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  Super-resolution MRI with 2D Phaseless Encoding

Tian, R., Hennel, F., & Pruessmann, K. (2019). Super-resolution MRI with 2D Phaseless Encoding. In ISMRM 27th Annual Meeting & Exhibition.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000A-F7C0-6 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-F7C1-5
Genre: Meeting Abstract

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https://index.mirasmart.com/ISMRM2019/PDFfiles/4675.html (Publisher version)
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 Creators:
Tian, R1, Author           
Hennel, F, Author
Pruessmann, KP, Author
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1External Organizations, ou_persistent22              

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 Abstract: Super-resolution MRI with 1D phaseless encoding achieves high-resolution with immunity to shot-dependent phase fluctuation by simultaneously acquiring multiple k-space bands. We now explore a 2D extension of this technique to facilitate more k-space sampling strategies. Two distinct encoding schemes were analyzed and tested with EPI acquisition. By properly adjusting the overlapping of the mixed k-space bands, the 2D phaseless encoding could also be combined with the spiral acquisition. The amplitude modulation caused by band overlapping was eliminated by an inverse filter during reconstruction. The overlapped bands regions were also exploited to provide information about unexpected bands errors for post-processing corrections.

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 Dates: 2019-05
 Publication Status: Published online
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Title: 27th Annual Meeting and Exhibition of the International Society for Magnetic Resonance in Medicine (ISMRM 2019)
Place of Event: Montréal, QC, Canada
Start-/End Date: 2019-05-11 - 2019-05-16

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Title: ISMRM 27th Annual Meeting & Exhibition
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: 4675 Start / End Page: - Identifier: -