 
    
    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
	精确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