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Memorias de investigación
Artículos en revistas:
Power Absorption Measurements During NMR Experiments
Año:2013
Áreas de investigación
  • Ingenierías
Datos
Descripción
The heating produced by the absorption of radiofrequency (RF) has been considered a secondary undesirable effect during MRI procedures. In this work, we have measured the power absorbed by distilled water, glycerol and egg-albumin during NMR and non-NMR experiments. The samples are dielectric and examples of different biological materials. The samples were irradiated using the same RF pulse sequence, whilst the magnetic field strength was the variable to be changed in the experiments. The measurements show a smooth increase of the thermal power as the magnetic field grows due to the magnetoresistive effect in the copper antenna, a coil around the probe, which is directly heating the sample. However, in the cases when the magnetic field was the adequate for the NMR to take place, some anomalies in the expected thermal powers were observed: the thermal power was higher in the cases of water and glycerol, and lower in the case of albumin. An ANOVA test demonstrated that the observed differences between the measured power and the expected power are significant
Internacional
Si
JCR del ISI
Si
Título de la revista
Journal of Magnetics
ISSN
1226-1750
Factor de impacto JCR
0,326
Información de impacto
Datos JCR del año 2012
Volumen
19
DOI
10.4283/JMAG.2014.19.1.XXX
Número de revista
1
Desde la página
1
Hasta la página
6
Mes
JUNIO
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Participantes
  • Autor: Nazario Félix González (UPM)
  • Autor: Ana Lorena Urbano Bojorge (UPM)
  • Autor: Cristina Sanchez Lopez de Pablo (UPM)
  • Autor: Vicente Ferro Llanos (UPM)
  • Autor: Jose Javier Serrano Olmedo (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Departamento: Tecnología Electrónica
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