title: Time sequence image analysis of positron  emission tomography using wavelet  transformation.
abstract: This paper presents the time sequence image analysis technique of positron emission tomography (PET) using a wavelet transformation method. The abdominal cavity of a person taking [18F]Fluoro-2-deoxy-2-D-glucose (18F-FDG) was scanned by the dynamic PET. The organ selection with dynamic PET images was conducted by the wavelet transformation to implement automatic selection of the region of interest (ROI). The image segmentation was carried out by the processes of sampling, wavelet transformation, erosion, dilation, and superimposition. Wavelet constructed image (WCI) contours were created by sampling 512 images from 1960 consecutive dynamic sequence PET images. The image segmentation technology developed can help doctors automatically select ROI, accurately identify lesion locations of organs, and thus effectively reduce human operation time and errors.
authors.affiliation: Department of Information and Communication Engineering, Chaoyang University of Technology, Taichung, Taiwan
authors.forename: Chih-Yu
authors.initials: CY
authors.lastname: Hsu
authors.forename: Yeong-Lin
authors.initials: YL
authors.lastname: Lai
authors.forename: Chih-Cheng
authors.initials: CC
authors.lastname: Chen
authors.forename: Yu-Tzu
authors.initials: YT
authors.lastname: Lee
authors.forename: Kuo-Kun
authors.initials: KK
authors.lastname: Tseng
authors.forename: Yeong-Kang
authors.initials: YK
authors.lastname: Lai
authors.forename: Chun-Yi
authors.initials: CY
authors.lastname: Zheng
authors.forename: Huai-Cian
authors.initials: HC
authors.lastname: Jheng
mesh_terms: D000005:Abdomen; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D049268:Positron-Emission Tomography / Q000379:methods*; D058067:Wavelet Analysis
chemical_list: D019788:Fluorodeoxyglucose F18