用于三维旋转冠状动脉造影的心电图门控断层重建
ECG gated tomographic reconstruction for 3-D rotational coronary angiography.
作者信息
Hu Yining, Xie Lizhe, Nunes Jean Claude, Bellanger Jean Jacques, Bedossa Marc, Toumoulin Christine
机构信息
Laboratory of Image Science and Technology (LIST), South East University, C-210096 Nanjing, China.
出版信息
Annu Int Conf IEEE Eng Med Biol Soc. 2010;2010:3614-7. doi: 10.1109/IEMBS.2010.5627449.
Abstract
A method is proposed for 3-D reconstruction of coronary from a limited number of projections in rotational angiography. A Bayesian maximum a posteriori (MAP) estimation is applied with a Poisson distributed projection to reconstruct the 3D coronary tree at a given instant of the cardiac cycle. Several regularizers are investigated L0-norm, L1 and L2 -norm in order to take into account the sparsity of the data. Evaluations are reported on simulated data obtained from a 3D dynamic sequence acquired on a 64-slice GE LightSpeed CT scan. A performance study is conducted to evaluate the quality of the reconstruction of the structures.
摘要
提出了一种在旋转血管造影中从有限数量的投影进行冠状动脉三维重建的方法。应用贝叶斯最大后验（MAP）估计和泊松分布投影来在心动周期的给定时刻重建三维冠状动脉树。研究了几种正则化器，即L0范数、L1范数和L2范数，以考虑数据的稀疏性。报告了对从64层GE LightSpeed CT扫描获取的三维动态序列得到的模拟数据的评估。进行了一项性能研究以评估结构重建的质量。
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