What is computed tomography (CT)?
- Method of diagnosis for images that uses X-rays to obtain detailed images, accurate of internal organs;
- The technique is completely atraumatic and minimally invasive (it is possible to inject intravenous iodinated contrast dye);
- The amount of X-radiation is optimized by the device to get the most of the patient’s medical information with minimum exposure;
- CT is used for diagnosis in any region of the body (head, neck, chest, abdomen, pelvis, musculoskeletal, etc);
- Our clinics are equipped with the latest multislice CT equipment
- The obtained images can be reconstructed in three dimensions then, which allowing a high assessment of investigated organs.
How do I prepare for CT?
- If examinations of the abdomen and pelvis, eat 3-4 hours before the investigation; if you suffer from diabetes or other chronic diseases you can take your basic treatment and take a light snack;
- Must remove all metal objects (watches, keys, coins, jewelry); they can affect image quality;
- You can get a gown during the investigation instead of your clothes;
- For some investigations (CT abdominopelvin) you may need to drink a liquid in clinic before investigation (20-60 minutes) for a better delineation of the intestine;
- Some CT investigations may be completed with administration of intravenous iodinated contrast dye for further characterization of lesions and to assess the function of the evaluated organs;
- You may be asked for recent blood tests, especially urea, creatinine, which bring information on kidney function; It is in your best interest to provide them; modified analyzes may contraindicate intravenous iodinated contrast administration.
- Barium examination (barium transit, barium enema) recent (less than 2-3 days) is a contraindication for abdominal CT.
How is the CT scan performed?
- You will be asked to lie down on the equipment table that will easily fit in the scanner’s center, allowing positioning the studied body region between equipment’s detectors and x-ray;
- CT detectors field is broad, permissive, so you do not have claustrophobia events; – During the examination, the table moves slightly;
- You are constantly supervised by a physician operator throughout the investigation, audible and visual;
- During the examination, you must stay still;
- You can receive respiratory commands (“pull breath and not breathe” etc.) or positioning (“raise your hands above your head”);
- Some examinations require intravenous injection of contrast medium to improve visualization of internal organs; you may feel local or entire body warmth during injection; this is a normal reaction;
- A small percentage of patients experienced transient nausea, but it usually passes quickly;
How long is a CT scan?
- Scanning may take a few seconds, but patient positioning, appliance and repeat scanning after injection of contrast material can take up to 20 minutes;
- After completion of investigation you may be asked to wait until the doctor examines the images to decide whether you need additional scans or not.
TO BE CONSIDERED:
- Tell your doctor if you are pregnant; There are severe restrictions on CT examination, because the fetus may be affected; The exception is if the mother’s life is in danger (ex. intracerebral hemorrhage secondary to vascular malformations) when the benefit outweighs the risk of irradiation;
- Tell your doctor if you have kidney problems or diabetes; they may contraindicate depending on severity, intravenous administration of contrast medium;
- For a small number of patients the iodinated contrast can trigger allergic reactions (skin redness, rarely swelling of the face or breath shortness);
- Allergy risk is increased in patients with a history of allergies or asthma in the past; Tell your doctor before investigation;
- Allergic reactions can be prevented or treated with specific drugs.