Abstract:This paper proposed a registration algorithm for thoracic and abdominal PET/CT images from the perspectives of multi-transformation and multi-optimization policies in order to correct the image deformation and registration error caused by respiratory motion. Then a registration system for PET/CT images with good interactivity and user-friendly interface was designed and implemented based on ITK (Insight Segmentation and Registration Toolkit), VTK (Visualization Toolkit) and QT. Experimental results showed that the elastic registration algorithm proposed in this paper can correct the image deformation and registration error and had great advantages in its accuracy over other algorithms that used single transformation and optimization.
吴薇薇,孙蒙蒙,吴水才. PET/CT胸腹部图像配准算法及系统设计[J]. 中国医疗设备, 2015, 30(2): 21-24.
WU Wei-wei, SUN Meng-meng, WU Shui-cai. Design of A Registration Algorithm and System for Thoracic and Abdominal PET/CT Images. China Medical Devices, 2015, 30(2): 21-24.
Mattes D,Haynor DR,Vesselle H,et al.PET-CT image registration in the chest using free-form deformations[J].IEEE Transactions on Medical Imaging,2003,22(1):120-128.