Incorporation of TV regularization in deconvolution for partial volume correction in PET imaging / 南方医科大学学报
Journal of Southern Medical University
;
(12): 474-480, 2015.
Article
Dans Chinois
| WPRIM
| ID: wpr-239153
ABSTRACT
We propose a method using total variation (TV) regularization in deconvolution for partial volume correction in PET imaging. In the degraded image model, we used TV regularization procedure in Van Cittert (VC) and Richardson-Lucy (RL) deconvolution algorithms. These methods were tested in simulated NCAT images and images of NEMA NU4-2008 IQ phantom and tumor-bearing mouse scanned by Simens Invoen microPET. The simulated experiment and tumor-bearing mouse experiment showed that the algorithms using TV regularization provided superior qualitative and quantitative appearance compared with traditional VC and RL algorithms. When the mean intensity of the tumor increased by (10±1.8)%, the SD increase percentage was decreased from 49.98% to 14.26% and from 42.76% to 4.70%, suggesting the efficiency of the proposed algorithms for reducing PVEs in PET.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Algorithmes
/
Traitement d'image par ordinateur
/
Fantômes en imagerie
/
Imagerie tridimensionnelle
/
Tomographie par émission de positons
Type d'étude:
Recherche qualitative
Limites du sujet:
Animaux
langue:
Chinois
Texte intégral:
Journal of Southern Medical University
Année:
2015
Type:
Article
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