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  Multi-echo segmented diffusion-weighted MRI for ex-vivo whole-brain measurements with 300mT/m gradients

Eichner, C., Mildner, T., Paquette, M., Schlumm, T., Crockford, C., Wittig, R. M., et al. (2019). Multi-echo segmented diffusion-weighted MRI for ex-vivo whole-brain measurements with 300mT/m gradients. In Proceedings of the 27th Annual Meeting of the International Society for Magnetic Resonance in Medicine (ISMRM).

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Genre: Meeting Abstract

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http://indexsmart.mirasmart.com/ISMRM2019/PDFfiles/3510.html (beliebiger Volltext)
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 Urheber:
Eichner, Cornelius1, Autor           
Mildner, Toralf2, Autor           
Paquette, Michael1, Autor           
Schlumm, Torsten2, Autor           
Crockford, Catherine3, Autor           
Wittig, Roman M.3, Autor           
Kirilina, Evgeniya4, Autor           
Jäger, Carsten4, Autor           
Möller, Harald E.2, Autor           
Weiskopf, Nikolaus4, Autor           
Friederici, Angela D.1, Autor           
Anwander, Alfred1, Autor           
Affiliations:
1Department Neuropsychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634551              
2Methods and Development Unit Nuclear Magnetic Resonance, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634558              
3Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society, ou_1497674              
4Department Neurophysics (Weiskopf), MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_2205649              

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 Zusammenfassung: We provide a novel method to increase SNR of segmented diffusion-weighted EPI acquisitions. Multiple gradient echoes were acquired after each diffusion-preparation and combined in an SNR-optimized way using weightings from quantitative T2* maps. The combination of diffusion-weighted echoes yielded an SNR-gain of 58% compared to single-echo dMRI data with an increase in the segmented readout duration by only 23.1 ms. The multi-echo diffusion MRI acquisition and combination were employed to acquire high-quality ex-vivo diffusion-weighted MRI data from a wild chimpanzee brain.

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 Datum: 2019-05-11
 Publikationsstatus: Online veröffentlicht
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Projektname : Computational Connectomics / SPP 2041
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Förderorganisation : German Research Foundation (DFG)

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Titel: Proceedings of the 27th Annual Meeting of the International Society for Magnetic Resonance in Medicine (ISMRM)
Genre der Quelle: Konferenzband
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Seiten: - Band / Heft: 27 Artikelnummer: 3510 Start- / Endseite: - Identifikator: -