Image subtraction by solid state electroradiography
B G Fallone; E B Podgorsak; B G Fallone; Dept. of Radiation Oncology & Diagnostic Radiology, McGill Univ., Montreal, Que., Canada; E B Podgorsak; Dept. of Radiation Oncology & Diagnostic Radiology, McGill Univ., Montreal, Que., Canada
Журнал:
Physics in Medicine and Biology
Дата:
1984-06-01
Аннотация:
An analog radiographic image subtraction technique is presented. A selenium photoconductor is used as the radiation sensitive medium and image subtraction is achieved by electrostatically adding latent images of opposite polarities to get a latent image of the region of interest. In principle, the technique is simple and a comparison with commercial digital techniques shows a similar image quality, suggesting that the electrostatic subtraction technique could be developed into a clinical tool as an inexpensive alternative to digital radiography.
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