Investigation and demonstration of a technique in CT image reconstruction for use with truncated data
作者： Damien Farrell
DOI:
关键词:
摘要: One area of interest in image reconstruction for Computed Tomography or Emission are algorithms with limited data. Truncating the scan beam to a narrow field view that does not cover entire object creates possibility dose reduction. In this thesis, simple data completion technique correcting truncated is investigated. The proposed has been implemented custom software by use simplified simulation and results given. Comparison other methods an application CT fluoroscopy also discussed.
researchgate.net 参考文章(37)
John Nuyts, Bruno De Man, Patrick Dupont, Michel Defrise, Paul Suetens, Luc Mortelmans, Iterative reconstruction for helical CT: a simulation study Physics in Medicine and Biology. ,vol. 43, pp. 729- 737 ,(1998) , 10.1088/0031-9155/43/4/003
B. Ohnesorge, T. Flohr, K. Schwarz, J. P. Heiken, K. T. Bae, Efficient correction for CT image artifacts caused by objects extending outside the scan field of view. Medical Physics. ,vol. 27, pp. 39- 46 ,(2000) , 10.1118/1.598855
Gabor T. Herman, Abraham Naparstek, Fast Image Reconstruction Based on a Radon Inversion Formula Appropriate for Rapidly Collected Data SIAM Journal on Applied Mathematics. ,vol. 33, pp. 511- 533 ,(1977) , 10.1137/0133033
R. N. Bracewell, A. C. Riddle, Inversion of Fan-Beam Scans in Radio Astronomy The Astrophysical Journal. ,vol. 150, pp. 427- ,(1967) , 10.1086/149346
Xiaochuan Pan, Fast reconstruction with uniform noise properties in halfscan computed tomography. Medical Physics. ,vol. 27, pp. 2031- 2036 ,(2000) , 10.1118/1.1288239
T. M. Peters, R. M. Lewitt, Computed tomography with fan beam geometry. Journal of Computer Assisted Tomography. ,vol. 1, pp. 429- 436 ,(1977) , 10.1097/00004728-197710000-00008
J. Hsieh, E. Chao, J. Thibault, B. Grekowicz, A. Horst, S. McOlash, T. J. Myers, A novel reconstruction algorithm to extend the CT scan field-of-view. Medical Physics. ,vol. 31, pp. 2385- 2391 ,(2004) , 10.1118/1.1776673
G. N. Ramachandran, A. V. Lakshminarayanan, Three-dimensional Reconstruction from Radiographs and Electron Micrographs: Application of Convolutions instead of Fourier Transforms Proceedings of the National Academy of Sciences of the United States of America. ,vol. 68, pp. 2236- 2240 ,(1971) , 10.1073/PNAS.68.9.2236
E L Nickoloff, Measurement of the PSF for a CT scanner: appropriate wire diameter and pixel size Physics in Medicine and Biology. ,vol. 33, pp. 149- 155 ,(1988) , 10.1088/0031-9155/33/1/014
Naoshi Baba, Kazumi Murata, Filtering for image reconstruction from projections Journal of the Optical Society of America. ,vol. 67, pp. 662- 668 ,(1977) , 10.1364/JOSA.67.000662