[An iterative strategy for determining the source distribution in single photon tomography using a rotating gamma camera (SPECT)].
A new iterative strategy for determination of the source distribution in single-photon emission tomography (SPECT) simulates mathematically the scintigraphic imaging process during direction sum computation. Limited spatial resolution and gamma-ray attenuation are taken into account using simplifying approximations. Highly resolved low-noise tomograms without obvious artifacts are obtained. Results of phantom measurements as well as cases of thyroid and brain perfusion imaging are presented to demonstrate the capabilities of the method.
Luig
H
H
Zentrum Radiologie, Universität Göttingen, BRD.
Eschner
W
W
Bähre
M
M
Voth
E
E
Nolte
G
G
D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging; D006044:Goiter, Nodular / Q000000981:diagnostic imaging; D006801:Humans; D008961:Models, Structural; D014055:Tomography, Emission-Computed / Q000379:methods*
Eine iterative Strategie zur Bestimmung der Quellverteilung bei der Einzelphotonen-Tomographie mit einer rotierenden Gammakamera (SPECT).