Local cone-beam SPECT reconstruction with non-uniform attenuation

Yunbin Chen; Junhai Wen; Li Wang; Zhengrong Liang

doi:10.1117/12.811731

14 March 2009 Local cone-beam SPECT reconstruction with non-uniform attenuation

Yunbin Chen, Junhai Wen, Li Wang, Zhengrong Liang

Proceedings Volume 7258, Medical Imaging 2009: Physics of Medical Imaging; 72585E (2009) https://doi.org/10.1117/12.811731
Event: SPIE Medical Imaging, 2009, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

SPECT is one of the nuclear medicine imaging techniques and widely used in the clinical applications. Different from CT, SPECT achieved the functional image of the organ of interest, and the diseases can be found much earlier. Conebeam SPECT reconstruction can improve the photon density and spatial resolution of the reconstructed image, but it is time consuming. In clinic, doctors usually just care about the region of interest (ROI), such as heart, not whole body. Local reconstruction can reduce the reconstruction time. In this paper, based on Novikov's analytical SPECT reconstruction algorithm, we built a framework for local cone-beam SPECT reconstruction with non-uniform attenuation. The simulation results show our reconstruction framework is feasible.

Citation Download Citation

Yunbin Chen, Junhai Wen, Li Wang, and Zhengrong Liang "Local cone-beam SPECT reconstruction with non-uniform attenuation", Proc. SPIE 7258, Medical Imaging 2009: Physics of Medical Imaging, 72585E (14 March 2009); https://doi.org/10.1117/12.811731

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