A brain phantom for studying contrast recovery in emission computerized tomography.
A brain phantom is described that is characterized by a high anatomical definition and by the possibility of varying the internal contrast with the use of a single radioactive solution. The experimental work was done with a single-photon emission computerized tomographic (SPET) rotating camera. The phantom was used to study the contrast recovery of both the filtered back-projection and an iterative reconstruction algorithm. Moreover, it was also used to find a cross-calibration factor between activity concentrations in the SPET slices and an external reference.
Pupi
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A
Dipartimento di Fisiopatologia Clinica, Università di Firenze, Italy.
De Cristofaro
M T
MT
Formiconi
A R
AR
Passeri
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A
Speranzi
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A
Giraudo
E
E
Meldolesi
U
U
D000465:Algorithms; D001921:Brain / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008961:Models, Structural; D015899:Tomography, Emission-Computed, Single-Photon