QUART DVT_AP CBCT模体，QUART DVT_AP锥形束CT模体
DIN 6868-161 CBCT图像质量测试模型
QUART DVT_AP CBCT模体，QUART DVT_AP锥形束CT模体被设计用作包括CT应用在内的3D成像设备的通用工具。模体完全符合DIN 6868-161的CBCT应用验收测试。
配合专门开发的软件（QUART DVT_TEC），可以执行快速，**的CT IQ测试。
只有一次曝光需要创建包含所有必需参数的3D数据集来评估图像质量。通过独特的QUART QA / QC软件进行自动评估.Phantom可应用于从4x4cm到大视野（FOV）的场地尺寸。一个普遍的持有人或定制的模体持有人可用于简单和可重复的定位。
QUART DVT_AP CBCT模体，QUART DVT_AP锥形束CT模体技术规格
空间分辨率：线路传播功能
分辨率：Z分辨率
标准测试对象：PMMA /空气/ PVC
材料等同物：自由空气/软的组织或骨头
定位工具：线性（顶部）/选择性标记
尺寸：Ø16厘米，身高：15厘米
散射辐射模块：1×6厘米/ 1×5厘米
QUART DVT_AP CBCT模体，QUART DVT_AP锥形束CT模体参数
奈奎斯特频率（NF）
对比噪声比（CNR）
均匀性/图像均匀性
Z-分辨率
调制传递函数
文物，图像缺陷
优点图
QUART DVT_AP CBCT模体，QUART DVT_AP锥形束CT模体英文介绍:
QUART DVT_AP
DIN 6868-161 CBCT Image Quality Test Phantom
The QUART DVT_AP phantom is designed to be used as a universal tool for 3D imaging equipment including CT applications. The phantom fully complies with DIN 6868-161 for acceptance tests in CBCT applications.
In conjunction with a specially developed software (QUART DVT_TEC), quick and comprehensive CT IQ tests can be performed.
Only one exposure required to create 3D data set containing all required parameters to evaluate image quality. Automated evaluation through unique QUART QA/QC software.Phantom can be applied for field sizes from 4x4cm to large fields-of-view (FOV). A universal holder or customised phantom holders available for easy and reproducible positioning.
Technical Specifications
SPATIAL RESOLUTION: Line spread function
RESOLUTION: Z-Resolution
STANDARD TEST OBJECTS: PMMA / Air / PVC
MATERIAL EQUIVALENTS: Free Air / Soft tissue / Bone
POSTIONING TOOLS: Linear (top side) / Selective markers
SIZE: Ø 16 cm, height: 15 cm
SCATTER RADIATION MODULES: 1x 6 cm / 1x 5 cm
Parameters
Nyquist Frequency (NF)
Contrast-to-Noise Ratio (CNR)
Homogeneity / Image Uniformity
Z-Resolution
Modulation Transfer Function
Artefacts, Image Flaws
Figure of Merit
References
EFOMP working group, Quality control in cone-beam computed tomography (CBCT) EFOMP-ESTRO-IAEA protocol (summary report), Physica Medica, Volume 39, July 2017, Pages 67-72.