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GB/T 43688-2024: The quality control method of magnetic resonance imaging or spectrometer
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The quality control method of magnetic resonance imaging or spectrometer
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GB/T 43688-2024
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Basic data | Standard ID | GB/T 43688-2024 (GB/T43688-2024) | | Description (Translated English) | The quality control method of magnetic resonance imaging or spectrometer | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L50 | | Classification of International Standard | 17.180.99 | | Word Count Estimation | 26,213 | | Date of Issue | 2024-03-15 | | Date of Implementation | 2024-10-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 43688-2024: The quality control method of magnetic resonance imaging or spectrometer---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 17.180.99
CCSL50
National Standards of People's Republic of China
Magnetic Resonance Imaging/Spectroscopy Quality Control Methods
Released on 2024-03-15
2024-10-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Principle 2
5 Measurement conditions 3
6 Measuring instruments 3
6.1 Standard phantom 3
6.2 Standard coil 3
7 Control Flow 3
7.1 Overview 3
7.2 Personnel Control Process 4
7.3 General Control Flow 4
8 Data Processing 7
8.1 Processing of numerical data 7
8.2 Image Data Processing 7
Appendix A (Informative) A standard phantom for quality control of magnetic resonance imaging equipment 8
Appendix B (Informative) Coil Uniformity Test Method 12
Appendix C (Informative) Model Values 13
Appendix D (Informative) Quality Control Testing Frequency 17
Appendix E (Informative) Selection method of measurement sequence for different functional areas of standard phantom 18
Appendix F (Informative) Image processing method for measurement results 19
Reference 21
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the Chinese Academy of Sciences.
This document is under the jurisdiction of the National Technical Committee for Standardization of Photoelectric Measurement (SAC/TC487).
This document was drafted by. China Institute of Metrology, Peking University Third Hospital, Shanghai United Imaging Medical Technology Co., Ltd., China
Academy of Sciences Aerospace Information Innovation Institute, Guangdong Zhongliang Testing Co., Ltd., Peking University, Beijing University of Aeronautics and Astronautics, Beijing Wandong Medical Science
Technology Co., Ltd., Chongqing University, China University of Metrology, Midea Group (Shanghai) Co., Ltd., Beijing Institute of Graphic Communication, Guangdong Provincial Architectural Design
Research Institute Co., Ltd., Guangzhou Institute of Metrology and Testing Technology, and Shandong First Medical University.
The main drafters of this document are. Liu Zilong, Han Hongbin, Li Yuxiao, Li Jin, Lian Yusheng, Xu Zheng, He Qingyuan, Liu Wenli, Cai Zhe, Lu Yonghong,
Wan Yunjie, Li Zhuoran, Wang Pu, Zhang Shuqin, Xing Xiaocong, Wang Zhibo, Wang Xuezheng, Fu Yu, Yuan Lan, Wang Huan, Wang Liwen, Wang Hong, Qiu Jianfeng.
Magnetic Resonance Imaging/Spectroscopy Quality Control Methods
1 Scope
This document establishes the principles of quality control (hereinafter referred to as "QC") methods for imagers and spectrometers based on the magnetic resonance principle and describes
The measurement conditions, measurement equipment, control process, data processing and other contents of magnetic resonance imaging/spectroscopy quality control methods are discussed.
This document applies to the quality control, design, production, and batch verification of magnetic resonance imaging/spectroscopy in the fields of medicine and life sciences.
It is used as a reference for quality control in inspection and other links.
2 Normative references
This document has no normative references.
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Using the characteristics of atomic nucleus spin motion, in an external magnetic field, after being excited by radio frequency pulses, a signal is generated, which is detected by a detector and then processed.
A measuring instrument that displays images after mathematical conversion.
3.2
Nuclear Magnetic Resonance Spectrometer
An instrument for measuring material spectra using nuclear magnetic resonance (NMR) technology.
Note 1.In a strong magnetic field, the energy level of the atomic nucleus splits. When absorbing external electromagnetic radiation, the nuclear energy level transition will occur. Capturing this signal can obtain the corresponding
The spectrum of the child.
Note 2.This document relates to imaging nuclear magnetic resonance spectrometers associated with nuclear magnetic resonance imagers, which use their high-precision relaxation time measurements to achieve
Calibration of magnetic resonance imaging equipment.
3.3
protondensity
The amount of protons of a certain element per unit volume.
Note. When other parameters remain unchanged, the magnetic resonance signal intensity is proportional to the proton density.
3.4
The synthetic magnetization vector generated by the spin of the atomic nucleus in the magnetic field is stimulated by the radio frequency signal to form Larmor precession.
The time it takes for the component of the synthetic magnetization vector about its spin axis (Z axis) to change to its initial state (before applying the RF signal) after the signal is removed.
Note. The component of the synthetic magnetization vector on its spin axis (Z axis) is restored to 1-
e to determine the longitudinal relaxation time value.
3.5
The synthetic magnetization vector generated by the spin of the atomic nucleus in the magnetic field is stimulated by the radio frequency signal to form Larmor precession.
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