Kumar, Suchit;
Kim, Jeong-Hee;
Lee, Heung-Kyu;
Oh, Chang-Hyun;
(2019)
Optimization of 4-Port Asymmetric Elliptical Birdcage RF Coil for 1.5 Tesla MRI.
In:
Proceedings of the ISMRM 27th Annual Meeting & Exhibition.
ISMRM: Montréal, QC, Canada.
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Abstract
The elliptical whole-body radiofrequency (RF) coil can be used for RF transmission/reception in magnetic resonance (MR)-guided treatment or MR-fused system with space between the RF shield and the gradient coil available for other imaging/treatment modality. The elliptical birdcage has higher B1⁺ field uniformity than circular birdcage due to increased filling factor between the RF coil and target. In this work, the asymmetric elliptical birdcage is proposed to improve overall performance through electromagnetic simulations. This work compares the 2-port and 4-port excitations and their effects on B1⁺ field uniformity and SAR deposition for both circular and elliptical coil with symmetrical/asymmetrical structures.
| Type: | Proceedings paper |
|---|---|
| Title: | Optimization of 4-Port Asymmetric Elliptical Birdcage RF Coil for 1.5 Tesla MRI |
| Event: | International Society for Magnetic Resonance in Medicine (ISMRM) Annual Meeting |
| Location: | Montréal, QC, Canada |
| Dates: | 11 May 2019 - 16 May 2019 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://cds.ismrm.org/protected/19MProceedings/PDF... |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Clinical and Experimental Epilepsy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10175064 |
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