Quasi-phase super-resolution method for chest-and-belly surface breathing movement signals

A respiratory motion and quasi-phase technology, which is applied in radiation therapy, X-ray/γ-ray/particle irradiation therapy, treatment, etc., can solve the problem of no respiratory motion signal, shorten the signal analysis time, and improve the super-resolution accuracy Effect
CN111135482AInactive Publication Date: 2020-05-12HARBIN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN UNIV OF SCI & TECH
Publication Date
2020-05-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a super-resolution method for chest-and-belly surface breathing movement signals and belongs to the technical fields of precise instruments and chest-and-belly radiotherapy. According to the method, firstly, breathing movement signals are converted into periodic signals through a signal conversion module, then, equal-phase-difference III output with the phase difference ofPI / 2 is formed through a phase difference multi-output module, then, equal-phase-difference V output with the phase difference of PI / 5 is formed through a resistance chain multi-phase generation module, then, square waves are formed through a multi-phase sine square wave conversion module, and quasi-phase super-resolution square wave output is formed through a multi-phase merged logic gate module, so that the breathing movement signals of one period can be changed into quasi-phase square wave signals of multiple periods, and phasic difference is a zeroth period of the quasi-phase super-resolution square wave output signals.
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Description

technical field

[0001] The invention discloses a quasi-phase super-resolution method for respiratory motion signals on the surface of the chest and abdomen, belonging to the technical fields of precision instruments and radiation therapy of the chest and abdomen. Background technique

[0002] During radiotherapy for thoracic and abdominal tumors, breathing makes the tumor area escape the target area or normal tissue enter the target area, which not only reduces the effect of radiotherapy, but also easily causes complications.

[0003] In order to solve the negative impact of respiratory exercise on radiation therapy, the methods of respiratory maintenance and respiratory gating were first adopted clinically, and the control of tumor location was achieved through the intervention of breathing. Although some effects have been achieved, the patient's tolerance is poor. ; In order to improve the patient's tolerance and not interfere with the patient's breathing, a tracking syste...

Claims

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