Title :
Rebinning Methods for Cone Beam SPECT Reconstruction with Non-Uniform Attenuation
Author :
Chen, Yunbin ; Wen, Junhai ; Wang, Li ; Hu, Peng ; Zhang, Hao
Author_Institution :
Dept. of Biomed. Eng., Beijing Inst. of Technol., Beijing, China
Abstract :
Single photon emission computed tomography (SPECT) could achieve the functional image of the organ of interest, so the diseases can be found much earlier. Cone-beam SPECT reconstruction can improve the photo density and spatial resolution of the reconstructed image. A simple method for cone beam reconstruction is to rebin the cone-beam projection data into 2D sinograms and use 2D reconstruction method to obtain the 3D reconstructed images. In this paper, we proposed two rebinning methods for cone-beam SPECT reconstruction with non-uniform attenuation, these two algorithms both can obtain good reconstruction results, especially when reconstructed slice is close to the mid-plane.
Keywords :
image reconstruction; medical image processing; single photon emission computed tomography; 2D reconstruction method; 2D sinograms; 3D reconstructed images; cone beam SPECT reconstruction; nonuniform attenuation; rebinning methods; single photon emission computed tomography; Attenuation; Biomedical engineering; Diseases; Image reconstruction; Photonics; Reconstruction algorithms; Single photon emission computed tomography; Spatial resolution; X-ray detection; X-ray detectors;
Conference_Titel :
Biomedical Engineering and Informatics, 2009. BMEI '09. 2nd International Conference on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4132-7
Electronic_ISBN :
978-1-4244-4134-1
DOI :
10.1109/BMEI.2009.5305112