英國(guó)利茲(LEEDS TEST)CBCT-161錐形束CT模體

英國(guó)利茲CBCT-161錐形束CT模體用于CBCT體系的恒定性測(cè)試。
英國(guó)利茲CBCT-161錐形束CT模體包括：
PMMA圓柱體，直徑160mm，長(zhǎng)度40mm
精確的水平和顏料填充的中心標(biāo)記，便于重復(fù)定位
三腳架為通用定位
軟組織當(dāng)量; PMMA
骨當(dāng)量; PVC-密度為1.30-1.45克/厘米
氣隙
CBCT-161允許測(cè)量以下圖像質(zhì)量參數(shù)：
像素密度值線性
噪聲
CNR
同質(zhì)性
文物
MTF
 
CBCT-161-A模體是CBCT-161的附件，用于CBCT系統(tǒng)的驗(yàn)收測(cè)試。
CBCT-161-A包括：
PMMA圓柱體，直徑160mm，長(zhǎng)度60mm
PMMA圓柱體;直徑160 mm，長(zhǎng)度50 mm，帶螺紋孔，用于連接三腳架

英國(guó)利茲CBCT-161錐形束CT模體符合標(biāo)準(zhǔn)：
DIN 6868-161

CBCT-161 phantom is used for constancy testing of CBCT systems.
CBCT-161 comprises:
PMMA cylinder with;160 mm diameter, 40 mm length
Spirit level and pigment-filled centre markings for easy and reproducible positioning
Tripod for universal positioning
Soft tissue equivalent; PMMA
Bone equivalent; PVC- density 1.30 – 1.45 g/cm
Air gap
CBCT-161 permits measurement of the following image quality parameters:
Pixel Intensity Value Linearity
Noise
CNR
Homogeneity
Artefacts
MTF
 
CBCT-161-A phantom is an accessory to CBCT-161 and is used for acceptance testing of CBCT systems.
CBCT-161-A comprises:
PMMA cylinder with;160 mm diameter, 60 mm length
PMMA cylinder with;160 mm diameter, 50 mm length, with threaded hole for attachment to a tripod
Conforms to standards:
DIN 6868-161