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Method for quickly and accurately calibrating medical imaging component after changing of position thereof

An imaging component and medical imaging technology, applied in the field of medical imaging, can solve the problems of unoptimized imaging effect, time consumption and dose, long time consumption and high requirements

Inactive Publication Date: 2011-10-05
WEIDU MEDICAL SYST
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AI Technical Summary

Problems solved by technology

If there is a position change relative to the reference position, the resulting image has application value only after the changed position coordinates are accurately known, and the changed position coordinates can only be determined by means of the reference position. Sure, there are also disadvantages of complicated process, high requirements, and long time-consuming
in addition, accurate calibration of reference locations often requires the use of some type of ionizing radiation, which is harmful to human health
[0005] Therefore, the limitation of geometric position naturally limits the clinical effect of the system. For example, the optimal imaging distance and angle cannot be selected, so the imaging effect, time and dose cannot be optimized.

Method used

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  • Method for quickly and accurately calibrating medical imaging component after changing of position thereof
  • Method for quickly and accurately calibrating medical imaging component after changing of position thereof

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Embodiment Construction

[0021] The method for fast and accurate calibration of the medical imaging component after the position of the present invention is changed, the steps are as follows:

[0022] (1) First place the imaging component whose position needs to be determined at a reasonable position suitable for its application. This position is called the reference position, and then the first measurement system accurately calibrates the reference position to obtain an accurate determination of the reference position. Standard value; at the same time, the second measurement system performs secondary calibration on the reference position of the imaging component to obtain the reference calibration value of the reference position;

[0023] (2) When the position of the imaging component changes due to the needs of its specific application, the changed position is called the current position, and the current position of the imaging component is measured by the second measurement system to obtain the refe...

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Abstract

The invention discloses a method for quickly and accurately calibrating a medical imaging component after changing of the position thereof, comprising the following steps of: firstly, arranging the imaging component in a reference position, accurately calibrating the reference position by a first measuring system to obtain an accurate calibrating value of the reference position; simultaneously, calibrating the reference position of the imaging component for the second time by a second measuring system to obtain a reference calibrating value of the reference position; measuring the current position of the imaging component by the second measuring system to obtain the reference calibrating value of the current position; and according to the accurate calibrating value of the reference position, the reference calibrating value of the reference position and the reference calibrating value of the current position, calculating to obtain the accurate calibrating value of the current position. The method is convenient and quick in calibration, enables the medical imaging system to have a larger activity space and be more flexible in use, and is more favorable for improving the clinical effect of the imaging system.

Description

technical field [0001] The invention relates to a method for rapidly and accurately marking the changed spatial position of an object after the spatial position of the object is changed, and specifically refers to a method for quickly and accurately marking the changed position of a medical imaging component, which belongs to the technical field of medical imaging. Background technique [0002] Medical imaging systems have been widely used in medical diagnosis and treatment, such as image-guided systems for diagnosis, surgery, interventional therapy, radiation therapy and surgery. [0003] When the above-mentioned medical imaging system collects images of patients, it often needs to know the geometric position of the imaging system in the reference coordinate system precisely. For example, in an image-guided system for radiation therapy, the system needs to determine the patient's current position (relative to the reference position) by comparing real-time acquired patient...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B19/00A61B6/00A61N5/00
CPCA61B6/547H05G1/26A61B6/582
Inventor 母治平
Owner WEIDU MEDICAL SYST
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