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.
Artículo
en Chino
| WPRIM (Pacífico Occidental)
| ID: wpr-239153
Biblioteca responsable:
WPRO
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.
Texto completo:
Disponible
Base de datos:
WPRIM (Pacífico Occidental)
Asunto principal:
Algoritmos
/
Procesamiento de Imagen Asistido por Computador
/
Fantasmas de Imagen
/
Imagenología Tridimensional
/
Tomografía de Emisión de Positrones
Tipo de estudio:
Investigación cualitativa
Límite:
Animales
Idioma:
Chino
Revista:
Journal of Southern Medical University
Año:
2015
Tipo del documento:
Artículo