德国QRM-ESP腰椎体模,热卖产品

德国QRM-ESP腰椎体模,

德国QRM-ESP欧洲通用型腰椎体模产品简介：

双能X线骨密度仪（DXA）的面积骨密度和定量CT（QCT）的体积骨密度的正位和侧位方向的腰椎骨矿物质密度的校正 ?

QRM-ESP骨密度模体应用范围：? 用于双能X线骨密度仪（DXA）的面积骨密度和定量CT（QCT）的体积骨密度的正位和侧位方向的腰椎骨矿物质密度的校正。 体模分成3段，正位扫描下,各段骨密度值分别约为:0.50、1.00、1.50gcm2。 骨密度由低到高,依次将3段表示为L1、L2、L3。

The standard phantom for quality control in spine bone mineral densitometry by DXA and qCT

}??International standard in spine bone mineral densitometry by DXA and qCT

}?Must-have for multi-center studies or single place testing

}?Three vertebrae with different bone mineral content

The European Spine Phantom (ESP) with its anthropomorphic design is the ideal tool for quality control tests of bone mineral densitometry in DXA and qCT.

The phantom is the standard for quality control - accuracy and repeatability - BMD quantification of the spine for more than two decades. Its closely anthropomorphic design with

three internal lumbar vertebrae inserts allows to utilize standard patient protocols, both, in DXA and qCT.

The main body of the phantom consists of water-equivalent material. The three lumbar spine inserts contain different well-defined amounts of calcium hydroxyapatite (CaHA) to

cover the entire physiological range of spongious and cortical bone densities of all age groups.

Each phantom is separately calibrated to the reference standard ESP, containing analytically determined bone mineral densities.

It allows checking reproducibility and accuracy of the following quantities:

- Area bone mineral density (area BMD) in gcm2 for DXA

-??Trabecular and cortical volume bone mineral density (vol.BMD) in gcm3 for qCT

- Cortical thickness in mm for qCT

- Positioning accuracy in qCT

Specification

Phantom dimension 260 mm x 180 mm

Phantom height 110 mm

Phantom weight 4.3 kg

Body material ? ? ? ? ? ? Water-equivalent material?(CTwater), 0 HU at (80 ... 140) kV1

Phantom accuracy ? ? ? All CaHA materials are within?± 5% of specified values

Accuracy of calibrated ??area BMD: ± 5 mgcm2

values ? ? ? ? ??vol. BMD: ± 2 mgcm3

L1 ? ?0.05 0.5 ? 0.4 ? 0.4

L2 ? ?0.1 ? 1 ? ? ?0.8 ? 0.4

L3 ? ?0.2 ? 1.5 ? 0.8 ? 0.4