北京汇成益通科贸有限公司
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品牌:模体实验室型号:Catphan 500/508测量对象:CT成像性能测量范围:CT 的成像性能检测准确度:1加工定制:非加工定制外形尺寸:150×250mm重量:5kg 美国The Phantom Laboratory Catphan 500 CT性能测试模体已得到全球知名CT生产公司的认同,都用它来标示CT机的成像性能。该模体较依据AAPM 1977年1号报告生产加工的注水模体有很多优点:因是固体模体,没有漏水的问题;储运箱能当模体支架,模体能探出扫描床外;低对比度分辨力模体由同一种物质不同密度材料制成等。 如需要联系周先生18610370413 一、参数的评估: 扫描几何学(层宽和灵敏度曲线) 高分辨率(最高至20线对/厘米) 体模定位验证 病人定位系统验证 supra-slice低对比度灵敏度 subslice低对比度灵敏度 空间均匀性 扫描增量 CT系统噪声(精度) 圆对称性 灵敏度(线性) 象素(矩阵)尺寸 动态扫描 X、Y、Z轴的点扩散函数和调制传递函数(MTF) •patient alignment system check •low contrast sensitivity •comparative subslice and supra-slice low contrast sensitivity •spatial uniformity •scan incrementation •noise (precision) of CT systems •circular symmetry •sensitometry (linearity) •pixel (matrix) size •point spread function and modulation transfer function (MTF) for the x, y, and z axes Catphan® 700(Stock CTP700) - Complete Catphan® including housing and case, equipped with the following test modules: CTP682 - Geometry sensitometry and point source module CTP714 - 30 line pair high resolution module CTP515 - Subslice and supra-slice low contrast CTP721 - Wave insert CTP723 - Bead blocks CTP712 - Uniformity section Catphan 600®(Stock CTP600) - Complete Catphan® including housing and case, equipped with the following test modules: CTP404 - Slice width, sensitometry and pixel size CTP591 - Bead Geometry module CTP528 - 21 line pair high reslution and point source CTP515 - Subslice and supra-slice low contrast CTP486 - Solid image uniformity module Catphan® 500(Stock CTP500) - Complete Catphan including housing and case, equipped with the following test modules: CTP401 - Slice width, sensitometry and pixel size CTP528 - 21 line pair high resolution and point source CTP515 - Subslice and supra-slice low contrast CTP486 - Solid image uniformity module Catphan® 412(Stock CTP412) - Complete Catphan including housing and case, equipped with the following test modules: CTP401 - Slice width, sensitometry and pixel size CTP445 - MTF module with bead point source CTP446 - 20 line pair high resolution CTP263 - Low contrast CTP486 - Solid image uniformity module Catphan® 424(Stock CTP424) - Complete Catphan including housing and case, equipped with the following test modules: CTP401 - Slice width, sensitometry and pixel size CTP445 - MTF module with bead point source CTP446 - 20 line pair high resolution CTP263 - Low contrast CTP422 - Liquid bath Catphan® 440(Stock CTP440) - Complete Catphan including housing and case, equipped with the following test modules: CTP401 - Slice width, sensitometry and pixel size CTP592 - Low and high contrast resolution module