices. All that is required from the patient to remain motionless on the couch, which will be advanced into the machine. On the basis of the diagnostic purposes, the specialist determines the status of the patient.
The patient should be fully immobilized, therefore, to limit its movement using special fixing belts. It is necessary that the photo was not damaged, even a slight movement. Next person is recorded together with the couch in the CT apparatus.
Some studies imply the need to hold your breath for a few seconds. The time of the procedure, often exceeds 10 minutes.
Scanning is absolutely safe and totally painless. When the procedure is performed using contrast material, and upon its completion, you must drink plenty of fluids as soon as possible to get rid of it.
As soon as pictures are received, they are passed to the patient or the treating specialist, together with all information regarding the course of disease. Images can be printed, but in modern hospitals, is increasingly used digital storage method.
The first transcript deals with the radiologist, after ENT shall prescribe the necessary treatment or to write a referral to another specialist, such as oncologist or surgeon (if necessary). A method of computed tomography is considered to be one of the most prolific and informative of them all.
For all history of existence of this method of scanning, millions of people were able to receive timely treatment.