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Signal modeling of an MRI ribbon solenoid coil dedicated to spinal cord injury investigations
- Source :
- Journal of Sensors and Sensor Systems, Journal of Sensors and Sensor Systems, Copernicus Publ, 2016, 5 (1), pp.137-145. ⟨10.5194/jsss-5-137-2016⟩, Journal of Sensors and Sensor Systems, 2016, 5, pp.137-145. ⟨10.5194/jsss-5-137-2016⟩, Journal of Sensors and Sensor Systems, Vol 5, Iss 1, Pp 137-145 (2016), Journal of Sensors and Sensor Systems, Copernicus GmbH, 2016, 5, pp.137-145. ⟨10.5194/jsss-5-137-2016⟩
- Publication Year :
- 2018
-
Abstract
- Nuclear magnetic resonance imaging (NMRI) is a powerful tool for biological investigations. Nevertheless, the imaging resolution performance results in the combination of the magnetic field (B0) and the antenna efficiency. This latter one results in a compromise between the size of the sample, the location of the region of interest and the homogeneity requirement. In the context of spinal cord imaging on mice, a ribbon solenoid coil is used to enhance the efficiency of the MRI experiment. This paper details the calculation of the local magnetization contribution to the induced voltage of MRI coils. The modeling is illustrated on ribbon solenoid antennas used in emitter–receiver mode for the study. The analytical model, which takes into account the emitting mode, the receiving step and the imaging sequence, is compared to the measurement performed on a 9.4 T VARIAN MRI apparatus. The efficiency of the antenna, in terms of signal to noise ratio, is significantly enhanced with respect to a commercial quadrature volumic antenna, given a significant advantage for the study of spinal cord injuries.
- Subjects :
- Materials science
[PHYS.PHYS.PHYS-BIO-PH]Physics [physics]/Physics [physics]/Biological Physics [physics.bio-ph]
Physics::Medical Physics
Solenoid
Coil
lcsh:Technology
030218 nuclear medicine & medical imaging
03 medical and health sciences
Magnetization
0302 clinical medicine
Nuclear magnetic resonance
Region of interest
Ribbon
medicine
Electrical and Electronic Engineering
induction sensor
Instrumentation
Spinal cord injury
lcsh:T
[SCCO.NEUR]Cognitive science/Neuroscience
[SCCO.NEUR] Cognitive science/Neuroscience
medicine.disease
[SPI.TRON] Engineering Sciences [physics]/Electronics
[SPI.TRON]Engineering Sciences [physics]/Electronics
Antenna efficiency
Magnetic field
Electromagnetic coil
030217 neurology & neurosurgery
MRI
Biomedical engineering
Subjects
Details
- Language :
- English
- ISSN :
- 2194878X and 21948771
- Database :
- OpenAIRE
- Journal :
- Journal of Sensors and Sensor Systems, Journal of Sensors and Sensor Systems, Copernicus Publ, 2016, 5 (1), pp.137-145. ⟨10.5194/jsss-5-137-2016⟩, Journal of Sensors and Sensor Systems, 2016, 5, pp.137-145. ⟨10.5194/jsss-5-137-2016⟩, Journal of Sensors and Sensor Systems, Vol 5, Iss 1, Pp 137-145 (2016), Journal of Sensors and Sensor Systems, Copernicus GmbH, 2016, 5, pp.137-145. ⟨10.5194/jsss-5-137-2016⟩
- Accession number :
- edsair.doi.dedup.....8f1062f187f945201cd31e4820dd8ea8