MSCT设备质量控制检测研究
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摘要
目的本研究通过对新装的一台Philips Brilliance iCT Elite的质量控制检测,探讨日常工作中多层螺旋CT质量控制检测方法及注意事项。方法使用DCT10长杆电离室及16 cm剂量头模检测CT加权剂量指数及射线的重复性,用美国模体实验室Catphan 500/600模体检测CT性能参数。结果 CT加权剂量指数、层厚、CT值、定位光精度、噪声、空间分辨率、密度分辨率和均匀性等性能参数满足验收要求。结论通过CT质量控制检测及日常质量控制质量管理可及时掌握设备的状态、性能偏移并做出整改,减少了故障停机时间,保障检查图像质量。
Objective To test the quality control of a new installed Philips Brilliance iCT Elite, and investigate the quality control test methods in MSCT in daily work. Methods The DCT10 long chamber and the 16 cm dose head phantom was used to detect the CT weighted dose index and the reproducibility of the radiation. The CT performance parameters were detected by the Catphan 500/600 of the American model laboratory. Results Dosimetry, slice thickness, CT number accuracy, scout prescription and alignment light accuracy, low-contrast performance, spatial resolution and CT number uniformity parameters were all in action limits. Conclusion Through CT quality control inspection and daily quality control and quality management, the state and performance deviation of the equipment can be timely mastered and rectification can be made to reduce the downtime and ensure the quality of the inspection image.
Objective To test the quality control of a new installed Philips Brilliance iCT Elite, and investigate the quality control test methods in MSCT in daily work. Methods The DCT10 long chamber and the 16 cm dose head phantom was used to detect the CT weighted dose index and the reproducibility of the radiation. The CT performance parameters were detected by the Catphan 500/600 of the American model laboratory. Results Dosimetry, slice thickness, CT number accuracy, scout prescription and alignment light accuracy, low-contrast performance, spatial resolution and CT number uniformity parameters were all in action limits. Conclusion Through CT quality control inspection and daily quality control and quality management, the state and performance deviation of the equipment can be timely mastered and rectification can be made to reduce the downtime and ensure the quality of the inspection image.
引文
[1]李毅,李超,刘卓.CT质量管理及质量控制测试[J].中国医疗设备,2015,30(3):118-120.
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[12]康立丽,廖炎鹏,杨庭伟,等.CT质量控制检测结果分析与探讨[J].中国医疗设备,2016,31(12):131-132.
[13]谭先健,姚国庆,李怡勇,等.医用CT质量控制现状分析[J].中国医学装备,2017,14(2):106-109.
[14]段小凤,张永寿. C T质量控制检测分析[J].中国医学装备,2016,13(1):119-121.
[15]邹乾,胡军武.CT质量控制与放射防护分析[J].影像研究与医学应用,2017,1(8).
[16]张帅,严勇,王卫东.医用X线CT关键性指标的质量控制研究[J].中国医疗设备,2008,23(3):46-49.
[17]王忠杰.CT机定位光标对实际位置的检测与评价[J].肿瘤影像学,2009,18(2):175.
[2]马继民,刘小波.CT机应用质量控制及计量检测探讨[J].中国医疗设备,2011,26(2):5-7.
[3]杨冬,孙志辉,徐桓,等.基于水本底材料的CT性能测试体模的研制[J].医疗卫生装备,2014,35(2):23-25.
[4]戴晨曦,宋丰言,张和华,等.医用CT机质量控制的标准化探讨[J].中国医疗设备,2015,30(3):114-117.
[5]王博,张鹏,王忠明,等.双源CT质量控制方案技术初步研究[J].医疗卫生装备,2014,35(1):94-97.
[6]郑玲,王朋,李林,等.双源64层CT的质量控制检测[J].医学研究生学报,2013,26(6):618-620.
[7]张岚.AAPM模体和CATPHAN模体在CT机检测时的对比分析[J].中国测试,2002,28(4):31-32.
[8]范荣,郑刚,郑红,等.AAPM与CATPHAN500CT体模的比对测试[J].中国辐射卫生,2008,17(4):445-446.
[9]白玫.CT系统目测分辨率与系统调制传递函数相关性分析[J].中国医疗设备,2011,26(4):11-13.
[10]安瑞金,黄岗.CT图像质量和辐射剂量的影响因素研究[J].生物医学工程与临床,2009,13(2):92-95.
[11]黄开发,凌瑞杰,孙敬智,等.CT质量控制检测程序的解读[J].中国辐射卫生,2015,24(3):266-268.
[12]康立丽,廖炎鹏,杨庭伟,等.CT质量控制检测结果分析与探讨[J].中国医疗设备,2016,31(12):131-132.
[13]谭先健,姚国庆,李怡勇,等.医用CT质量控制现状分析[J].中国医学装备,2017,14(2):106-109.
[14]段小凤,张永寿. C T质量控制检测分析[J].中国医学装备,2016,13(1):119-121.
[15]邹乾,胡军武.CT质量控制与放射防护分析[J].影像研究与医学应用,2017,1(8).
[16]张帅,严勇,王卫东.医用X线CT关键性指标的质量控制研究[J].中国医疗设备,2008,23(3):46-49.
[17]王忠杰.CT机定位光标对实际位置的检测与评价[J].肿瘤影像学,2009,18(2):175.