Reconstruction method of X-ray computed tomography

Details Reconstruction method of X-ray computed tomography Reconstruction method of X-ray computed tomography

1981-01-23

1983-10-25

Krass, Errol A.

Boots, shoes, and leggings

378901, G06F 1542, G01T 120

Patent

active

044122896

ABSTRACT:
Measured values are produced from one of a plurality of projectional distributions of X-ray being constituting the major data, other measured values are produced from the remaining projectional distributions of X-ray constituting sub-data, X-ray absorption coefficient for picture elements constituting a tomographic plane is calculated to construct a tomogram of the X-ray tested tissue of body, resulting in that a substantial decrease of the measuring time will decrease exposure time to X-ray and/or enable a clear reconstruction of a moving X-ray tested tissue of a body as well as improve substantially and the accuracy of reconstruction.

REFERENCES:
patent: 4052619 (1977-10-01), Housfield
patent: 4099060 (1978-07-01), Franke
patent: 4222104 (1980-09-01), Moore
patent: 4233662 (1980-11-01), Lemay
patent: 4266136 (1981-05-01), Duinker
patent: 4309614 (1982-01-01), Wagner
patent: 4313163 (1982-01-01), Mizutani
IBM Tech. Discl. Bull.-"Analog Reconstruction from X-Ray Projections"; Chang et al., vol. 15, No. 12; May 1973; pp. 3712-3714.
Computerized Tomography, The International Journal of Radiological Diagnosis Using CT Scanners, vol. 2, No. 3, 1978, Pergamon Press.

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