G - Physics – 01 – T
Patent
G - Physics
01
T
358/11.1
G01T 1/00 (2006.01) A61B 6/03 (2006.01) G01N 23/08 (2006.01)
Patent
CA 1138132
7.8.79 1 PHB.9385 "ABSTRACT": "Method of and device for determing a radiation absorption distribution in a part of a body". The invention relates to a method of and a device for determining a radiation absorption distribution in a part of a body. Per measuring value a contribution of the absorption value in each element of a matrix imagined in the part is calculated. It is demonstrated that this contribution equals the value of the measuring value multiplied by a weighting factor. The weighting factor is a function of the distance between the element and the measuring path along which the measuring value is determined. A calculation method of this kind enables fast on-line calculation of an absorption distribution and the complete reconstruction of the absorption dis- tribution is laid down in a hardware circuit. Complex operations such as F.F.T., convolution and interpolation are not required.
347585
Fetherstonhaugh & Co.
N.v. Philips Gloeilampenfabrieken
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