美国phantomlab
美国phantomlab Catphan500 CT性能测试体膜产品介绍：
产品型号：Catphan500
产品品牌：美国phantomlab
产品类别：CT性能测试体膜
产品备注：CT性能测试体膜
美国phantomlab Catphan500 CT性能测试体膜产品简介：
美国Catphan 500 CT性能测试模体已得到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。
美国phantomlab Catphan500 CT性能测试体膜产品概述：
医疗模体：
模体用来检测医院的CT性能，由塑料制成，Catphan500, Catphan600, Catphan5700, CTP500, CTP600, CTP700等. 另外一个是医院的磁共振性能检测模体，使用有机玻璃制成，也有两个型号，其中的圆柱形，就是Magphan® SMR170，厂家是美国模体实验室。
功能：Phantomlab与物理学家兼哲学家Goodenough, Ph.D.,共同努力发展了Catphan®模体。新型的Catphan®模体设计是基于医疗成像仪器方面二十多年的科学研究和临床经验。该种模体可以应用于轴向和螺旋CT扫描成像系统的各种操作评价以及质量保证系统。
不同的模块组成了Catphan®模体，这些模块尚可适用于连续20cm空间。为了在Catphan®424中使用水容器，所有Catphan®组件都是由Solid-cast材料构成。Solid-cast结构可以降低材料的吸水性和水浴模体相关的露水问题。
包括Catphan®500在内共有三种基本Catphan®模体。Catphan®是为螺旋CT扫描而特殊设计的。
包括Catphan®模体的选择性测试模块及其标准，经常被用于进行许多实验测量。包括以下
一、参数的评估：
扫描几何学(层宽和灵敏度曲线)
高分辨率(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
| 产品编号 | Description |
| CTP700 | Complete Catphan® 700 including housing, case, and test modules |
| Includes the following: CTP682-Geometry sensitomety 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 | |
| CTP600 | Complete Catphan® 600 including housing, case, and test modules |
| Includes the following: CTP404-Slice width, sensitometry and pixel size, CTP591-Bead geometry module, CTP528-21 line pair high resolution and point source, CTP515-Subslice and supra-slice low contrast, CTP486-Solid image uniformity module | |
| CTP500 | Complete Catphan® 500 including housing, case, and test modules. Includes the following: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 |
| CTP412 | Complete Catphan® 412 including housing, case, and test modules. Includes the following:CTP401-Slice width, sensitometry and pixel size, CTP446-20 line pair high resolution, CTP263-Low Contrast, CTP486-Solid image uniformity module |
| CTP424 | Complete Catphan® 424 including housing, case, and test modules. Includes the following: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. |
| CTP440 | Complete Catphan® 440 including housing, case, and test modules. Includes the following:CTP401-Slice width, sensitometry and pixel size, CTP592-Low and high contrast resolution module |
| CTP401 | Slice width, sensitometry and pixel size module |
| CTP404 | Slice width, sensitometry and pixel size module |
| CTP445 | MTF Module with bead point source |
| CTP446 | 20 line pair high resolution module |
| CTP528 | 21 line pair high resolution and point source module |
| CTP422 | Liquid Bath |
| CTP486 | Solid image uniformity module |
| CTP263 | Low Contrast Module |
| CTP515 | Sub-slice and supra-slice low contrast module |
| CTP592 | Low and high contrast resolution module |
| CTP591 | 40mm bead geometry module |
| CTP501 | 16cm housing and mount with modules CTP591 & CTP486-3 |
| CTP295 | Liquid bath scan alignments inserts |
| CTP291 | Liquid bath acrylic LSF inserts |
| CTP299 | Teflon annulus |
| CTP539 | 30cm OD uniformity material body annulus |
| CTP540 | 35cm OD uniformity material body annulus |
| CTP650 | 38cm OD uniformity material body annulus |
| CTP579 | 25-35cm oval OD uniformity material body annulus |
| CTP651 | 30-38cm oval OD uniformity material body annulus |
| CTP599 | 45-55cm oval OD uniformity material body annulus |
| CTP326 | 32cm OD acrylic body annulus |
| CTP541 | 16cm OD housing and mount |
| CTP536 | 35cm center off-center housing |
| CTP553 | 32cm Acrylic Dose Phantom |
| CTP554 | 16cm Acrylic Dose Phantom |
| CTP558 | Dose Phantom Set includes 16cm & 32cm
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