Title :
Focal-Plane Tomography Image Reconstruction
Author :
Pickens, D.R. ; Price, R.R. ; Patton, J.A. ; Erickson, J.J. ; Rollo, F.D. ; Brill, A.B.
Author_Institution :
Vanderbilt University Medical Center, Nashville, TN 37232
Abstract :
Two different tomographic scanning instruments have been interfaced to a digital computer. Digital backprojection is used to produce multiple tomographic images of radioactive distributions. Backprojection results in blur artifacts due to off-plane contributions which obscures the detail in images. The method of Chang, Macdonald, and Perez-Mendez has been applied to phantom data from both instruments, resulting in substantial blur removal and improved signal-to-noise ratios. Clinical images derived from digital back-projection of data from the Searle PHO/CON-192 Multiplane Imager are presented and compared with images from the Searle Microdot imager.
Keywords :
Biomedical imaging; Computer interfaces; Deconvolution; Filtering; Frequency; Image reconstruction; Instruments; Medical diagnostic imaging; Signal to noise ratio; Tomography;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1980.4330874
