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Method and device for optimizing scanning flow

A process and computer program technology, applied in computer tomography scanners, echo tomography, etc., can solve problems such as errors, and achieve the effect of reducing the amount of data, reducing radiation dose, and reducing X-ray radiation dose

Active Publication Date: 2012-12-05
SIEMENS SHANGHAI MEDICAL EQUIP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are human errors in this method

Method used

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  • Method and device for optimizing scanning flow
  • Method and device for optimizing scanning flow
  • Method and device for optimizing scanning flow

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Embodiment Construction

[0046] In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples are given to further describe the present invention in detail.

[0047] Taking CT equipment as an example, the method and device for optimizing the scanning process of the present invention will be described in detail below.

[0048] For the current double-row CT, usually the time for the data acquisition system to rotate synchronously around the object to be inspected is less than 1s, such as 0.6s, and the frequency of human body movement is usually 1 second, so during the scanning process, not every time The motion data of the object to be inspected is included in the original projection data set obtained from each scan. In addition, during each scanning process, the data acquisition system collects X-ray projection data according to a certain angular interval, that is, reading. For example, each scan needs to read 2000 times. is moving, so not eve...

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Abstract

The invention relates to the field of medical equipment, in particular to a method for optimizing a scanning flow. The method comprises the following steps of: judging a position where an object to be inspected moves according to an original projection data group; and scanning the position once again. The invention further provides a device for optimizing a scanning flow. According to the method and the device, a specific position where the object to be inspected moves during scanning can be judged automatically, and only the specific position is scanned once again, so that higher accuracy is achieved, and the dose of X-ray radiation received by the object to be inspected is reduced.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a method and device for optimizing a scanning process. Background technique [0002] With the progress of medical level, X-ray computed tomography (Computed Tomography, CT) equipment has been widely used. When performing CT scanning on the object to be inspected, the rotating gantry rotates 360 degrees around the Z axis, and at the same time drives the data acquisition system including the X-ray source and detector to rotate 360° around the object to be inspected synchronously, from [0, 360°] X-ray projection data can be obtained from the projection angle, where the Z-axis is the horizontal direction of the CT examination bed entering and exiting the rotating gantry. At each projection angle, M channels of the detector simultaneously receive X-ray projection data and transmit it to the CT image reconstruction system for generating a reconstructed image. However, since the human...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03
Inventor 杜春华王薇
Owner SIEMENS SHANGHAI MEDICAL EQUIP LTD
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