Publications [#268582] of James T. Dobbins

Papers Published
  1. Hasegawa, BH; III, JTD; Peppler, WW; Cusma, JT; Mistretta, CA; Kudva, BV; Lysel, MSV; Lee, C-S; Naimuddin, S; Lancaster, JC; Molloi, S; Melbye, KM, FEASIBILITY OF SELECTIVE EXPOSURE RADIOGRAPHY., Proceedings of SPIE - The International Society for Optical Engineering, vol. 454 (1984), pp. 271-278 .

    Several selective exposure radiography techniques currently are being investigated. They include compensating filters placed manually in the x-ray field as well as fan-beam geometries in which the x-ray tube output is modulated with a feedback circuit to maintain constant exposure to the image receptor. At the University of Wisconsin, we have been investigating a digital system which uses an initial low-dose patient image to design an attenuator with transmission complimentary to that of the patient. The attenuator is fabricated for each patient and is positioned automatically in the x-ray beam prior to the acquisition of the final compensated image. The possible applications of this device include chest radiography, coronary angiography, subtraction angiography, and accurate digital videodensitometry.