Local SPECT Reconstruction with Non-uniform Attenuation
SPECT (single photon emission computed tomography) is a tomography technique that can greatly show information about the metabolic activity and improve clinical diagnosis. In 2000, R. Novikov discovered the explicit SPECT reconstruction formula with non-uniform attenuation. Based on R. Novikovs reconstruction formula, we had derived a wavelet based SPECT reconstruction algorithm. Like the conventional CT reconstruction algorithm, these algorithms require full projection data in order to reconstruct the image even though reconstruction area is a small part of the body. In this paper, we present a wavelet based local SPECT reconstruction algorithm with non-uniform attenuation, which only need the local projection data from the region of interest (ROI), this means smaller detector required and reconstruction time would become shorter.
SPECT local reconstruction wavelet non-uniform attenuation
Bing Liu Junhai Wen Xin Li Xu Meng
Department of Biomedical Engineering, School of Life Science & Technology, Beijing Institute of Technology, Beijing, 100081, China
国际会议
上海
英文
2608-2611
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）