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Scanning method and scanning device

A scanning method and a scanning device technology, applied in the fields of scanning methods and scanning devices, can solve the problems of reduced real-time dose modulation, unoptimized modulation effect, and reduced processor scheduling efficiency.

Active Publication Date: 2020-07-10
NEUSOFT MEDICAL SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Usually, the collected scan data is sent to the processor for calculation. Since a lot of collected data is used, and complex calculations such as logarithmic operations are involved, a logarithmic operation requires tens of microseconds, so a dose calculation may occupy the processor for at least several hours. Ten milliseconds, the real-time performance of dose modulation is reduced, the modulation effect cannot be optimal, and the processor's scheduling efficiency for other real-time tasks will also be reduced

Method used

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  • Scanning method and scanning device
  • Scanning method and scanning device
  • Scanning method and scanning device

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Embodiment Construction

[0009] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0010] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the common meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and sim...

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Abstract

The application provides a scanning method which comprises the following steps of: emitting X-rays to a subject; detecting the X-rays which penetrate through the subject and generating scanning data; performing proximate calculation on logarithm value of at least part of the scanning data by use of a table look-up method through a pretreatment unit so as to obtain a plurality of attenuation region data; modulating radiation dose according to the attenuation region data by virtue of a processor; and emitting X-rays according to the modulated radiation dose. The application further discloses a scanning device which can execute the scanning method.

Description

technical field [0001] The present application relates to a scanning method and a scanning device, in particular to a computer tomography (Computed Tomography, CT) method and device. Background technique [0002] On-line dose modulation of CT machines usually requires real-time acquisition of scan data to participate in the calculation, and the estimated dose is corrected based on the information of real-time scan data. Usually, the collected scan data is sent to the processor for calculation. Since a lot of collected data is used, and complex calculations such as logarithmic operations are involved, a logarithmic operation requires tens of microseconds, so a dose calculation may occupy at least several processors. Ten milliseconds will reduce the real-time performance of dose modulation, and the modulation effect will not be optimal. At the same time, the scheduling efficiency of the processor for other real-time tasks will also be reduced. Contents of the invention [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/00A61B6/03
CPCA61B6/032A61B6/40A61B6/4078A61B6/4085A61B6/44
Inventor 蒋哲文
Owner NEUSOFT MEDICAL SYST CO LTD