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A mobile flat-panel CT imaging system for detecting brain soft tissue

A CT imaging and soft tissue technology, applied in the medical field, can solve the problems of reducing soft tissue contrast, poor image uniformity, and easy misdiagnosis, etc., and achieve stable rotation speed, light weight, and avoid aliasing artifacts

Pending Publication Date: 2019-01-15
天津金曦医疗设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of scattering causes the CT value to be underestimated, and its biggest disadvantage is that it reduces the contrast of soft tissues, and at the same time makes the uniformity of the image poor, which easily leads to misdiagnosis

Method used

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  • A mobile flat-panel CT imaging system for detecting brain soft tissue
  • A mobile flat-panel CT imaging system for detecting brain soft tissue
  • A mobile flat-panel CT imaging system for detecting brain soft tissue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for using a mobile flat-panel CT imaging system for brain soft tissue detection, comprising the following steps:

[0039] (1) The flat panel detector 2 is installed on the turntable 33 through the rotating bracket 32, and the redundant radiation shielding layer 26 is arranged behind the flat panel detector 2 to reduce the X-ray dose in the environment, so that Operators will not be exposed to radiation doses; the focal distance between the surface of the flat panel detector 2 and the X-ray source 1 is 600mm, and the installation accuracy is controlled at 0mm. Fine-tuning the X-axis direction and the Z-axis direction of the rotating bracket 32 ​​uses positioning Pin fixed installation position;

[0040] (2) The focal point of the X-ray source 1 is 500 mm from the center of rotation, and the installation accuracy is controlled at 0 mm. The X-ray source 1 is installed on the turntable 33 through the rotating bracket 32 ​​, and the X-ray source 1 passes The X-axis...

Embodiment 2

[0043] A method for using a mobile flat-panel CT imaging system for brain soft tissue detection, comprising the following steps:

[0044] (1) The flat panel detector 2 is installed on the turntable 33 through the rotating bracket 32, and the redundant radiation shielding layer 26 is arranged behind the flat panel detector 2 to reduce the X-ray dose in the environment, so that Operators will not be exposed to radiation doses; the focal distance between the surface of the flat panel detector 2 and the X-ray source 1 is 800mm, and the installation accuracy is controlled at 1mm. Fine-tuning the X-axis direction and the Z-axis direction of the rotating bracket 32 ​​uses positioning Pin fixed installation position;

[0045] (2) The focal point of the X-ray source 1 is 515mm from the center of rotation, and the installation accuracy is controlled at 1mm. The X-ray source 1 is installed on the turntable 33 through the rotating bracket 32, and the X-ray source 1 passes through the The...

Embodiment 3

[0048] A method for using a mobile flat-panel CT imaging system for brain soft tissue detection, comprising the following steps:

[0049] (1) The flat panel detector 2 is installed on the turntable 33 through the rotating bracket 32, and the redundant radiation shielding layer 26 is arranged behind the flat panel detector 2 to reduce the X-ray dose in the environment, so that Operators will not be exposed to radiation doses; the focal distance between the surface of the flat panel detector 2 and the X-ray source 1 is 1000mm, and the installation accuracy is controlled at 2mm. Fine-tuning the X-axis direction and the Z-axis direction of the rotating bracket 32 ​​uses positioning Pin fixed installation position;

[0050] (2) The focal point of the X-ray source 1 is 530mm from the center of rotation, and the installation accuracy is controlled at 2mm. The X-ray source 1 is installed on the turntable 33 through the rotating bracket 32, and the X-ray source 1 passes through the Th...

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Abstract

The invention discloses a mobile flat-panel CT imaging system for detecting brain soft tissue, which comprises an X-ray source, and a flat-panel detector, wherein the flat-panel detector is used for receiving X-ray signals and converting the X-ray signals into corresponding electric signals; a data acquisition module, connected with the detector, for converting the electric signal output by the detector into projection data and converting the temperature information of the detector into the temperature value of the detector; a control module, configured to control the temperature value of thedetector in the target temperature range and start the X-ray source operation; an image reconstruction module connected with the data acquisition module, and used for reconstructing the tomographic image according to the projection data. By optimizing the software and hardware structure of the imaging system, the moving flat CT imaging system of the invention effectively weakens the image artifactand guarantees the quality of the detected image, thereby effectively realizing the effective detection of the brain soft tissue.

Description

technical field [0001] The invention relates to the medical field, in particular to a mobile flat-panel CT imaging system for brain soft tissue detection. Background technique [0002] The mobile flat panel CT is an X-ray computed tomography device suitable for the patient's head and extremities. In large hospitals, due to the large number of patients and the acute stage of traumatic brain injury, CT plain scan is preferred to understand structural damage and intracranial hemorrhage, and the outline of blood in the brain can be clearly seen, including epidural, sub-dural and cerebral hemorrhage. substantial damage. Existing CT systems enable point-of-care imaging of TBI, but most existing systems are only suitable for bone imaging. The contrast of mobile flat-panel CT is very low when it is used for imaging of soft tissue, brain, blood, etc.; the collection of projection data cannot meet the sampling requirements, making the projection data essentially under-sampled, which...

Claims

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Application Information

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IPC IPC(8): A61B6/03
CPCA61B6/032A61B6/4411A61B6/501
Inventor 杨舰张励
Owner 天津金曦医疗设备有限公司
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