An Inverse Problem Approach to the Estimation of Volume Change
An Inverse Problem Approach to the Estimation of Volume Change
复制标题
体积变化估计的反问题方法
DOI:
10.1007/11566489_76
复制
发表时间:
2005
期刊:
影响因子:
--
通讯作者:
Nick C Fox
中科院分区:
文献类型:
--
作者:
M. Schweiger;Oscar Camara;W. Crum;E. Lewis;J. Schnabel;S. Arridge;D. Hill;Nick C Fox
We present a new technique for determining structure-by-structure volume changes, using an inverse problem approach. Given a pre-labelled brain and a series of images at different time-points, we generate finite element meshes from the image data, with volume change modelled by means of an unknown coefficient of expansion on a per-structure basis. We can then determine the volume change in each structure of interest using inverse problem optimization techniques. The proposed method has been tested with simulated and clinical data. Results suggest that the presented technique can be seen as an alternative for volume change estimation.