论文标题
电阻断层扫描和盒子限制的颅骨电导率估计
Electrical Impedance Tomography with Box Constraint for Skull Conductivity Estimation
论文作者
论文摘要
人体组织的不明电导率是医学工程中的常见问题。电阻抗断层扫描（EIT）是一种成像方式，可用于从边界测量中确定体内这些电导率。在本文中，我们证明了可以在盒子约束的帮助下从EIT测量中求解不同颅骨段的局部电导率值。基于我们的数值结果，结果的准确性取决于电流携带电极的位置以及测量值的信号噪声比。特别是，更准确地重建位于电流携带电极下方的颅骨段的电导率值。
Unknown electric conductivities of human tissues is a common issue in medical engineering. Electrical impedance tomography (EIT) is an imaging modality that can be used to determine these conductivities in vivo from boundary measurements. In this paper, we demonstrate that local conductivity values of different skull segments can be solved from EIT measurements with the help of a box constraint. Based on our numerical results, the accuracy of the results depended on the locations of the current carrying electrodes and the signal to noise ratio of the measurements. Particularly, the conductivity values of the skull segments that located below the current carrying electrodes were reconstructed more accurately.
