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Published in: Journal of Cardiovascular Magnetic Resonance 1/2011

Open Access 01-12-2011 | Research

Acceleration of tissue phase mapping with sensitivity encoding at 3T

Authors: Anja Lutz, Axel Bornstedt, Robert Manzke, Patrick Etyngier, G Ulrich Nienhaus, Wolfgang Rottbauer, Volker Rasche

Published in: Journal of Cardiovascular Magnetic Resonance | Issue 1/2011

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Abstract

Background

The objective of this study was to investigate the impact of sensitivity encoding on the quantitative assessment of cardiac motion in black blood cine tissue phase mapping (TPM) sequences. Up to now whole volume coverage of the heart is still limited by the long acquisition times. Therefore, a significant increase in imaging speed without deterioration of quantitative motion information is indispensable.

Methods

20 volunteers were enrolled in this study. Each volunteer underwent myocardial short-axis TPM scans with different SENSE acceleration factors. The influence of SENSE acceleration on the measured motion curves was investigated.

Results

It is demonstrated that all TPM sequences with SENSE acceleration have only minimum influence on the motion curves. Even with a SENSE factor of four, the decrease in the amplitude of the motion curve was less than 3%. No significant difference was observed for the global correlation coefficient and deviation between the motion curves obtained by the reproducibility and the SENSE accelerated measurements.

Conclusions

It is feasible to accelerate myocardial TPM measurements with SENSE factors up to 4 without losing substantial information of the motion pattern.
Appendix
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Metadata
Title
Acceleration of tissue phase mapping with sensitivity encoding at 3T
Authors
Anja Lutz
Axel Bornstedt
Robert Manzke
Patrick Etyngier
G Ulrich Nienhaus
Wolfgang Rottbauer
Volker Rasche
Publication date
01-12-2011
Publisher
BioMed Central
Published in
Journal of Cardiovascular Magnetic Resonance / Issue 1/2011
Electronic ISSN: 1532-429X
DOI
https://doi.org/10.1186/1532-429X-13-59

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