Artículo
Desktop MRI as a promising tool for mapping intra-aneurismal flow
Perlo, Josefina
; Silletta, Emilia Victoria
; Danieli, Ernesto Pablo
; Cattaneo, Giorgio; Acosta, Rodolfo Héctor
; Blümich, Bernhard; Casanova, Federico Martin
Fecha de publicación:
04/2015
Editorial:
Elsevier Science Inc
Revista:
Magnetic Resonance Imaging
ISSN:
0730-725X
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this work we evaluate the performance of a 40-mm diameter bore 0.2T desktop Halbach tomograph to obtain 2D and 3D velocity maps for studying intra-aneurismal flow in the presence or absence of nitinol meshed implants with the aim of optimizing the flow diverter efficacy. Phantoms with known spatial velocity distribution were used to determine the performance of the MRI system. Maximum velocities of about 200mm/s could be measured with a precision of 1% at a spatial resolution of 0.5×0.5×1mm3. This accuracy is suitable to evaluate in vitro intra-aneurismal flow under different conditions such as variable flow rates, different vessel-aneurysm geometry, as well as the influence of metallic flow diverters on the intra-aneurismal flow distribution. The information obtained non-invasively with desktop tomographs can be used to complement in vivo studies in order to decide the optimum flow diverter.
Palabras clave:
Aneurysm
,
Compact Mri
,
Flow
,
Flow Diverter
,
Metallic Stent
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IFEG)
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Articulos de INST.DE FISICA ENRIQUE GAVIOLA
Citación
Perlo, Josefina; Silletta, Emilia Victoria; Danieli, Ernesto Pablo; Cattaneo, Giorgio; Acosta, Rodolfo Héctor; et al.; Desktop MRI as a promising tool for mapping intra-aneurismal flow; Elsevier Science Inc; Magnetic Resonance Imaging; 33; 3; 4-2015; 328-335
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