英国利兹(LEEDS TEST)CBCT-161锥形束CT模体
英国利兹CBCT-161锥形束CT模体用于CBCT体系的恒定性测试。 英国利兹CBCT-161锥形束CT模体包括： PMMA圆柱体，直径160mm，长度40mm **的水平和颜料填充的中心标记，便于重复定位 三脚架为通用定位 软组织当量; PMMA 骨当量; PVC-密度为1.30-1.45克/厘米 气隙 CBCT-161允许测量以下图像质量参数： 像素密度值线性 噪声 CNR 同质性 文物 MTF CBCT-161-A模体是CBCT-161的附件，用于CBCT系统的验收测试。 CBCT-161-A包括： PMMA圆柱体，直径160mm，长度60mm PMMA圆柱体;直径160 mm，长度50 mm，带螺纹孔，用于连接三脚架
英国利兹CBCT-161锥形束CT模体符合标准： 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