HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Budinger, T. F. Articles by Macdonald, B. Search for Related Content PubMed PubMed Citation Articles by Budinger, T. F. Articles by Macdonald, B.

Reconstruction of the Fresnel-Coded Gamma Camera Images by Digital Computer

Donner Laboratory and Lawrence Berkeley Laboratory, University of California, Berkeley, California

Correspondence: For reprints contact: Thomas F. Budinger, Lawrence Berkeley Laboratory, Berkeley, Calif. 94720.

ABSTRACT

An algorithm for the digital reconstruction of the Fresnel-coded gamma camera image consists of the spatial Fourier transform of the hologram after applying a quadratic phase shift. Background subtraction is implemented by use of positive and negative zone plates. Tomographic planes are reconstructed in 27 sec from a single zone-plate shadow image by successively varying a parameter in the reconstruction algorithm on a small computer system.