Reciprocity and sensitivity of opposed-solenoid endovascular MRI probes

Details

Serval ID
serval:BIB_186339042861
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Reciprocity and sensitivity of opposed-solenoid endovascular MRI probes
Journal
J Magn Reson
Author(s)
Crottet  D., Meuli  R., Wicky  S., van der Klink  J. J.
ISSN
1090-7807
Publication state
Published
Issued date
12/2002
Peer-reviewed
Oui
Volume
159
Number
2
Pages
219-25
Notes
Journal Article
Research Support, Non-U.S. Gov't --- Old month value: Dec
Abstract
Several forms of catheter-mounted "inside-out" probes for endovascular imaging have been proposed in the literature. The "opposed-solenoid" structure has been studied in relatively little detail, although it has some potential advantages over the others. Using a small water sample as a voxel, we measure point by point the spatial variation of the sensitivity and the rf field strength of such a probe, and connect the two by the reciprocity relation. By itself, the corresponding plot provides a nice example of the reciprocity relation at work; and for the characterization of the probe it gives a check on data quality. The results can be understood from simple considerations and agree well with the sensitivity observed in the image of a phantom.
Keywords
Blood Vessels/*pathology *Catheterization Humans Magnetic Resonance Spectroscopy/*instrumentation Phantoms, Imaging
Pubmed
Web of science
Create date
08/04/2008 14:47
Last modification date
20/08/2019 12:48
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