Tomosynthesis using high speed CT scanning system

Details Tomosynthesis using high speed CT scanning system Tomosynthesis using high speed CT scanning system

1986-08-05

1988-04-05

Howell, Janice A.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 10, 378 20, 378901, G01N 2303

Patent

active

047363967

ABSTRACT:
A tomogram is obtained by tomosynthesis in a high speed CT scanning system in which fan beams of radiation are generated by sweeping an electron beam along a target, and collimated X-rays emitted by the target are received by an array of detectors after passing through a patient area between the target and array of detectors. The patient is moved through the collimated x-rays as the measurments are obtained, and the measurements are time-correlated to correspond to data measurements for a plurality of projection radiographs. The measurements for the plurality of radiographs are combined to tomosynthesize a tomogram at a selected plane in the patient.

REFERENCES:
patent: 4086492 (1978-04-01), Lodge
patent: 4216526 (1980-08-01), Karwowski
patent: 4352021 (1982-09-01), Boyd
patent: 4411012 (1983-10-01), Pfeiler
patent: 4439866 (1984-03-01), Kato
patent: 4485480 (1984-11-01), Kohno
patent: 4504962 (1985-03-01), Moore
patent: 4573179 (1986-02-01), Rutt
Nishimura et al., "Digital Tomosynthesis Using a Scanned Projection Radiographic System", SPIE, vol. 314, Digital Radiography, (1981), pp. 31-36.

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