摘要
针对结肠空腔结构的电场线虚拟外翻运行速度慢的问题,我们提出了一种对结肠数据进行快速虚拟外翻的方法。此法采用了垂直截面和电场线曲截面结合的横截面代替了电场线虚拟外翻方法的完全由电场线形成的横截面。对一组病人的结肠CT数据进行了上述两种方法的外翻比较,结果表明在图像质量基本相同的情况下,快速外翻方法的运行时间约为电场线虚拟外翻运行时间的1/6。
As the existing electrical field method for colon hollow structure virtual eversion is time consuming,a new faster method is presented here to overcome this disadvantage.In the new method,the cross section we used is composed of an orthogonal section and an electrical field section rather than the electrical field section only.We have applied this new method to a series of CT data of a patient for virtual eversion.The result shows that the time cost by using the fast method is only about 1/6 of the existing...
出处
《中国医疗器械杂志》
CAS
2008年第6期394-397,共4页
Chinese Journal of Medical Instrumentation
基金
国家高技术研究计划(863)资助(2007AA02Z452)
关键词
结肠
中心路径
基准面
电场线
虚拟外翻
colon
centerline
base-level
electric line
virtual eversion
