Quantitative Assessment of Variation in CT Parameters on Texture Features: Pilot Study Using a Nonanatomic Phantom
Quantitative Assessment of Variation in CT Parameters on Texture Features: Pilot Study Using a Nonanatomic Phantom
复制标题
DOI：
10.3174/ajnr.a5139
复制
发表时间：
2017-05-01
影响因子：
3.5
通讯作者：
Sakai, O.
中科院分区：
文献类型：
--
作者：
Buch, K.;Li, B.;Sakai, O.
我们的目的是评估的纹理特征的变化的基础上的CT参数的变化的幻影。使用不同的毫安、千伏、切片厚度、间距和采集模式进行扫描。42纹理特征提取使用内部开发的Matlab程序。进行双尾t检验和假检测分析，基于探测器阵列配置（Q值= 0.001-0.006）、切片厚度（Q值= 0.0002-0.001）和采集模式（Q值= 0.003-0.006），纹理特征存在显著差异。毫安和千伏的变化没有明显的影响。
Our aim was to evaluate 'changes in texture features based on variations in CT parameters on a phantom. Scans were performed with varying milliampere, kilovolt, section thickness, pitch, and acquisition mode. Forty-two texture features were extracted by using an in-house-developed Matlab program. Two-tailed t tests and false-detection analyses were performed with significant differences in texture features based on detector array configurations (Q values = 0.001-0.006), section thickness (Q values = 0.0002-0.001), and acquisition mode (Q values = 0.003-0.006). Variations in milliampere and kilovolt had no significant effect.