Bibliographic Details
| Title: |
Reciprocity and sensitivity of opposed-solenoid endovascular MRI probes |
| Authors: |
Crottet, Denis1, Meuli, Reto2, Wicky, Stephan2, van der Klink, Jacques J.1 jacques.vanderklink@epfl.ch |
| Source: |
Journal of Magnetic Resonance. Dec2002, Vol. 159 Issue 2, p219. 7p. |
| Subjects: |
Magnetic resonance imaging, Blood vessels, Solenoids |
| 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. [Copyright &y& Elsevier] |
|
Copyright of Journal of Magnetic Resonance is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Database: |
Engineering Source |
