A multi-center study: intra-scan and inter-scan variability of diffusion spectrum imaging

NeuroImage
A LemkaddemJ-P Thiran

Abstract

The objective of this study was to investigate whether it is possible to pool together diffusion spectrum imaging data from four different scanners, located at three different sites. Two of the scanners had identical configuration whereas two did not. To measure the variability, we extracted three scalar maps (ADC, FA and GFA) from the DSI and utilized a region and a tract-based analysis. Additionally, a phantom study was performed to rule out some potential factors arising from the scanner performance in case some systematic bias occurred in the subject study. This work was split into three experiments: intra-scanner reproducibility, reproducibility with twin-scanner settings and reproducibility with other configurations. Overall for the intra-scanner and twin-scanner experiments, the region-based analysis coefficient of variation (CV) was in a range of 1%-4.2% and below 3% for almost every bundle for the tract-based analysis. The uncinate fasciculus showed the worst reproducibility, especially for FA and GFA values (CV 3.7-6%). For the GFA and FA maps, an ICC value of 0.7 and above is observed in almost all the regions/tracts. Looking at the last experiment, it was found that there is a very high similarity of the outcomes fr...Continue Reading

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Citations

Oct 16, 2015·Journal of Neuroimaging : Official Journal of the American Society of Neuroimaging·Vesna PrčkovskaPablo Villoslada
May 2, 2013·NeuroImage·Djalel Eddine MeskaldjiJean-Philippe Thiran
Jun 28, 2015·Neuroscience·H TakaoK Ohtomo
May 4, 2016·NeuroImage·H MirzaalianY Rathi
Aug 3, 2017·Human Brain Mapping·Gabriel GirardMaxime Descoteaux
Jan 4, 2019·Journal of Magnetic Resonance Imaging : JMRI·Charlotte TimmermansAndrew Maas
Jan 1, 2018·Journal of Mathematical Imaging and Vision·R DuitsJ M Portegies
Oct 8, 2019·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Andrew D SchweitzerA John Tsiouris
Feb 25, 2021·Journal of Magnetic Resonance Imaging : JMRI·Hidemasa TakaoUNKNOWN Alzheimer's Disease Neuroimaging Initiative
Jun 22, 2021·Magnetic Resonance Imaging·Hidemasa TakaoUNKNOWN Alzheimer's Disease Neuroimaging Initiative
Jul 27, 2021·Journal of Alzheimer's Disease : JAD·Hidemasa TakaoUNKNOWN Alzheimer’s Disease Neuroimaging Initiative
Sep 24, 2021·Journal of Magnetic Resonance Imaging : JMRI·Hidemasa TakaoUNKNOWN Alzheimer's Disease Neuroimaging Initiative

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