Method for detecting CT key technical indicators by means of multifunctional standard body model

A key technology and a standard technology, applied in computer tomography scanners, echo tomography, etc., to achieve the effect of reliable data support

Inactive Publication Date: 2013-10-09
成都军区昆明总医院
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Problems solved by technology

At the same time, after analyzing and summarizing the data, the existing CT quality control and inspection specifications are feasible to be corrected.

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  • Method for detecting CT key technical indicators by means of multifunctional standard body model
  • Method for detecting CT key technical indicators by means of multifunctional standard body model
  • Method for detecting CT key technical indicators by means of multifunctional standard body model

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[0070] Detection Tool ：

[0071] 1. Multifunctional X-ray analyzer: Barracuda X-ray analyzer is used. Its main working principle is to use X-rays to irradiate the ionization chamber in the multi-function probe (MPD) to ionize the material in it, then measure the ionization current and calculate it to obtain the corresponding detection data [3] . The main components included in the Barracuda are: a mainframe of one or more components, a multifunction probe (MPD) for measuring tube voltage, exposure time, dose and dose rate, a QABrowser PDA and / or a computer with oRTIgo2002 software, Other measurement probes, Barracuda can measure parameters such as kV, exposure time, dose, dose rate, dose / pulse, mA, mAs, waveform, etc. Barracuda can simultaneously measure and display the above detection indicators in one exposure.

[0072] 2. CT standard dose phantom: a plexiglass cylinder with a diameter of 16cm, whose X-ray absorption coefficient is close to that of the human body. Drill...

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Abstract

The invention discloses a method for detecting CT key technical indicators by means of a multifunctional standard body model. In order to meet CT quality control detection standard requirements, the corresponding standard body model is selected, and specific detection steps and standards are prepared. The method comprises the steps that a Barracuda X-ray analyzer is adopted, a CT standard dose body model and a Catphan500 performance body model of the American model body laboratory conduct quality control detection on CT key parameters, collect data, analyze CT performance status and provide guarantees for ensuring accuracy of CT image diagnosis of the clinical department, and meanwhile feasibility correction is carried out on existing CT quality control detection standards after the data are analyzed and summarized. A set of brand-new CT imaging quality control detection method is established, and detection of existing CT quality control is completed. The method is popularized to hospitals and other health units, and reliable data support is provided for CT image performance guarantees.

Description

technical field [0001] The invention relates to a method for detecting key technical indicators of CT by using a multifunctional standard phantom. Background technique [0002] 1. International aspects: In 1977, AAPM published the No. 1 report: "Phantom for CT machine performance evaluation and CT machine quality assurance"; in 1993, AAPM published the No. 39 report "Computed tomography equipment acceptance test In 1982, WHO announced "Quality Assurance in Diagnostic Radiology"; in 1989, the German national standard "Assurance of Image Quality in Radiological Diagnostic Work X-ray Computed Tomography Device Stability Test" (DIN6868-6) officially entered into force. In 1990, the German national standard "Guarantee of Image Quality in Radiological Diagnosis Work X-ray Computed Tomography Device Acceptance and Inspection" (DIN6868-53) came into effect; in 1989, Japan formulated the "Standard for Performance Evaluation of X-ray CT Devices ( In 1994, the International Electrot...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/03
Inventor 朱弋王振洲杨舒波姜树勋
Owner 成都军区昆明总医院
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