A controllably anisotropic conductivity or diffusion phantom constructed from isotropic layers.
Ann Biomed Eng
; 37(12): 2522-31, 2009 Dec.
Article
en En
| MEDLINE
| ID: mdl-19760146
Phantoms with controllable and well-defined anisotropy are needed to test methods for imaging electrical anisotropy. We developed and tested a phantom that had properties similar to a homogeneous anisotropic conductive medium. The phantom was constructed with alternate slices of isotropic gel having different conductivities. The degree of anisotropy in the phantom could be varied easily by changing the relative conductivity of the two gels. We tested the stability of several phantoms and found their properties were maintained for approximately 8 h following construction. The phantom has application to electrical impedance tomography, magnetic resonance electrical impedance tomography, EEG and ECG source imaging and diffusion tensor imaging.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Pletismografía de Impedancia
/
Diagnóstico por Imagen
/
Fantasmas de Imagen
/
Geles
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
Idioma:
En
Revista:
Ann Biomed Eng
Año:
2009
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos