| Liu Hui,Tan Zhan,Yao Jie,et al.Test and discussion on SPECT performance under the Chinese health industry standard WS523-2019[J].Chinese Journal of Radiological Medicine and Protection,2021,41(7):534-538 |
| Test and discussion on SPECT performance under the Chinese health industry standard WS523-2019 |
| Received:January 15, 2020 |
| DOI：10.3760/cma.j.issn.0254-5098.2021.07.011 |
| KeyWords:Single photon emission computed tomography Intrinsic uniformity Intrinsic spatial linearity |
| FundProject:国家自然基金（81773364）；四川省自然基金重点项目（2017SZ0004）；全军后勤科研重大项目（AWS17J007） |
| Author Name | Affiliation | | Liu Hui | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, Notional Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | Tan Zhan | Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou 510300, China | | Yao Jie | Shanghai Municipal Center for Disease Control & Prevention, 200336, China | | Zhai Hezheng | Institute of Radiation Medicine, Chinese Academy of Medical Sciences, Tianjin 300192, China | | Chen Zhangfan | Institute for Radiation Hygiene Protection, Guangxi Center for Disease Prevention and Control, Nanning 530028, China | | Zhang Ling | Anhui Prevention and Treatment Center for Occupational Disease, Hefei 230041, China | | Wang Feng | Department of Nuclear Medicine, Beijing Cancer Hospital, 100036, China | | Li Honglei | Department of Nuclear Medicine, China-Japan Friendship Hospital, 100029, China | | He Hongtao | Philips (China) Investment Co., Ltd, Beijing 100600, China | | Li Wangyuan | GE Medical System, Shanghai Ltd., 201203, China | | Zhang Shuai | Siemens Healthineers Digital Technology (Shanghai) Co., Ltd., 200126, China | | Geng Jianhua | Department of Nuclear Medicine, Cancer Hospital, Chinese Academy of Medical Sciences, 100021, China |
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| Abstract:: |
| Objective To discuss the problems existing in the implementation of the Chinese health industry standard WS 523-2019 by testing SPECT device. Methods Under the WS 523-2019 standards, a total of 10 SPECT devices were tested with regard to their SPECT reconstructed spatial resolution (SRSR), system planar sensitivity (SPS), system spatial resolution (SSR), whole body system spatial resolution (WSSR), intrinsic uniformity (IU), intrinsic count rate performance (ICR), intrinsic spatial resolution (ISR) and intrinsic spatial linearity(ISL).Result Under the requirements of WS 523-2019 standards for qualified limits, there are 3 devices with ISL unqualified and the rest of the performances qualified. The new standards basically can meet the clinical requirements and reflected the overall performance of SPECT. Conclusions The distance between the radiation source and the surface of the detector has great influence on the spatial resolution.In the measurement of ISL, there must be a lead grid separately in the x and y directions. The lead grids with the parallel slits shall be positioned on the detector with the center slit centered on the detector. It is suggested to add rotation center in the new standards. |
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