| Autor: |
Kamel Hanan, Syms Richard R.A., Kardoulaki Evdokia M., Rea Marc |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
EPJ Applied Metamaterials, Vol 5, p 5 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2272-2394 |
| DOI: |
10.1051/epjam/2018001 |
| Popis: |
An implantable sensor for monitoring surgical wounds after bowel reconstruction is proposed. The sensor consists of a coupled pair of 8-element magneto-inductive ring resonators, designed for mounting on a biofragmentable anastomosis ring to give a local increase in signal-to-noise ratio near an annular wound during 1H magnetic resonance imaging. Operation on an anti-symmetric spatial mode is used to avoid coupling to the B1 field during excitation, and a single wired connection is used for MRI signal output. The electrical response and field-of-view are estimated theoretically. Prototypes are constructed from flexible elements designed for operation at 1.5 T, electrical responses are characterized and local SNR enhancement is confirmed using agar gel phantoms. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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