Detector signal integration in volumetric CT scanner detector ar

Details Detector signal integration in volumetric CT scanner detector ar Detector signal integration in volumetric CT scanner detector ar

1994-07-29

2000-04-04

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378115, 378116, A61B 600

Patent

active

060470402

ABSTRACT:
A multi-slice or volumetric CT system has a 2D array of detector elements arranged in columns along the slice direction and rows along the in-slice direction. Channels in a digital acquisition system connect to the respective columns and a switch assembly is operated during a scan to sequentially enable detector elements in each column either one or two at a time. By enabling two elements at a time, the SNR of the acquired data is increased and the expected resolution loss in the slice direction is compensated for by detector wobbling.

REFERENCES:
patent: 4160167 (1979-07-01), Weiss et al.
patent: 4442489 (1984-04-01), Wagner
patent: 4965726 (1990-10-01), Heuscher et al.
patent: 5430784 (1995-07-01), Ribner et al.

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