Three Dimensional (3-D) Reconstruction With Cone Beam Geometry Applied To Nuclear Medicine Imaging

Jiansheng Zheng; James A. Patton; David R. Pickens; Paul H. King; Ronald R. Price

doi:10.1117/12.956327

7 July 1986 Three Dimensional (3-D) Reconstruction With Cone Beam Geometry Applied To Nuclear Medicine Imaging

Jiansheng Zheng, James A. Patton, David R. Pickens, Paul H. King, Ronald R. Price

Proceedings Volume 0602, Biostereometrics '85; (1986) https://doi.org/10.1117/12.956327
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France

Abstract

A convolution-backprojection algorithm for fully 3-D reconstruction from cone beam projections was developed and implemented on an ADAC 3300 nuclear medicine computer system interfaced to a rotating scintillation camera with a pinhole collimator. As an approxima-tion, a space-invariant filter was applied to each projection independently before back-projection. The resolution of the system was found to be 7.8 mm at the center of field of view and 10.5 mm in the periphery, as opposed to 18 mm for a parallel hole, all purpose collimator. Results with phantom studies demonstrated that the technique provided images with improved spatial resolution.

Citation Download Citation

Jiansheng Zheng, James A. Patton, David R. Pickens, Paul H. King, and Ronald R. Price "Three Dimensional (3-D) Reconstruction With Cone Beam Geometry Applied To Nuclear Medicine Imaging", Proc. SPIE 0602, Biostereometrics '85, (7 July 1986); https://doi.org/10.1117/12.956327

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