Method and apparatus for constructing models of body sections

Details Method and apparatus for constructing models of body sections Method and apparatus for constructing models of body sections

1975-05-09

1977-10-11

Church, Craig E.

Radiant energy

Inspection of solids or liquids by charged particles

Analyte supports

250490, G03B 4116

Patent

active

040537790

ABSTRACT:
Two scanning systems are described to X-ray sections of a body and obtain a plurality of radiographic projections suitable for reconstruction as models of the body. The transmitted X-rays are recorded in any convenient form to produce data proportional to their intensities, and the data are converted to logarithmic form, stored and processed by a computer according to a predetermined set of original algorithms. The computer calculates a two-dimensional matrix from any set of linear arrays of data which represent the projection values of a body section. Such a matrix represents an estimate or approximation of the two dimensional distribution of the absorption or transmission coefficients of the X-rayed body section. The computer outputs are used to display pictures of the X-rayed body sections in any convenient visual or numerical form.

REFERENCES:
patent: 3432657 (1969-03-01), Slaven
patent: 3549885 (1970-12-01), Andersson
patent: 3778614 (1973-12-01), Hounsfield
patent: 3845308 (1974-10-01), Cattrell

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