Cone-Beam Phantom

For testing the imaging performance in diagnostic CT and Cone-Beam CT

  • Multipurpose phantom for comparison of different CT and CBCT scanner solutions
  • Assess all relevant image quality metrics
  • Provides different low contrast sections and spatial resolution bar patterns
  • Allows MTF measurements in different orientations

 

The phantom is essential to fully quantify the imaging performance of all kind of volumetric X-ray scanners and to compare different systems or technical solutions.

The dedicated low contrast sections provide an ideal environment to test the system's low contrast resolution. Using the spatial resolution bar patterns, you can assess the in-plane resolution of the system in a direct visual manner. Additional edge inserts determine the system's MTF in different orientations. The image contrast and HU-scale section quantifies the machine's HU-scale and the bone contrast achieved with different settings. Additionally, the geometric accuracy, the CNR and the image noise of the scanner can be evaluated.

 

 

Cone-Beam Phantom, Basic, QRM-10120

Cone-Beam Phantom, Expert, QRM-10103

Specifications

Diameter: 160 mm
Height: 163 mm
Section height: 20 mm
Body Material: Soft tissue-equivalent (at 120 kV)
  The phantom body comprises 8 sections
Section A- Contrast resolution Contrast steps of -3, -5, -10, -20 HU
  Inserts diameter in steps: 2, 4, 8, 16, 32 mm, respectively
Section B - Spatial resolution: 14 circular aligned line patterns: 4 to 30 lp/cm
Section C - Scaling & noise: 3 inserts (Ø 24 mm): bone-equivalent material (400 mg HA / cm³), water-equivalent (CTwater) and air
Section D - MTF wedges: Two PTFE wedges perpendicularly aligned for evaluating the MTF in different orientations
  PTFE 20 x 16 x 80 mm
Section E - Geometric distortion: Hole grid, consisting of 177 holes (Ø 3mm) to measure the geometric distortion in the image
Section O - Plain: Measure noise and homogeneity
  Optional space for custom-made adapter for individual mounting
Diameter: 160 mm
Height: 183 mm
Section height: 20 mm
Body Material: Soft tissue-equivalent (at 120 kV)
  The phantom body comprises 9 sections
Section A Contrast resolution
Section A1: contrast steps: -60, -90, -120, -200 HU
Section A2: contrast steps: -20, -25, -30, -45 HU
Section A3: contrast steps: -3, -5, -10, -15 HU
  Inserts diameter in steps: 2, 4, 8, 16, 32 mm, respectively
Section B - Spatial resolution: 14 circular aligned line patterns: 4 to 30 lp/cm
Section C - Scaling & noise: 3 inserts (Ø 24 mm): bone-equivalent material (400 mg HA / cm³), water-equivalent (CTwater) and air
Section D - MTF wedges: Two PTFE wedges perpendicularly aligned for evaluating the MTF in different orientations
  PTFE 20 x 16 x 80 mm
Section E - Geometric distortion: Hole grid, consisting of 177 holes (Ø 3mm) to measure the geometric distortion in the image
Section O - Plain: Measure noise and homogeneity
  optional space for custom-made adapter for individual mounting

Related Videos

Related Downloads

Spec
ConeBeam Phantom (Basic) ( 2 MB )
Spec
ConeBeam Phantom (EXPERT) ( 2 MB )
Catalog
QRM Phantoms for X-ray Imaging ( 5 MB )
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