Analytical Cone Beam SPECT Reconstruction with Non-uniform Attenuation
Single photon emission computed tomography (SPECT) is one of the nuclear medical imaging techniques and widely used in the clinical applications. Cone-beam SPECT reconstruction can improve the photo density and spatial resolution of the reconstructed image. In this paper, based on our analytical fan-beam SPECT reconstruction formula with nonuniform attenuation and Feldkamp method, we present an analytical cone-beam SPECT reconstruction algorithm for the non-uniform attenuated Radon transform. The computer simulation experiments had demonstrated its accuracy and robustness.
SPECT cone-beam Feldkamp algorithm ray-driven non-uniform attenuation
Junhai Wen Yunbin Chen Li Wang
Department of Biomedical Engineering,School of Life Science & Technology,Beijing Institute of Technology,Beijing,100081,China
国际会议
北京
英文
1-4
2009-06-11(万方平台首次上网日期,不代表论文的发表时间)