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CT performance testing phantom Catphan 500
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Brief description:American Phantom Laboratory CT performance testing phantom Catphan 500 has been recognized by well-known CT manufacturing companies, and they all use it to mark the imaging performance of CT machines. This phantom has many advantages over the water-filled phantom produced and processed based on AAPM Report No. 1 of 1977: Because it is a solid phantom, there is no water leakage problem; the storage box can be used as a phantom support, and the phantom can be extended out of the scanning bed; the low-contrast resolution phantom is made of the same material with different densities, etc.
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Detailed introduction
l American phantom laboratory CT performance testing phantom Catphan 500 It has been recognized by well-known CT manufacturing companies all over the world, and they all use it to indicate the imaging performance of CT machines. This phantom has many advantages over the water-filled phantom produced and processed based on AAPM Report No. 1 of 1977: Because it is a solid phantom, there is no water leakage problem; the storage box can be used as a phantom support, and the phantom can be extended out of the scanning bed; the low-contrast resolution phantom is made of the same material with different densities, etc.
Product features
l The phantom is used to test hospitalsCT performance, made of plastic, Catphan500, Catphan600, Catphan5700, CTP500, CTP600, CTP700, etc. The other is the hospital's magnetic resonance performance testing phantom, which is completely made of plexiglass. There are also two models, the cylindrical one is Magphan® SMR170, and the manufacturer is the American Phantom Laboratory.
Product features
l Phantomlab worked with physicist and philosopher Goodenough, Ph.D., to develop the Catphan® phantom. The new Catphan® phantom design is based on more than two decades of scientific research and clinical experience in medical imaging instrumentation. This phantom can be used in various operational evaluations and quality assurance systems of axial and spiral CT scanning imaging systems.
l Different modules are composed ofCatphan® phantoms, these modules are still suitable for continuous 20cm space. To use the water container in Catphan® 424, all Catphan® components are constructed from Solid-cast material. Solid-cast construction reduces the material's water absorption and dew problems associated with water bath phantoms.
Product application
l includeThere are three basic Catphan® phantoms including Catphan®500. Catphan® is specially designed for spiral CT scanning.
l includeSelective test modules of Catphan® phantoms and their standards are frequently used to carry out many experimental measurements. Includes the following
Evaluation of parameters:
l Scan geometry(layer width and sensitivity curve)
l 
High resolution(to 20 pairs/cm)
l Phantasm positioning verification
l Patient Positioning System Validation
l supra-slice low contrast sensitivity
l subslice low contrast sensitivity
l spatial uniformity
l Scan increment
l CT system noise (accuracy)
l circular symmetry
l Sensitivity(linear)
l pixel(matrix) size
l dynamic scan
Point spread function and modulation transfer function (MTF) of X, Y, Z axes
Catphan 500 selection information
The original Catphan 500 documentation describes performance evaluation for axial and spiral CT imaging systems and lists multiple imaging tests.
- Review the existing descriptions of scan geometry, high resolution, low contrast, spatial uniformity and noise.
- Specify the required modules, accessories and scanner information when confirming a configuration.
- Catphan 500, 500+plus and CTP700 have separate documentation; similar names do not establish identical module configurations.
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