Title :
Quasi pseudo-inverse reconstruction for rotating PET scanners
Author :
Sánchez-González, Javier ; Espana, Samuel ; Abella, Mónica ; Vaquero, Juan José ; Lage, Eduardo ; Pascau, Javier ; Desco, Manuel
Author_Institution :
Unidad de Medicina y Cirugia Exp., Hospital GU Gregorio Maranon, Madrid
Abstract :
A new reconstruction strategy is proposed for 3D images acquired with rotating PET scanners. This method is based on the decomposition of the system response matrix (SRM) into a projection and a rotation components that are inverted independently. We present the rationale of the new reconstruction procedure as well as some examples to compare with analytical 3D reconstruction (3DRP) and 3D statistical reconstruction (3D-OSEM)
Keywords :
expectation-maximisation algorithm; image reconstruction; medical image processing; positron emission tomography; 3D statistical reconstruction; 3D-OSEM; analytical 3D reconstruction; quasi pseudoinverse reconstruction; rotating PET scanners; system response matrix; Animals; Biomedical imaging; Detectors; Event detection; Hospitals; Image reconstruction; Independent component analysis; Matrix decomposition; Pixel; Positron emission tomography;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2005 IEEE
Conference_Location :
Fajardo
Print_ISBN :
0-7803-9221-3
DOI :
10.1109/NSSMIC.2005.1596894
