A Modified Water Fat Separation Algorithm Based on Region Growing

Author

Tian, Hongjun ; Chen, Siping ; Wang, Tianfu ; Dan, Guo ; Diao, Xianfen ; Zheng, Chongxun

Author_Institution

Key Lab. of Biomed. Inf. Eng. of Educ. Minist., Xi´´an Jiaotong Univ., Xi´´an, China

fYear

2009

fDate

11-13 June 2009

Firstpage

1

Lastpage

3

Abstract

An efficient algorithm for water fat separation on low field MRI is presented in this paper. Based on the DIXON algorithm, in phase and opposed phase images are acquired by spin echo (SE) sequence. From these images the water only and fat only images can be extracted by the chemical shift principle .The algorithm is region growing based. The modification is proposed on how to process background noises. The pixels of background noises are push into an additional stack which has the lowest priority so as to get a more robust performance. Experiments on low field system show good results.

Keywords

biological tissues; biomedical MRI; chemical shift; feature extraction; image segmentation; medical image processing; DIXON algorithm; background noise process; chemical shift principle; human tissue; image extraction; low-field MRI; phase image; region growing; spin echo sequence; water fat separation algorithm; Background noise; Biomedical engineering; Chemicals; Difference equations; Humans; Laboratories; Magnetic fields; Magnetic resonance imaging; Noise robustness; Resonant frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2901-1

Electronic_ISBN

978-1-4244-2902-8

Type

conf

DOI

10.1109/ICBBE.2009.5162188

Filename

5162188