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1972年 Hounsfiled 博士发明的 X 线 CT,把传统 X 线摄影和计算机技术相结合,将影像检查技术带入一个新的划时代的阶段。30多年来,CT 的硬、软件技术经历了几次大的革命性的进步,第1次是1989年在 CT 传统单层旋转扫描的基础上,采用了滑环技术和连续进床技术从而实现了螺旋扫描(helical or spiral CT);第2次是1998年推出的多层螺旋CT(Multi-Detector CT.MDCT or Multi-Slice CT,MSCT),使得机架 X 线管围绕人体旋转1周能同时获得多幅断面图像,大大提高了扫描速度;第3次是2004年64层 CT 的问世,将探测器宽度扩展到40 mm,开创了容积数据成像的时代,很好
The radiographic CT invented by Dr. Hounsfiled in 1972 combined traditional radiography and computer technology to bring imaging technology to a new epoch-making phase. For more than 30 years, CT hardware and software technology has undergone several major revolutionary advances. The first was based on traditional single-slice spiral CT scan in 1989, using the slip ring technology and continuous-bed technique The second is the Multi-Detector CT (MDCT) or Multi-Slice CT (MSCT) launched in 1998, which enables the X-ray tube to rotate around the human body for one week At the same time, multi-section images were obtained, which greatly improved the scanning speed. The third time was the 64-layer CT in 2004, which extended the detector width to 40 mm and started the era of volumetric data imaging.