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產(chǎn)品介紹
模體用來(lái)檢測(cè)醫(yī)院的CT性能,由塑料制成,Catphan500, Catphan600, Catphan5700, CTP500, CTP600, CTP700等. 另外一個(gè)是醫(yī)院的磁共振性能檢測(cè)模體,完全使用有機(jī)玻璃制成,也有兩個(gè)型號(hào),其中的圓柱形,就是Magphan® SMR170,廠家是美國(guó)模體實(shí)驗(yàn)室。
功能:Phantomlab與物理學(xué)家兼哲學(xué)家Goodenough, Ph.D.,共同努力發(fā)展了Catphan®模體。新型的Catphan®模體設(shè)計(jì)是基于醫(yī)療成像儀器方面二十多年的科學(xué)研究和臨床經(jīng)驗(yàn)。該種模體可以應(yīng)用于軸向和螺旋CT掃描成像系統(tǒng)的各種操作評(píng)價(jià)以及質(zhì)量保證系統(tǒng)。
不同的模塊組成了Catphan®模體,這些模塊尚可適用于連續(xù)20cm空間。為了在Catphan®424中使用水容器,所有Catphan®組件都是由Solid-cast材料構(gòu)成。Solid-cast結(jié)構(gòu)可以降低材料的吸水性和水浴模體相關(guān)的露水問(wèn)題。
包括Catphan®500在內(nèi)共有三種基本Catphan®模體。Catphan®是為螺旋CT掃描而特殊設(shè)計(jì)的。
包括Catphan®模體的選擇性測(cè)試模塊及其標(biāo)
準(zhǔn),經(jīng)常被用于進(jìn)行許多實(shí)驗(yàn)測(cè)量。包括以下
一、參數(shù)的評(píng)估:
掃描幾何學(xué)(層寬和靈敏度曲線)
高分辨率(最高至20線對(duì)/厘米)
體模定位驗(yàn)證
病人定位系統(tǒng)驗(yàn)證
supra-slice低對(duì)比度靈敏度
subslice低對(duì)比度靈敏度
空間均勻性
掃描增量
CT系統(tǒng)噪聲(精度)
圓對(duì)稱性
靈敏度(線性)
象素(矩陣)尺寸
動(dòng)態(tài)掃描
X、Y、Z軸的點(diǎn)擴(kuò)散函數(shù)和調(diào)制傳遞函數(shù)(MTF)
| 產(chǎn)品編號(hào) | 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 |