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  Exploring the Limits of Super-Resolution MRI with Phaseless Encoding

Tian, R., Hennel, F., & Pruessmann, K. (2018). Exploring the Limits of Super-Resolution MRI with Phaseless Encoding. In Joint Annual Meeting ISMRM-ESMRMB 2018.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000A-F7D4-0 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-F7D5-F
Genre: Meeting Abstract

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https://archive.ismrm.org/2018/2671.html (Abstract)
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Tian, R1, Author           
Hennel, F, Author
Pruessmann, KP, Author
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1External Organizations, ou_persistent22              

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 Abstract: The recently proposed method of Super-resolution (SR) MRI with phaseless subpixel encoding simultaneously samples three neighboring k-space bands and provides resolution enhancement factor up to 3.0. We now demonstrate an almost five-fold resolution enhancement by applying additional encoding steps of higher modulation frequency, which allows five bands to be acquired without compromising the methods’ immunity to phase fluctuations. Since the signal-to-noise ratio at high resolution becomes critical, we derived and experimentally verified the optimum flip angle of the encoding (tagging) sequence. A possibility to correct artefacts caused by flip angle inhomogeneity is also shown based on simulation.

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 Dates: 2018-06
 Publication Status: Published online
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Title: Joint Annual Meeting ISMRM-ESMRMB 2018
Place of Event: Paris, Fance
Start-/End Date: 2018-06-16 - 2018-06-21

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Title: Joint Annual Meeting ISMRM-ESMRMB 2018
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 2671 Start / End Page: - Identifier: -