Automatic Localization of AC and PC Landmarks in T2-weighted MR Volumetric Neuroimages

摘要：

A novel method is presented for automatic identification of the anterior commissure (AC) and posterior commissure (PC) in T2-weighted MR volumetric images (MRI). AC and PC are two critical landmarks of human brain. It is important to accurately identify them for brain segmentation, registration, functional neurosurgery, human brain mapping, and particularly for the Talairach transformation. The algorithm of identifying them consists of four steps: (1) Identify the corpus callosum and select the region of interest; (2) Identify the fornix and locate the initial AC; (3) Segment part of the third ventricle and locate the initial PC; (4) Refine the positions of AC and PC. The algorithm has been validated quantitatively with 20 T2-weighted MRI data sets. The mean errors of the localization of them were 1.50 mm (AC) and 1.60 mm (PC). It took about 15 seconds for identifying them on P4 3.0 GHz. This fully automatic algorithm is potentially useful in clinic and for research.

关键词： Anterior commissure Posterior commissure Midsagittal plane Corpus callosum Fornix Third ventricl

作者: Guangcai Zhang Yili Fu Shuguo Wang Wenpeng Gao

作者单位: State Key Laboratory of Robotics and System Harbin Institute of TechnologyHarbin,Heilongjiang,Provin State Key Laboratory of Robotics and System Harbin Institute of Technology Harbin,Heilongjiang,Provi

会议类型: 国际会议

会议名称: 2010 IEEE信息与自动化国际会议(ICIA 2010)

会议地点: 哈尔滨

会议语种:英文

页码: 1-5

在线出版日期: 2010-06-20（万方平台首次上网日期，不代表论文的发表时间）