Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Power Absorption Measurements During NMR Experiments
Year:2013
Research Areas
  • Engineering
Information
Abstract
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
International
Si
JCR
Si
Title
Journal of Magnetics
ISBN
1226-1750
Impact factor JCR
0,326
Impact info
Datos JCR del año 2012
Volume
19
10.4283/JMAG.2014.19.1.XXX
Journal number
1
From page
1
To page
6
Month
JUNIO
Ranking
Participants
  • 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)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Tecnología Electrónica
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)