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Evaluation of 3D T1-weighted imaging at 3T across scanner vendors and models

Vos, SB; Cardoso, MJ; Wylezinska-Arridge, M; Thomas, DL; De Vita, E; Yiannakas, MC; Carmichael, DW; ... Ourselin, S; + view all (2016) Evaluation of 3D T1-weighted imaging at 3T across scanner vendors and models. In: (Proceedings) ISMRM 24th Annual Meeting & Exhibition. (pp. pp. 4701-4703). International Society for Magnetic Resonance in Medicine: Singapore. Green open access

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Abstract

Volumetric analyses of 3D T1-weighted images has become an integral part of the clinical work-up and research studies. Variation between scanners, in both vendors and models, is a major confound in combining imaging-derived biomarkers across sites. In this work, we analyse test-retest data from di×erent days on six 3 T scanners from three vendors to quantify this inter-scanner variability compared to intra-scanner variability. Contrast-to-noise ratios as well as volumetric analyses are performed showing between-scanner variation in total brain volumes – indicating di×erent scanner calibrations – but also tissue-speciÒc di×erences – possibly arising from di×erent e×ective contrasts.

Type: Proceedings paper
Title: Evaluation of 3D T1-weighted imaging at 3T across scanner vendors and models
Event: ISMRM 24th Annual Meeting & Exhibition
Location: Singapore
Dates: 07 May 2016 - 13 May 2016
ISBN-13: 978-1-5108-3768-3
Open access status: An open access version is available from UCL Discovery
Publisher version: http://www.proceedings.com/33916.html
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
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 > Brain Repair and Rehabilitation
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
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Neuroinflammation
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: https://discovery.ucl.ac.uk/id/eprint/10053237
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