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YY/T 1546-2017 (YY/T1546-2017)

Chinese standards (related to): 'YY/T 1546-2017'
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YY/T 1546-2017English139 Add to Cart 3 days Testing method for SPECT imaging based on CT-attenuation correction YY/T 1546-2017 Valid YYT 1546-2017

Standard ID YY/T 1546-2017 (YY/T1546-2017)
Description (Translated English) Testing method for SPECT imaging based on CT-attenuation correction
Sector / Industry Medical Device & Pharmaceutical Industry Standard (Recommended)
Classification of Chinese Standard C43
Classification of International Standard 11.040.50
Word Count Estimation 7,797
Date of Issue 2017-05-02
Date of Implementation 2018-04-01
Drafting Organization Beijing Medical Device Inspection Institute, Air China General Electric Medical System Co., Ltd., Siemens (China) Co., Ltd., Philips (China) Investment Co., Ltd.
Administrative Organization National Technical Committee for Medical Appliance Standardization Technical Committee on Radiation Therapy, Nuclear Medicine and Radiological Equipment (SAC/TC 10/SC 3)
Regulation (derived from) China Food & Drug Administration Announcement 2017 No. 49
Proposing organization China Food and Drug Administration
Issuing agency(ies) State Food and Drug Administration

YY/T 1546-2017: PDF in English (YYT 1546-2017)
YY/T 1546-2017
Testing method for SPECT imaging based on CT-attenuation correction
ICS 11.040.50
People's Republic of China pharmaceutical industry standards
For SPECT imaging CT attenuation correction
experiment method
2017-05-02 released
2018-04-01 implementation
State Food and Drug Administration released
Foreword Ⅲ
1 range 1
2 Normative references 1
3 Terms and definitions 1
4 test methods 1
4.1 Overview 1
4.2 Purpose 1
4.3 Method 1
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of this document may be patentable. The issuing agencies of this document do not bear the responsibility of identifying these patents.
This standard proposed by the State Food and Drug Administration.
This standard by the National Standardization Technical Committee of Medical Electrical Radiation therapy, nuclear medicine and radiation dosimetry equipment sub-technical committee
This standard was drafted. Beijing Medical Device Inspection Institute, Air Wei GE Medical Systems Co., Ltd., Siemens (China) Co., Ltd.
Division, Philips (China) Investment Co., Ltd.
The main drafters of this standard. Feng Jian, Meng Fanbo, Wang Feng, Zhao Xuan, Hou Yao Fang, Wang Jianli.
For SPECT imaging CT attenuation correction
experiment method
1 Scope
This standard specifies the test method for CT attenuation correction SPECT imaging.
This standard applies to SPECT/CT one machine.
This standard does not apply to stand-alone SPECT system.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 18988.3 radionuclide imaging equipment performance and test rules Part 3. Gamma camera body imaging system
GB/T 18989 Radionuclide imaging equipment performance and test rules gamma camera
3 Terms and definitions
GB/T 18988.3, GB/T 18989 and defined by the following terms and definitions apply to this document.
Attenuation correction attenuationcorrection; AC
Correction of loss of radiant intensity after passing through the media.
4 test methods
4.1 Overview
For single-photon emission tomography devices, the attenuation correction of any medium within the device's fault volume for attenuation correction should have the correct theory
basis. The basis of the calibration is measuring the transmittance of the object through the object in the total field of view. The accuracy actually achieved is an important part of its quantitative ability
4.2 Purpose
In the method, SPECT and CT scanning are performed on the motif of known components, and the linear attenuation coefficient obtained by using CT image conversion
Value, the SPECT image attenuation correction to assess the accuracy of SPECT attenuation correction.
Note. The results of this test are also affected by uniformity, scattering, etc.
4.3 method
4.3.1 Overview
The transmission of X-ray radiation through the non-uniform attenuating medium is processed to give the attenuation correction model, which is used as the SPECT projection number
It is part of the reconstruction process. The accuracy of attenuation correction is reflected in the reconciliation between the transmitted value and the true value.