Analytical image reconstruction methods in emission tomography

On Reconstruction Methods and Image Quality in Emission Tomography

of the Dissertation On Reconstruction Methods and Image Quality in Emission Tomography

4D image reconstruction for emission tomography.

An overview of the theory of 4D image reconstruction for emission tomography is given along with a review of the current state of the art, covering both positron emission tomography and single photon emission computed tomography (SPECT). By viewing 4D image reconstruction as a matter of either linear or non-linear parameter estimation for a set of spatiotemporal functions chosen to approximatel...

Comparative study of 2D image reconstruction in X-Rays Tomography by analytical and iterative methods

Tomography is a technique for 2D and 3D image reconstruction of objects. It is based on taking projections according to several rotation angles of the object. These can be used to acquire information on the 3D volume of the object. In a great number of image reconstruction problems, an integral equation of the first kind (equation of convolution) has to be solved, which is an ill posed inverse ...

Respiratory Motion Correction in Emission Tomography Image Reconstruction

In Emission Tomography imaging, respiratory motion causes artifacts in lungs and cardiac reconstructed images, which lead to misinterpretations and imprecise diagnosis. Solutions like respiratory gating, correlated dynamic PET techniques, list-mode data based techniques and others have been tested with improvements over the spatial activity distribution in lungs lesions, but with the disadvanta...

Maximum Likelihood Algorithms for Image Reconstruction in Positron Emission Tomography