Abstract
In this paper an overview of principles involved in radiographic imaging by tomography, magnification radiography, xeroradiography, and computed tomography is presented. Tomography is a method to selectively blur distracting superimposed shadows while maintaining relative image sharpness in a plane of concern. Magnification radiography is a method to directly enlarge the radiographic image by increasing object‐film distance and utilizing a small focal spot. Xeroradiography is an electrostatic imaging process that provides wide latitude and good resolution through enhanced contrast in tissues with poor inherent contrast.Computed tomography involves imaging by computer analysis of x‐ray absorption utilizing rotational x‐ray projections.
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