A simplified approach for computed tomography with an X-ray grating interferometer.
Opt Express
; 19(3): 1691-8, 2011 Jan 31.
Article
en En
| MEDLINE
| ID: mdl-21368982
ABSTRACT
We present a simplified acquisition and processing method for X-ray grating interferometry computed tomography (CT). The proposed approach eliminates the need to scan the gratings, thus allowing for a faster CT acquisition compared to methods presently in use. The contrast in the reconstructed images can be expressed as a linear combination of the absorption and refraction within the sample. Experimental images of a test phantom made of known materials and a human bone-cartilage sample prove the correctness of the method and show very good agreement with the theory. The here proposed approach might be highly interesting in many fields where a reduced imaging acquisition time is requested and/or where the radiation dose delivered to the sample has to be kept low, such as, for example, in in-vivo imaging.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Difracción de Rayos X
/
Intensificación de Imagen Radiográfica
/
Tomografía Computarizada por Rayos X
/
Interferometría
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
Idioma:
En
Revista:
Opt Express
Asunto de la revista:
OFTALMOLOGIA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Francia