Image reconstruction in 2D SPECT with 180 degrees acquisition

Authors
Noo, F Wagner, JM
Citation
F. Noo et Jm. Wagner, Image reconstruction in 2D SPECT with 180 degrees acquisition, INVERSE PR, 17(5), 2001, pp. 1357-1371
Citations number
26
Categorie Soggetti
Physics
Journal title
INVERSE PROBLEMS
ISSN journal
02665611 → ACNP
Volume
17
Issue
5
Year of publication
2001
Pages
1357 - 1371
Database
ISI
SICI code
0266-5611(200110)17:5<1357:IRI2SW>2.0.ZU;2-L
Abstract
This work concerns 2D SPECT imaging with uniform attenuation in the activit y region. In this paper, it is shown that exact and stable reconstruction d oes not require the data to be known over 360 degrees as has been previousl y assumed. An angular range of 180 degrees is sufficient in parallel-beam g eometry. A reconstruction formula which uses only data on a half-turn is pr ovided with implementation details. Simulations are performed to support th e mathematical result.