QUART DVT_AP CBCT模體，QUART DVT_AP錐形束CT模體詳細(xì)介紹：
QUART DVT_AP CBCT模體，QUART DVT_AP錐形束CT模體
DIN 6868-161 CBCT圖像質(zhì)量測(cè)試模型
外部直徑145mm,高度15mm;
內(nèi)部小圓柱直徑22mm,高10mm,大圓柱直徑30mm,高度15mm
體模材質(zhì)：聚甲基丙烯酸甲脂密度：1.18g/CM3,透光率≥92%
符合：YY/T 0795-2010 口腔X射線(xiàn)數(shù)字化體層攝影設(shè)備 專(zhuān)用技術(shù)條件
QUART DVT_AP CBCT模體，QUART DVT_AP錐形束CT模體被設(shè)計(jì)用作包括CT應(yīng)用在內(nèi)的3D成像設(shè)備的通用工具。模體完全符合DIN 6868-161的CBCT應(yīng)用驗(yàn)收測(cè)試。
配合專(zhuān)門(mén)開(kāi)發(fā)的軟件（QUART DVT_TEC），可以執(zhí)行快速，全面的CT IQ測(cè)試。
只有一次曝光需要?jiǎng)?chuàng)建包含所有必需參數(shù)的3D數(shù)據(jù)集來(lái)評(píng)估圖像質(zhì)量。通過(guò)獨(dú)特的QUART QA / QC軟件進(jìn)行自動(dòng)評(píng)估.Phantom可應(yīng)用于從4x4cm到大視野（FOV）的場(chǎng)地尺寸。一個(gè)普遍的持有人或定制的模體持有人可用于簡(jiǎn)單和可重復(fù)的定位。
QUART DVT_AP CBCT模體，QUART DVT_AP錐形束CT模體技術(shù)規(guī)格
空間分辨率：線(xiàn)路傳播功能
分辨率：Z分辨率
標(biāo)準(zhǔn)測(cè)試對(duì)象：PMMA /空氣/ PVC
材料等同物：自由空氣/軟的組織或骨頭
定位工具：線(xiàn)性（頂部）/選擇性標(biāo)記
尺寸：?16厘米，身高：15厘米
散射輻射模塊：1×6厘米/ 1×5厘米
QUART DVT_AP CBCT模體，QUART DVT_AP錐形束CT模體參數(shù)
奈奎斯特頻率（NF）
對(duì)比噪聲比（CNR）
均勻性/圖像均勻性
Z-分辨率
調(diào)制傳遞函數(shù)
文物，圖像缺陷
優(yōu)點(diǎn)圖
QUART DVT_AP CBCT模體，QUART DVT_AP錐形束CT模體英文介紹:
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: ? 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.
