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

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...

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.

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