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Magnetic Resonance Materials in Physics, Biology and Medicine

Published in:

01-10-2014 | Research Article

Two-dimensional accelerated MP-RAGE imaging with flexible linear reordering

Authors: Daniel Brenner, Rüdiger Stirnberg, Eberhard D. Pracht, Tony Stöcker

Published in: Magnetic Resonance Materials in Physics, Biology and Medicine | Issue 5/2014

Abstract

Object

Implementation of an accelerated Magnetization Prepared RApid Gradient Echo (MP-RAGE) sequence for T1 weighted neuroimaging; exploiting modern MRI technologies to minimize scan time while preserving the image quality.

Materials and methods

A custom MP-RAGE sequence was implemented on a state-of-the-art 3T MR scanner equipped with a 32-channel receiver array head coil. The sequence utilized a shifted CAIPIRINHA k _y–k _z under-sampling pattern combined with elliptical scanning and a two-dimensional view ordering scheme to achieve high parallel imaging acceleration factors at maintained image contrast.

Results

It could be shown that MP-RAGE accelerated in two k-space directions outperforms single direction acceleration, which is the common practice with standard view ordering. Applying the CAIPIRINHA technique in conjunction with elliptical scanning further increased this benefit.

Conclusion

By combining MP-RAGE with CAIPIRINHA sampling and elliptical scanning, the scan time can be reduced from 4–5 min to 2–3 min with insignificant reduction in image quality.

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Title: Two-dimensional accelerated MP-RAGE imaging with flexible linear reordering
Authors: Daniel Brenner
Rüdiger Stirnberg
Eberhard D. Pracht
Tony Stöcker
Publication date: 01-10-2014
Publisher: Springer Berlin Heidelberg
Published in: Magnetic Resonance Materials in Physics, Biology and Medicine / Issue 5/2014
Print ISSN: 0968-5243
Electronic ISSN: 1352-8661
DOI: https://doi.org/10.1007/s10334-014-0430-y

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Two-dimensional accelerated MP-RAGE imaging with flexible linear reordering

Abstract

Object

Materials and methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Object

Materials and methods

Results

Conclusion

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