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1 CT工作原理CT又称计算机体层摄影(computed tomography),是应用X射线对人体进行某一层面(通常是横断面)的扫描,通过这一层面的光子由检测器转变为信息,并将所获取的信息,经电子计算机处理重建成图像。由于CT检查具有无创伤、能清晰区分密度不同的组织等优点,使病变的发现率得到了提高,而且能进行定性诊断,使得检查更方便,诊断更准确,CT检查在临床上的广泛应用,使CT产品越来越得到患者的认可。目前,CT的应用已拓展到一些新的范围,同时一
1 CT works CT, also known as computed tomography (computed tomography), is the application of X-ray on the human body to a level (usually cross-sectional) scan, through this level of photons from the detector into information and will The information obtained is processed by electronic computer to reconstruct the image. CT scan has the advantages of noninvasive ability to clearly differentiate the tissues with different densities and improves the detection rate of lesions, and can be used for qualitative diagnosis, which makes the examination more convenient, the diagnosis is more accurate, the clinical application of CT examination is extensive, Make CT products get more and more patient’s approval. At present, the application of CT has been extended to some new areas, meanwhile