CT(Computed Tomography)是计算 机断层摄影技术的简 称,它是自X射线在 医学领域应用以来一个划时代的成就,是近代飞速 发展的计算机技术和X射线成像检查技术相结合 的产物。 CT的发展历程 CT图像是通过数学重建技术完成的。早在 1917年,奥地利数学家J.Radon就从数学理论上证 明了二维或三维物体可以通过其无限多个投影的集 合唯一地重建图像。1938年德国的Cabriel Frank首 先在X线诊断中用光子方法进行图像重建。1961年 CT (Computed Tomography) is an abbreviation of Computed Tomography (CT). It is an epoch-making achievement since the application of X-ray in the medical field. It is the result of the combination of modern computer technology and X-ray imaging examination technology. The development of CT CT images are done through mathematical reconstruction techniques. As early as 1917, the Austrian mathematician J. Radon proves mathematically that two-dimensional or three-dimensional objects can uniquely reconstruct an image through a collection of an infinite number of its projections. In 1938, Germany’s Cabriel Frank first used photon imaging in X-ray diagnosis. 1961