基于真实人体边界模型的电阻抗断层成像研究

对真实人体边界模型的电阻抗断层成像进行实现,研究其成像特点。提取CT(computerized tomography)图片中先验信息,得到基于真实人体轮廓外形的模型,利用等位线反投影算法进行仿真研究。结果表明:可以较好地反映多种不同扰动的变化,具有一定程度的目标分辨率和识别率,并可以对扰动目标实现较好的定位。说明基于真实人体边界模型的电阻抗断层成像实现是可行的,结果是可靠的,这种重构模型使得重构结果更趋近于真实人体情况,为临床研究做出初步尝试。

The Study of Electrical Impedance Tomography based on Realistic Contour Model of Human Body

To made the electrical impedance tomography(EIT) imaging come true based on realistic human body contour model and studied the features of these images.We got the realistic contour model of human body from the prior information of CT(computerized tomography).Back-projection algorithm was used in simulation research.Result showed that difference disturbance change could be shown and the resolving power was fine at some extents.The disturbance object could also be good located.It is feasible and reliable of the results in electrical impedance tomography(EIT) imaging based on realistic human body contour model.This model is very close to realistic information of human body.And this preliminary research can lead the way of electrical impedance tomography(EIT) to clinical use.