What is the tonogram?
The oven is a diagnostic test that uses X -ray images to monitor the flow of a special dye through the veins of the body. Radiologists can perform a test to look for blood clots, tumors and unusually wide or narrow veins. In addition, the venogram can be considered to identify healthy blood vessels that can be transplanted into the heart or neck for a bypass procedure. The test is usually fast, painless and highly effective in discovering physical abnormalities that cannot be easily studied in other diagnostic tools.
When the patient is scheduled for the oven, he is usually asked to avoid food or drink something other than water on the day of the test. A thorough medical history is made to ensure that the procedure is safe and that the patient is not allergic to the dye. The patient is equipped with a hospital dress and brought to the radiological laboratory for testing. He or she lies on the table so that the specialist can sterilize the place of injections that can be in the leg, weakness, arms or torso. CanBeing a local anesthetic temporarily anesthesia of the site.
As soon as the patient is ready, the radiologist injects a contrasting dye containing iodine or bar solution into the vein. The dye travels to the blood vessels near the injection site and leaves a trail that is easy to detect in X -ray images. Then a set of X -rays is taken from several different angles. After the procedure, the radiologist can ask the physiological solution into the vein to dilute the dye and thinner blood to prevent clotting. The patient is then transported to the hospital room and instructs a lot of water to help flush the dye from its system.
The images are carefully reviewed by a trained specialist in radiology. It compares X -rays from different angles and identifies the size, location and nature of abnormalities. If the path of the dye is suddenly disturbed, specialistam can be quite convinced that there is a blood clotEnina. Tumors and structural defects can be discovered if the dye monitors an unusual path. In addition, veins that are cracked, weak or too wide may be detected based on the dye movements.
The most common reason for the venogram is to check the condition called thrombosis of deep veins (DVT). DVT is a large, rapidly developing blood clot in one of the main blood vessels in the leg that can disrupt blood flow to the heart and maybe lead to a heart attack or stroke. Ultrasound and conventional X -rays are often insufficient in determining the location and severity of the DVT, but the oven is usually very effective. The treatment decision is made immediately after the nanogram test to provide the best chances of recovery.