CIRS 011A*模体，CIRS 011A*X射线*等效模体描述
CIRS 011A*模体，CIRS 011A*X射线*等效模体是美国*学会和*学院推荐*机成像质量评价模型

为今天的****成像系统提供了一个精致的*工具。

CIRS 011A*模体经过验证的模拟技术可以使*等效，逼真的模型用于*摄影*。

树脂材料模仿一系列**的光子衰减系数。被模仿的人*的平均元素组成是基于Hammerstein报道的脂肪和腺体*的单个元素组成。

衰减系数通过使用JHHu*ell的“混合规则”和光子质量衰减和能量吸收系数表来计算。

CIRS 011A*模体包含旨在测试新一代**机的阈值的目标。4.5厘米厚，并模拟平均腺体*成分。

旨在测试任何*X线照相系统的性能。模型中的物体模拟钙化，导管和*块中的纤维性钙化。在体模范围内测试物体的范围应该从任何系统上应该可见的物体到Zui好的*摄影系统上难以解决的物体。





CIRS 011A*模体，CIRS 011A*X射线*等效模体技术参数：
1. 线对细节 1) 20 lp/mm 2组 水平方向与垂直方向布局

2. 碳酸钙病灶点 2) 0.13 3)0.165 4)0.196 5)0.23 6)0.275 7)0.4 8)0.23 9)0.196 10)0.165 11)0.23 12)0.196 13)0.165

3. 阶梯楔形块(1cm) 14)100%腺体* 15)70%腺体* 16) 50%腺体* 17) 30%腺体* 18)100%脂肪*

4. 尼龙纤维 19)1.25mm 20)0.83mm 21)0.71mm 22)0.53mm 23)0.3mm

5. 半球形团块(75%腺体,25%脂肪) 24)厚度4.76mm 25) 厚度3.16mm 26)厚度2.38mm 27)厚度1.98mm 28)厚度1.59mm 29)厚度1.19mm 30)厚度0.9mm

6. 光密度 31)参照区

7. 线束边界 32)*细节

DESCRIPTION

A Refined Quality Assurance Tool for Today's Advanced Imaging Systems.

Proven simulation technology enables the use of tissue-equivale*ealistically-shaped pha*ms for mammographic quality assurance.

Resin material mimics the photon attenuation coefficients of a range of breast tissues. Average elemental com*ition of the human breast being mimicked is based on the individual elemental com*ition of adi*e and glandular tissue reported by Hammerstein.

Attenuation coefficients are calculated by using the "mixture rule" and the Photon Mass Attenuation and Energy Absorption Coefficient Table of J.H. Hu*ell.

Contains targets that are engineered to test the threshold of the new generation of mammography machines. 4.5 cm thick and simulates an *erage glandular tissue com*ition.

Designed to test the performance of any mammographic system. Objects within the pha*m simulate calcificati*, fibrous calcificati* in ducts and tumor masses. Test objects within the pha*m range in size from those that should be visible on any system to objects that will be difficult to resolve on the best mammographic systems.