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
in Chinese
| 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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Algorithms
/
Image Processing, Computer-Assisted
/
Phantoms, Imaging
/
Imaging, Three-Dimensional
/
Positron-Emission Tomography
Type of study:
Qualitative research
Limits:
Animals
Language:
Chinese
Journal:
Journal of Southern Medical University
Year:
2015
Type:
Article
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