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Dental Conebeam CT QA Phantom - EXPERT

Measure the imaging performance of dental Cone-Beam Computed Tomography equipment. Perform acceptance and constancy tests with a compact easy-to-use phantom.

Order-number: QRM-dentalCBCT-QA (EXPERT)

download pdf: QRM-dentalCBCT-QA (EXPERT)

QRM phantom QRM phantom QRM phantom

click image to enlarge

The QRM-dentalCBCT Phantom (EXPERT) is designed to evaluate the imaging performance of conebeam-ct (CBCT) devices according to international guidelines (e.g. dental CBCT, Digital Volume Tomography).

The pahntom offers the possibility to assess image quality metrics in accordance with national and international standards (e.g. DIN IEC 61223-3-5 or DIN IEC 61223-2-6)

The following image quality metrics can be obtained:

  • CT value uniformity
  • CT value accuracy
  • image noise
  • contrast-to-noise ratio
  • spatial resolution (3D MTF, sphere)
  • spatial resolution (visual, hole pattern)
  • artifact behavior metal/bone/soft tissue

An automated evaluation software (ImpactIQ Wizard) is available separately or as a package with the phantom.

Please note:
If using the software, your systems FOV has to completely cover the phantom in height, otherwise a correct automated evaluation is not possible.
Requirement for FOV (Field of View) for the EXPERT phantom:
FOVxy > 100 mm; FOVz > 100mm

Please ask for more information: info (at) qrm.de

5 defined sections

Section I 4 Inserts in water: air, -3% contrast,
+3% contrast and bone arranged
Section II centrally placed high attenuating sphere
Section III homogenious water equivalent slice
Section IV acrylic resolution pattern
Section V Ti rods and tissue equiv. inserts


Phantom diameter: 100 mm
Phantom height: 100 mm
Body: water equiv.
Sphere: Al, D = 12 mm
Inserts: D 13 mm, L 17.5 mm
D 9 mm, L 17.5 mm
Hole pattern (h/v): 0.3 to 1.0 mm
Extension ring: D = 160 mm