A comparison between the surface-based and mutual-information-based methods for co-registering SPECT and MR images

Yuan Lin Liao, Yung Nien Sun, Wan Yuo Guo, Yuan Hwa Chou, Jen Chuen Hsieh, Yu Te Wu*

*此作品的通信作者

研究成果: Conference contribution同行評審

4 引文 斯高帕斯(Scopus)

摘要

Single photon emission computed tomography (SPECT) and magnetic resonance (MR) images are two common modalities in brain imaging society. Co-registration of brain SPECT and MR images has been used extensively in a number of clinical applications. The surface-based method and the mutual-information-based method are two major co-registration methods. The former aligns two volumetric images based on the cost function derived from brain surfaces, whereas the latter matches two volumetric images based on maximizing the mutual information (MI) between intensities of two images. To the best of our knowledge, these two methods have neither been compared, nor conjointly used to register the brain SPECT and MR images. Simulation results show that the surface-based method is more robust to the large deviation of initial guesses and computationally efficient, while the MI-based method provides better precision. The complementary features of these two methods motivated us to propose a hybrid strategy in which the surface-based method is employed to rapidly achieve a rough alignment followed by the MI-based method for fine tuning the results. Results from simulations suggested that only two iterations of MI calculation were required after surface-based registration and thereby lots of computation efforts can be saved.

原文English
主出版物標題29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
頁面868-871
頁數4
DOIs
出版狀態Published - 2007
事件29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07 - Lyon, France
持續時間: 23 8月 200726 8月 2007

出版系列

名字Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
ISSN(列印)0589-1019

Conference

Conference29th Annual International Conference of IEEE-EMBS, Engineering in Medicine and Biology Society, EMBC'07
國家/地區France
城市Lyon
期間23/08/0726/08/07

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