Modulatable CT detector data compression and acquisition mode

A data compression and detector technology, applied in image data processing, radiological diagnostic equipment, radiological diagnostic image/data processing, etc., can solve the problems of reducing data bandwidth, fixed area division, large data bandwidth occupation, etc., to achieve Reduced requirements and the effect of reducing the bandwidth occupation of the slip ring
CN110335671AActive Publication Date: 2019-10-15四川明峰医疗科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
四川明峰医疗科技有限公司
Publication Date
2019-10-15

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Abstract

The invention provides a modulatable CT detector data compression and acquisition mode, and relates to the technical field of medical images. The mode comprises the steps: carrying out the scanning ofa patient positioning film; performing dynamic dividing of a plurality of scanning areas according to the rotation of a rack, wherein the plurality of scanning areas comprise a first area, a second area and a third area, an area range formed by intersecting the tangent lines of the focus and the heart scanning area in a detector is the second area, an area range formed by intersecting the tangentlines of the focus and the heart scanning area in the detector and intersecting the tangent lines of the focus and the scanning view boundary in the detector is the first area and the third area, andthe sizes of the three areas are dynamically changed along with the rotation of the rack; and dynamically compressing the data of the first and third areas, wherein the compression process is completed on a data acquisition board of a rotor part of a CT machine. The data compression and acquisition mode can reduce the data bandwidth, control the data volume and reduce the requirement of the slipring data transmission bandwidth.
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Description

technical field

[0001] The invention relates to the technical field of medical equipment, in particular to a modulating CT detector data compression acquisition method. Background technique

[0002] The main components of the third-generation CT system include Tube (ball tube), Collimator (beam limiter), and Detector (detector). The X-ray tube emits X-rays, which are limited by a beam limiter to form a cone-shaped beam. The cone-shaped light beam is irradiated on the detector and converted into an electrical signal by the detector, and then converted into digital information by the data acquisition and conversion unit and stored in the image processing system. The image processing system generates images and displays them on the monitor through a series of correction algorithms and image reconstruction algorithms. In terms of cost and technology maturity, mainstream detectors use many detector modules arranged on an arc or polygonal surface to form the entire detector. A ...

Claims

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