CAJ | 학술논문

目的探讨单光子发射计算机体层摄影术/计算机断层扫描(SPECT/CT)系统的质量控制与质量保证.方法定期检测仪器能峰、能量分辨率和探头固有均匀性,并进行质量控制.结果常规的日常硬件保养减少了仪器故障发生率,仪器能峰、能量分辨率保持稳定,探头固有均匀性需要定期校正,校正前后1号探头均匀性(%)分别为(2.71±0.28)、(2.37±0.11)(t=2.489,P<0.05),2号探头均匀性(%)分别为(2.68±0.12)、(2.38±0.19)(t=6.421,P<0.01).结论定期对仪器的质量控制与保养可保证仪器性能稳定,提高设备使用效率.
목적 탐토단광자발사계산궤체층섭영술/계산궤단층소묘(SPECT/CT)계통적질량공제여질량보증.방법 정기검측의기능봉、능량분변솔화탐두고유균균성,병진행질량공제.결과 상규적일상경건보양감소료의기고장발생솔,의기능봉、능량분변솔보지은정,탐두고유균균성수요정기교정,교정전후1호탐두균균성(%)분별위(2.71±0.28)、(2.37±0.11)(t=2.489,P<0.05),2호탐두균균성(%)분별위(2.68±0.12)、(2.38±0.19)(t=6.421,P<0.01).결론 정기대의기적질량공제여보양가보증의기성능은정,제고설비사용효솔.
Objective To investigate the quality control and quality assurance of the SPECT/CT system.Methods The energy peak,energy resolution capacity and the intrinsic uniformity of the device's detector were regularly examined, and the quality control was performed. Results The daily hardware maintain could reduce the rate of system's trouble. The device's energy peak,energy resolution capacity were consistent during half year's observation period. The two detector's intrinsic uniformity were better after calibration than before. [ detector Ⅰ: ( 2.71 ± 0.28 ) vs (2.37±0.11)(t=2.489,P<0. 05);detector Ⅱ:(2.68 ±0.12)vs(2.38 ±0. 19)(t =6.421,P <0.01) ] .Conclusion Regular quality control and maintain could keep the function stabilization,enhance the availability rate of the SPECT/CT system.