Title :
Three-dimensional image reconstruction in object space
Author :
Kinahan, Paul E. ; Rogers, Joel G. ; Harrop, Ronald ; Johnson, Richard R.
Author_Institution :
TRIUMF, Vancouver, BC, Canada
Abstract :
An analytic three-dimensional image-reconstruction algorithm that can utilize the cross-plane gamma rays detected by a wide solid-angle PET (positron-emission tomography) system is presented. Unlike current analytic algorithms, it does not use Fourier transform methods, although mathematical equivalence to Fourier transform methods is proved. The results of implementing the algorithm are briefly discussed. An extension of the algorithm to utilize all measured cross-plane gamma rays is discussed.<>
Keywords :
computerised tomography; radioisotope scanning and imaging; cross-plane gamma rays; object space; positron-emission tomography; three-dimensional image-reconstruction; wide solid-angle PET; Algorithm design and analysis; Convolution; Discrete Fourier transforms; Filtering; Filters; Fourier transforms; Gamma rays; Image analysis; Image reconstruction; Positron emission tomography;
Journal_Title :
Nuclear Science, IEEE Transactions on
