Perception of computer simulated pulmonary lesions in chest radiographs
John M. DeGroot, Ernest L. Hall, R. Sutton, Gwilym S. Lodwick, Samuel J. Dwyer · 1972
Simulated abnormalities in radiographs may be used to investigate a number of problems of interest to radiologists. First, in the study of radiographic image quality, the manner in which physical image quality affects perception and diagnostic ability may be quantitatively explored. Second, since the increasing demand for diagnostic radiological examinations has stimulated studies to determine whether the effectiveness and efficiency of radiologists can be increased by the use of trained technical assistants, the simulated abnormalities provide a useful method for trained technical assistants, the simulated abnormalities provide a useful method for training and evaluation of the technical assistants. Previous radiographic simulations have been made using photographic and television systems; however, digital computer simulation provides greater flexibility and quantitive control. The purpose of this paper is to describe a system for digital simulation of nodular lesions in chest x-rays.