Abstract
Signal detection performance was evaluated on the basis of ROC analysis using both digital and conventional images of a humanoid chest phantom. Simulated focal (coin) lesions were the target pathology. Digital images were acquired using a 57-cm image intensifier, digitized to 1024×1024×10 bits, and compared, in both video and laser-printed film formats, with conventional 14×17-inch chest films. Signal detection using digital video and laser printed images, of the same image polarity as conventional images, was found not to differ significantly from that achieved using conventional images, despite the smaller size of the digital images.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Seeley GW, Newell JD II: The use of psychophysical principles in the design of a total digital radiology department. Radiol Clin North Am 23:341–348, 1985
Seeley GW, Ovitt T, Capp MP: The total digital department: An alternative view. AJR 144:421–422, 1985
Seeley GW, Fisher D, Stempski MO, et al: Total digital radiology department: Spatial resolution requirements. AJR 148421–426, 1986
Gray JE, Karsell PR, Becker GP, et al: Total digital radiology: Is it feasible? or desirable? AJR 143:1345–1349, 1984
Riederer SJ: Digital radiography. Crit Rev Biomed Eng 12:163–200, 1985
Chakraborty DP, Breatnach ES, Yester MV, et al: Digital and conventional chest imaging: A modified ROC study of observer performance using simulated nodules. Radiology 158:35–39, 1986
Fraser RG, Breatnach E, Barnes GT: Digital radiography of the chest: Clinical experience with a prototype unit. Radiology 148:1–5, 1983
Schwenker RP, Eger H: Film-screen digital radiography. Radiography 51:233–235, 1985
Kangarloo MI, Boechat R, Dietrich T, et al: Clinical experience with a PACS module in pediatric radiology: Clinical viewpoint. Proceedings of the Society for Photooptical Instrumentation Engineers 914:1036–1045, 1988
MacMahon H, Vyborny CJ, Metz CE, et al: Digital radiography of subtle pulmonary abnormalities: An ROC study of the effect of pixel size on observer performance. Radiology 158:21–26, 1986
Goodman LR, Foley WD, Wilson CR, et al: Digital and conventional chest images: Observer performance with film digital radiography system. Radiology 158:27–33, 1986
Kundel HL, Revesz G. Digital analysis of chest radiographs in pulmonary vascular congestion. Diagn Radiol 143:407–410, 1982
Lams PM, Cocklin ML: Spatial resolution requirements for digital chest radiographs: An ROC study of observer performance in selected cases. Radiology 158:11–19, 1986
Seeley GW, Pond GD, McNeill KM, et al: Comparison of film/screen to electronic review consoles: Phase II. Proceedings of the Society for Photo-optical Instrumentation Engineers 914:892–897, 1988
Kundel HL: Digital projection radiography of the chest. Radiology 158:274–276, 1986
Johnson GA, Ravin CE: Survey of digital chest radiography. Radiol Clin North Am 21:655–665, 1983
Kelsey CA, Moseley RD, Brogdon BG, et al: Effect of size and position on chest lesion detection. AJR 129:205–208, 1977
Gray JE, Taylor KW: Detection accuracy in chest radiography. AJR 131:247–253, 1978
Goodenough DJ, Rossmann K, Lusted LB: Radiographic applications of receiver operating characteristic (ROC) curves. Radiology 110:89–95, 1974
McNeil BJ, Keeler E, Adelstein SJ: Primer on certain elements of medical decision making. N Engl J Med 293:211–215, 1975
Moseley RD, Kelsey CA: Evaluating imaging methods. AJR 138:977–979, 1982
Hanley JA, McNeil BJ: The meaning and use of the area under a receiver operating characteristic (ROC) curve. Radiology 143:29–36, 1982
Hanley JA, McNeil BJ: A method of comparing the areas under receiver operating characteristic curves derived from the same cases. Radiology 148:839–843, 1983
McNeil BJ, Hanley JA: Statistics approaches to the analysis of receiver operating characteristic (ROC) curves. Med Decis Making 4:137–150, 1984
Westheimer G: Visual acuity and spatial modulation thresholds, in Autrum H (ed): Handbook of Sensory Physiology. New York, Springer Verlag, 1972, pp 109–187
Author information
Authors and Affiliations
Additional information
This research was supported by National Health Research Development Program (#6610-1437-X)
Rights and permissions
About this article
Cite this article
Brauer, G.W., Fisher, P.D., Hanley, J.A. et al. Signal detection in digital chest-phantom images acquired with an image intensifier. J Digit Imaging 2, 42–47 (1989). https://doi.org/10.1007/BF03168015
Issue Date:
DOI: https://doi.org/10.1007/BF03168015