Abdominal atlas mapping in CT and MR volume images using a normalized abdominal coordinate system

作者：Wang Hongkai; Bai Jing^*; Zhou Yongxin; Zhang Yonghong

来源：Computerized Medical Imaging and Graphics, 2008, 32(6): 442-451.

DOI：10.1016/j.compmedimag.2008.04.004

• body-based coordinate system
• atlas-mapping
• registration
• organ segmentation
• medical imaging

In this paper, a normalized abdominal coordinate system is defined tor abdominal atlas mapping in CT and MR volume images. This coordinate system is independent of both the abdomen size and the respiratory motion. A real-time atlas mapping algorithm based oil this coordinate system is also proposed. The purpose of this algorithm is to provide initial positions for abdominal or-an segmentation. This algorithm reckons in the respiration phase and the fat amount to compensate organ translations. With this algorithm, rough positions of the target organs are found rapidly, and accurate segmentation results are obtained based on the mapping results.

• 出版日期2008-9
• 单位清华大学