33 search results - page 2 / 7 » pet 2004 |
ISBI
2004
IEEE
14 years 5 months ago
2004
IEEE
We have simulated 2D PET acquisitions of an anthropomorphic phantom with numerous spherical target lesions. The diameters of the lesions were varied from
ISBI
2004
IEEE
14 years 5 months ago
2004
IEEE
Quantification of receptor binding studies obtained with PET is complicated by tissue heterogeneity in the sampling image elements pixels and voxels. This effect is caused by a li...
ISBI
2004
IEEE
14 years 5 months ago
2004
IEEE
We present a fully four-dimensional, globally convergent, incremental gradient algorithm to estimate the continuous-time tracer density from list mode positron emission tomography...
TMI
2008
13 years 4 months ago
2008
Tomographic reconstruction from positron emission tomography (PET) data is an ill-posed problem that requires regularization. An attractive approach is to impose an 1-regularizatio...
ISBI
2004
IEEE
14 years 5 months ago
2004
IEEE
Abstract-In discrete detector PET, natural pixels are image basis functions calculated from responses of detector pairs. By using reconstruction with natural pixels the discretizat...