The contrast agent in blood vessels is opaque to X-ray, and the hemodynamic manifestations of pulmonary lesions are different from those of normal tissues. Therefore, through enhanced examination, we can distinguish normal tissues from pathological tissues, and we can also use it to identify the specific properties of pathological tissues.
Chest enhanced ct can clearly show the lesions in lung, heart and great vessels, and can better show the relationship between masses or lymph nodes and surrounding vessels, and evaluate whether it can be surgically removed.
Extended data:
1, CT examination uses X-ray imaging, and there is radiation injury. Pregnant women or pregnant women are not suitable for CT examination, so they need to be informed in advance.
2. A small amount of iodine contrast agent used for diagnostic injection will be excreted through breast milk, and lactating women should inform them in advance.
3. Children or critically ill patients need to be accompanied by medical staff.
4. Before the inspection, the clothes with metal substances in the inspection site must be taken off, because metal will cause artifacts and affect the diagnosis.
5. Cooperate with the doctor to train your breathing before the examination, and avoid moving during the examination.
6. If you do lung enhancement CT, tell the doctor whether you have any allergic history and what kind of drugs or foods you are allergic to, and let the doctor weigh whether you can do this examination.
References:
Baidu encyclopedia-enhanced CT