Robinson, Simon Daniel;
Bogner, Wolfgang;
Dymerska, Barbara;
Cardoso, Pedro;
Grabner, Guenther;
Deligianni, Xeni;
Bieri, Oliver;
(2015)
COMbining Phased Array Data Using Offsets from a Short Echo-Time Reference Scan (COMPOSER).
Presented at: SMRT 24th Annual Meeting, Toronto, ON, Canada.
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Abstract
We present a phase-sensitive method for the combination of data from array coils for which there is no volume reference coil, such as PTx and some UHF receive arrays. A very fast variable echo-time (vTE) reference scan with a sub-millisecond TE is used to measure the complex sensitivity of the array. Dividing high resolution, T2*-weighted (e.g. SWI) data by the vTE scan matches the phase of the array elements, allowing the complex signals to be combined. This approach is fast, robust, requires no phase unwrapping of phase and outperforms the rival methods tested.
| Type: | Conference item (Presentation) |
|---|---|
| Title: | COMbining Phased Array Data Using Offsets from a Short Echo-Time Reference Scan (COMPOSER) |
| Event: | SMRT 24th Annual Meeting |
| Location: | Toronto, ON, Canada |
| Dates: | 30 May - 31 May 2015 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://archive.ismrm.org/2015/3308.html |
| 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 > Imaging Neuroscience |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10190756 |
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