CT, generally referred to as X-ray CT, the official name of the "X-ray computed tomography", CT is the abbreviation of its English name. Nowadays, CT equipment is available in large hospitals for the diagnosis of cerebrovascular diseases and other diseases, and it is the doctors' right-hand man.
CT is a combination of X-ray and computer technology. When it works, it scans layer by layer like a scalpel, and then it is processed by a computer and compared with normal tissue images, which can clearly show the lesions that cannot be shown by X-ray. Therefore, CT is a more advanced technology than X-ray examination. There are a number of lesions that can be examined clearly with CT.
CT can be used to examine the skull and brain as well as many internal organs, and it is very effective. However, it has a drawback, which is that it cannot be used for the examination of heart lesions. Because ordinary CT scanning speed is too slow, each scanning layer of the fastest time to 1 second, the human head X-ray CT scanning three-dimensional computer image can not overcome the impact of the heart beat, will produce shadows in the display, making it difficult for doctors to determine the condition.
Can CT accelerate the speed of scanning? Foreign scientists have developed an ultra-high-speed CT, so that ordinary CT also on the "highway".
Compared with ordinary CT, the scanning speed of ultra-high-speed CT is 40 times faster than that of ordinary CT. In this way, many diseases that could not be examined by CT before can be examined by ultra-high-speed CT, such as coronary artery disease, cardiomyopathy, pericardial disease, pulmonary embolism and so on. For some patients who are not very cooperative, such as children and the elderly, ultra-high-speed CT can also achieve good results because of its fast scanning speed, which does not require patients to remain quiet for a long time.
In addition, ultra-high-speed CT can also be used for the selection of preoperative location of coronary artery bypass grafting to know whether the blood vessel is open or not after the operation. We can say that CT on the "highway" is now the only latest and most advanced medical technology that can make a comprehensive and early diagnosis of heart disease.
Of course, ultra-high-speed CT is not a panacea, and the use of this technology does not preclude other screening methods; rather, they should complement each other. Especially for those diseases that are very complex, you can't just rely on the results of UHCT to make a diagnosis; you must use multiple methods and conduct a comprehensive examination. Moreover, the cost of ultra-high-speed CT is higher than that of general CT, which inevitably limits the scope of its use.