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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

產(chǎn)品編號	Description
CTP700	Complete Catphan® 700 including housing, case, and test modules
CTP700	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
CTP600	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