Abstract
The formation of radiographic images results from the interaction of X-ray beams with the tissue of a patient. The image which results is a representation of the distribution of interaction within the body. The degree of interaction can be determined by measuring and recording either the number of photons which are transmitted through a body or alternatively the distribution of scattered photons (1). In this paper only those methods which rely on transmission measurements will be considered. It will be shown that all high efficiency methods produce data with a very wide dynamic range which is difficult to transmit into the eye and brain of an observer. Computer tomography represents one solution to the problem and can be regarded as a method for compressing the dynamic range of relevant data. Other solutions are probably possible and the construction of versatile high efficiency X-ray systems which give most of the advantages of current C.T. systems should be possible. The basic arguments which lead to this conclusion will now be developed.
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References
Battista J.J. and Bronskill. “Compton-scatter Tissue Densitometry:Calculation of Single and Multiple Scatter Photon Fluences.” Phys. Med. Biol. 23 (1978) 1-23.
Hounsfield G.N. “Computerised transverse axial scanning (tomography). Part 1. Description of system.” Br.J.Radiol. 46 (1972) 1016-1022.
Newton T.H. and D.G.Potts. “Radiology of the skull and brain:Technical aspects of computed tomography.” Mosby (1981).
Macovski, A. “Iodine imaging using spectral analysis”, in Noninvasive Cardiovascular Measurements (eds. H.A.Miller, E.V. Schmidt and D.C. Harrison), Society of Photo-Optical Instrumental Engineers, Bellingham, Washington. (1978) 67-75.
Ovitt, T.W., Capp, M.P., Fisher, H.D., Frost, M.M.,Lebel, J.L., Nudelman, S., and Roehrig, H. “The development of a digital video subtraction system for intravenous angiography”, in Noninvasive Cardiovascular Measurements (ed. H.A. Miller, E.V. Schmidt and D.C Harrison), Society of Photo-Optical Instrumentation Engineers, Bellingham, Washington. (1978) 61-65.
Kruger, R.A., Mistretta, C.A., Houk, T.L., Reiderer, S.J., Shaw, C.G., Goodsitt, M.M., Crummy, A.B., Zweibel, W., Lancaster, J.C., Rowe, G.G., and Flemming, D. “Computerized fluoroscopy in real time for noninvasive visualisation of the cardiovascular system,” Radiology, 130, (1979) 49-57.
Brody, W.R. Sommer F.G. et al, “Dual-Kvp radiography.” Proceedings of S.P.I.E. Vol 273. (1981) 239-243.
Tompsett, M.F. “Video-signal generation,” in Electronic Imaging (ed. T.P. McLean and P. Schagen), Academic Press London, (1979) 55-101.
Walker, G.A.H. Buchholz V. et al. “Applications astronomique des recepteurs d’images a response lineare”. (ed. Duchesne and Lelieure, Obs de Paris-Meudon) (1976) 24
Brooks R.A. Di Chiro G.“Principles of computer assisted tomography (CAT) in radiographic and radioisotope imaging.” Phys. Med. Biol. 21, (1976) 689.
Pullan B.R. “Basic principles of computed tomography; Theory.” Proceedings of Enrico Fermi summer school on Medical Physics Verrena (1979).
Macovski A. Herman G.T. “Principles of reconstruction algorithms.” Radiology of the skull and brain. Technical aspects of computed tomography, ed. Newton T.H. and Potts D.G. (The C.V. Mosby Company) (1981).
Dovas T. Dept. Medical Biophysics, University of Manchester. Personal Communication.
Myers M.J. “Computer processing in longditudinal isotope tomography.” Information processing in scintigraphy ed. A. Todd-Pokropek (1975) 343-352.
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© 1983 Martinus Nijhoff Publishers, The Hague
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Pullan, B. (1983). Computerized Transmission Tomography: CT and Digital Volume Scanning. In: Reba, R.C., Goodenough, D.J., Davidson, H.F. (eds) Diagnostic Imaging in Medicine. NATO ASI Series, vol 61. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6810-3_10
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DOI: https://doi.org/10.1007/978-94-009-6810-3_10
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