Iterative Principal Axes Registration method for analysis of MR-PET brain images.
IEEE Trans Biomed Eng
; 42(11): 1079-87, 1995 Nov.
Article
en En
| MEDLINE
| ID: mdl-7498911
ABSTRACT
Computerized automatic registration of MR-PET images of the brain is of significant interest for multimodality brain image analysis. In this paper, we discuss the Principal Axes Transformation for registration of three-dimensional MR and PET images. A new brain phantom designed to test MR-PET registration accuracy determines that the Principal Axes Registration method is accurate to within an average of 1.37 mm with a standard deviation of 0.78 mm. Often the PET scans are not complete in the sense that the PET volume does not match the respective MR volume. We have developed an Iterative Principal Axes Registration (IPAR) algorithm for such cases. Partial volumes of PET can be accurately registered to the complete MR volume using the new iterative algorithm. The quantitative and qualitative analyses of MR-PET image registration are presented and discussed. Results show that the new Principal Axes Registration algorithm is accurate and practical in MR-PET correlation studies.
Buscar en Google
Base de datos:
MEDLINE
Asunto principal:
Algoritmos
/
Procesamiento de Imagen Asistido por Computador
/
Encéfalo
/
Mapeo Encefálico
/
Imagen por Resonancia Magnética
/
Tomografía Computarizada de Emisión
Tipo de estudio:
Qualitative_research
Idioma:
En
Revista:
IEEE Trans Biomed Eng
Año:
1995
Tipo del documento:
Article