Bone Density Calibration Phantom

The hydroxyapatite (HA) content of the QRM-BDC allows a HU vs. HA calibration with respect to BMD evaluation of bones.

 

The QRM-BDC Phantom houses three 18 mm cylindrical inserts providing 0 (water), 100 and 200 mg HA / ccm. The Phantom can be directly placed under an object to evaluate the bone mineral density (BMD) of the object by CT.
As base material of the three inserts CTwater is used. CTwater is a solid water equivalent plastic offering the same X-ray attenuation properties as real water. 

The shape of the phantom is slightly bended for a correct fit under the object. 

The phantom has a standard length of 200 mm, but is available in different length, up to 700 mm. This is useful for objects measured with an extended scan field. 
Other HA concentrations are also available on request. Please contact us to learn more.

Specifications

Phantom cross section:	120 mm x 25 mm
Standard phantom length:	200 mm
Phantom weight:	400 g
Base material:	soft-tissue-equivalent resin (at 120 kV)
Standard inserts diameter:	18 mm
Standard inserts length:	200 mm (whole phantom length)
Insert I:	100.0 mg HA/cm3
Insert II:	CTwater 0.0 mg HA/cm3
Insert III:	200.0 mg HA/cm3

 

Bone Density Calibration Phantom (6 inserts)

The hydroxyapatite (HA) content of the QRM-BDC allows a HU vs. HA calibration with respect to BMD evaluation of bones.

 

The QRM-BDC Phantom houses six 18 mm cylindrical inserts providing 0 (water), 100, 200, 400, 600, and 800 mg HA / ccm. The Phantom can be directly placed under an object to evaluate the bone mineral density (BMD) of the object by CT.
As base material of the three inserts CTwater is used. CTwater is a solid water equivalent plastic offering the same X-ray attenuation properties as real water. 

The shape of the phantom is slightly bended for a correct fit under the object. 

The phantom has a standard length of 200 mm, but is available in different length, up to 700 mm. This is useful for objects measured with an extended scan field. 
Other HA concentrations are also available on request. Please contact us to learn more.

Specifications

Phantom cross section:	120 mm x 25 mm
Phantom length:	200 - 700 mm
Phantom weight:	750 g (200 mm)
Housing material:	soft-tissue-equivalent resin (at 120 kV)
Standard inserts diameter:	18 mm
Standard inserts length:	200 - 700 mm (whole phantom length)
Inserts specified HA:	0, 100, 200, 400, 600, and 800 mg HA / cm3

 

European Spine Phantom

The standard for quality control in bone mineral densitometry by DXA and QCT.

 

The European Spine Phantom QRM-ESP-04 is now the standard for quality control - accuracy and reproducibility - in spinal BMD quantification for more than a decade [3]. Its design is closely anthropomorphic by its outer measures and internal lumbar vertebrae inserts such that standard patient protocols can be utilized, both in DXA and QCT. 
The phantoms main body consists of water-equivalent resin, the three inserts contain varying amounts of calcium hydroxyapatite (HA) to cover the full physiological range of spongeous and cortical bone densities for all age groups. 

QRM-ESP-04 allows to check reproducibility and accuracy with the following quantities:

• bone mineral content (BMC) in g for DXA
• bone mineral area density (BMD) in g/cm² for DXA
• projected area (A) in cm² for DXA
• trabecular and cortical bone mineral density in g/cm³ for QCT
• cortical thickness in mm for QCT
• positioning accuracy in QCT

Specifications

Material main body:	tissue-equivalent plastic
Spongious bone densities:	50,100,200 HA(mg/cm3)
Area density of vertebrae:	0.5, 1.0, 1.5 (g/cm2)
HA in cortical structures:	400, 800 HA (mg/cm3)
Accuracy:	∼ 3% of specified values  ∼ 1% of certified values
Phantom body:	260 x 180 mm2(± 2mm)
Phantom weight:	4300 g

 

QRM-DXA-Spine-QA-Phantom

A Phantom for Quality Assurance of DXA Bone Mineral Density Measurements of the Spine.

 

Designed on the basis of the well established European Spine Phantom (ESP) the QRM-DXA-Spine-QA-Phantom incorporates a simplified and more cost effective design of the vertebrae specifically developed for quality assurance (QA) and stability monitoring of Dual X-ray Absorptiometry (DXA) devices. 

The complex vertebrae of the ESP are replaced by a more dedicated shape explicitly adapted to the needs of a DXA QA-Phantom. 
With the QRM-DXA-Spine-QA-Phantom, areal Bone Mineral Density (aBMD) can be easily determined in AP and lateral projections. 

Other HA densities of the vertebra are available upon request.

Benefits:

• bone mineral content (BMC) in g
• bone mineral areal density (BMD) in g/cm² for DXA AP and lateral projections
• projected area (A) in cm²

Specifications

Phantom body:	tissue-equivalent plastic at 120 kV (CT)
L1 - L3:	3 full homogeneous vertebrae with a HA concentration of 270 mg/cm3
aBMD (AP):	1.0 g/cm2
Accuracy:	∼ 3% of specified values  ∼ 1% of certified values
Phantom body:	260 x 180 mm2(± 2mm)
Phantom weight:	4300 g