Ürünler

The Pro-CT phantom may be used for carrying out acceptance and constancy tests of computed tomography systems according to IEC 61223-3-5 and the AAPM (American Association of Physicists  in Medicine) guidelines.
This phantom consists of five test modules placed on an adjustable stand allowing for accurate alignment on the CT table. Markings on modules provide further facilitation of the positioning process. There is no need to fill the phantom with water, which can be very inconvenient, because all modules are filled with a substance whose density is similar to water.

The Phantom can be used to do the following tests:

• artefacts, noise
• homogeneity
• spatial resolution (high contrast resolution)
• sensitivity (low contrast resolution)
• size dependence
• contrast scale
• slice thickness
• alignment
• linearity
• beamwidth

Product features:

• complies with:
  – IEC 61223-3-5
  – IEC 61223-2-6
  – AAPM guidelines
• CE certified
• the Manual provides detailed guidelines for carrying out each test, results assessment and registration

Low contrast module

Technical data (can be modified to customer specifications):

• diameter: 230mm
• thickness: 30mm
• contains three groups of low-contrast objects. In each group, there are rods of the same density, 20mm in height and with a diameter: 2, 3, 4, 5, 7, 9, 11, 13, 15mm. Contrast difference between groups and surrounding material is 0.3, 0.6 and 1% 
• optional subslice targets having a nominal 1.0% contrast and z-axis lengths of 3, 5, and 7mm. For each of these lengths, there are objects of 3, 5, 7 and 9mm in diameter.
• made of acrylic

Sensitometric / contrast module

Technical data (can be modified to customer specifications):

• diameter: 230mm
• thickness: 45mm
• contains 5 sensitometric samples shaped like rods (ø 25mm):PMMA, PTFE, air, polyamide and water
• module made of polythene

Geometry module

Technical data (can be modified to customer specifications):

• diameter: 230mm
• thickness: 50mm
• contains two pairs of aluminium wire ramps whose slope angle tangent is equal to 0.5.
• middles of ramps intersect on the same plane allowing very precise evaluation of the slice location
• contains four PMMA rods (ø 5mm) placed in vertexes of a square (sides 100mm long). Rods are placed on the vertical and horizontal axes of the module. This makes it possible to precisely evaluate the correctness of shape and geometry imaging
• optional eight spheres to evaluate the scanner’s imaging of subslice spherical volumes, diameters: 1.0, 1.5, 2.0, 3.0, 4.0, 6.0, 8.0 and 10.0mm
• module density is similar to water

Spatial / high contrast resolution module

Technical data (can be modified to customer specifications):

• diameter: 230mm
• thickness: 15mm
• contains 11 concentrically placed aluminium elements for spatial resolution evaluation from 1 to 11 LP/cm
• optional, up to 19 additional concentrically placed aluminium elements for spatial resolution evaluation from 12 to 30 LP/cm
• two tungsten carbide beads ø 0.28mm for MTF and SSP calculation

Homogenous module

Technical data (can be modified to customer specifications):

• diameter: 230mm
• thickness: 45mm
• module can be filled with water or polythene