64-slice spiral CT scan

64-slice spiral CT is a new method for diagnosing coronary heart disease, which is not inferior to coronary angiography. The biggest advantage is that it is non-invasive. The patient can clearly display the stereoscopic image of the coronary artery by intravenous injection of 60-80 ml of developer. It is characterized by a high negative predictive value, that is, 64-slice spiral CT is normal, and coronary angiography will be normal. Basic Information Specialist Category: Inspection Category: CT Applicable gender: whether men and women apply fasting: not fasting Tips: Remove the inspection area including underwear with metal materials and various items: headwear, hair clips, earrings, necklaces, jade, coins, belts and keys. Normal value There was no abnormality in the angiography. Clinical significance Abnormal results can be examined by angiography to understand the occurrence and development of coronary atherosclerosis, and can also compare the effects before and after drug treatment. 64-slice spiral CT can also check the blood vessels in various parts of the body, such as vascular imaging of the head and neck artery, can diagnose the neck and intracranial vascular lesions; aortic imaging can clearly diagnose common lesions of the aorta, such as the main The diagnosis of arterial dissection and aortic aneurysm can clearly show the aorta walking, wall condition, calcification, stenosis and dilatation of the lumen, location of the aortic dissection, number, extent of involvement, aortic dissection After follow-up, pulmonary artery imaging can show pulmonary artery tree, clear diagnosis of pulmonary embolism, lower extremity vascular imaging, great help in the diagnosis of lower extremity arterial stenosis and venous thrombosis, and can also be used for simulated colonoscopy and simulated bronchoscopy. . People who need to check: 1. For the purpose of medical examination. Middle-aged and elderly people over the age of 40, who have coronary heart disease risk factors, in order to understand the coronary atherosclerosis, for future comparison. 2. Used to identify treatment. For the inability to rule out coronary heart disease, it is necessary to distinguish it from menopausal syndrome (clinical heart) or biliary heart syndrome or neck syndrome. In order to confirm the diagnosis, a 64-row spiral CT is required. 3. Those who need surgery for valvular heart disease, who are preparing for coronary artery bypass surgery, those who have old myocardial infarction complicated with ventricular wall pain are required to undergo surgery. 64-slice spiral CT examination should be performed to understand the coronary artery condition. Precautions Taboo before inspection: 1. Before the examination, the CT doctor should be informed of the detailed medical history and various examination results. If you have your own saved X-ray film, magnetic resonance film and previous CT film, you need to submit it to CT doctor for reference. 2, to explain to the doctor whether there is drug allergy, whether it has asthma, urticaria and other allergic diseases. 3, remove the inspection site clothing including underwear with metal materials and various items: such as headwear, hairpins, earrings, necklaces, jade, coins, belts and keys. 4, need to enhance the person before fasting for 4 hours. 5, if CT enhanced scan or children, unconscious, need to be accompanied by healthy people. 6, CT enhanced scan If you use ion contrast agent, you need to do intravenous injection of iodine allergy test, no response after 20 minutes, before you can check. 7, do not take heavy metal drugs within 1 week, do not do gastrointestinal tincture examination. Patients who have been tested for expectorant need to wait for the sputum to empty; if they are eager to have a CT examination, they should be treated with a cleansing enema or oral laxative to sputum. Requirements for inspection: 1. Obey the instructions of the technicians during the inspection, keep the position and do not move, and cooperate with the examination to calmly breathe, hold your breath, do not swallow, and do not blink your eyes. 2. The CT machine is equipped with a walkie-talkie. If there is any discomfort during the examination or an abnormal situation occurs, the doctor should be informed immediately. Inspection process The heart rate needs to be controlled at 70 beats/min or less, and the beta rate is generally controlled in the CT room. Contrast was performed after intravenous injection of 60 to 80 ml of the developer. Not suitable for the crowd Inappropriate people: patients with premature beats and atrial fibrillation should not perform this test.

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