Cone-Beam Phantom

Compact design for testing diagnostic and cone-beam CT imaging performance

Low-contrast resolution

2 different models with different low contrast sections. The basic version offers contrasts between -3 HU and -20 HU in one section. In addition, the expert version offers three low contrast sections with contrasts between -3 and -200 HU.

Spatial resolution (to 30 lp/cm) and MTF

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.

CT Values Accuracy

As part of the QA, the CT values should be monitored regularly. The image contrast and HU-scale section quantifies the machine's HU-scale and the bone contrast achieved with different settings.

Noise & Homogeneity & Geometric Accuracy

Signal-to-Noise Ratio (SNR) and homogeneity can be checked using plain sections in our phantoms. The geometric accuracy section can be used to analyze image distortion.

Cone-Beam Phantom Interactive

Body material: Soft tissue-equivalent plastic

Cone-Beam Phantom

Our tissue-equivalent phantoms are designed to cover the whole range of image quality parameters and offer the possibility to assess all relevant image quality metrics in accordance with national and international guidelines (e.g. TG 66) and standards (e.g. DIN IEC 61223-3-5 or DIN IEC 61223-2-6):

2 different models, Basic and Expert versions

Cone-Beam Phantom

It is essential to fully quantify the imaging performance of volumetric X-ray scanners and to compare different systems or technical solutions. We offer 2 different models with 8 sections (Basic, QRM-10120) and 9 (Expert, QRM-10103) sections in a compact phantom body:

Low-contrast capabilities

CT value uniformity

CT value accuracy

Image noise

Contrast-to-noise ratio (CNR)

Spatial resolution (ESF, MTF, wedges)

Spatial resolution (visual, line pattern)

Geometric accuracy in-plane

Multi-purpose tissue equivalent phantoms for comparison of different CT and CBCT scanner solutions

Cone-Beam Phantom, Expert (QRM-10103)

The phantom body consists of 9 sections, allowing all relevant image quality metrics to be assessed.

Section A1: Contrast resolution steps (-60, -90, -120, -200 HU)
Section A2: Contrast resolution steps (-20, -25, -30, -45 HU)
Section A3: Contrast resolution steps (-3, -5, -10, -15 HU)
Section B - Spatial resolution (line patterns to 30 lp / cm)
Section C - Scaling & noise (3 inserts representing bone, water and air)

Section D - MTF wedges
Section E - Geometric distortion
Section O - Plain section for noise, homogeneity, or custom-
made adapter for individual mounting

For the customized version, please contact us.

Contact us!

Cone-Beam Phantom, Basic (QRM-10120)

The phantom body consists of 8 sections, allowing all relevant image quality metrics to be assessed.

Section A - Contrast resolution steps (-3, -5, -10, -20 HU)
Section B - Spatial resolution (line patterns to 30 lp / cm)
Section C - Scaling & noise (3 inserts representing bone, water and air)

Section D - MTF wedges
Section E - Geometric distortion
Section O - Plain section for noise, homogeneity, or custom-made adapter for individual mounting

For the customized version, please contact us.

Contact us!

Technical Specifications

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

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