Dymerska, Barbara;
Cardoso, Pedro;
Mahr, Nina;
Matt, Eva;
Fischmeister, Florian;
Beisteiner, Roland;
Trattnig, Siegfried;
(2018)
The impact of temporal signal fluctuations and susceptibility-related echo time shifts on BOLD sensitivity: an assessment in patients with brain pathologies at 7 T.
Presented at: BC-ISMRM 2018, Oxford, UK.
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Abstract
Examining tSNR but ignoring regions of reduced TEₗₒ꜀ₐₗwould erroneously suggest BS sufficient to map BOLD signal changes, causing false negative results. It is thus important to consider both tSNR and TEₗₒ꜀ₐₗ in order to reliably estimate BS and to facilitate identification of potential false negative results. This is particularly true at high fields (7 T) and in patients with large pathologies.
| Type: | Conference item (Presentation) |
|---|---|
| Title: | The impact of temporal signal fluctuations and susceptibility-related echo time shifts on BOLD sensitivity: an assessment in patients with brain pathologies at 7 T |
| Event: | BC-ISMRM 2018 |
| Location: | Oxford, UK |
| Dates: | September 2018 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://www.ismrm.org/british/2018FinalProgramme.p... |
| Language: | English |
| Additional information: | This version is the author-accepted manuscript. 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.ucl.ac.uk/id/eprint/10190758 |
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