| LATTA, Peter, Z. STARCUK, M. GRUWEL and Boguslaw TOMANEK. K-space Trajectory Calibration for Improved Precision of Quantitative Ultrashort Echo Time Imaging. Online. In Manka, J Tysler, M Witkovsky, V Frollo, I. 2017 11TH INTERNATIONAL CONFERENCE ON MEASUREMENT. NEW YORK: IEEE, 2017, p. 197-200. ISBN 978-80-972629-1-4. Available from: https://dx.doi.org/10.23919/MEASUREMENT.2017.7983570. |
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@inproceedings{1649237,
author = {Latta, Peter and Starcuk, Z. and Gruwel, M. and Tomanek, Boguslaw},
address = {NEW YORK},
booktitle = {2017 11TH INTERNATIONAL CONFERENCE ON MEASUREMENT},
doi = {http://dx.doi.org/10.23919/MEASUREMENT.2017.7983570},
editor = {Manka, J Tysler, M Witkovsky, V Frollo, I},
keywords = {Ultrashort Echo Time (UTE); K-space Trajectory Calibration; Proton Density},
howpublished = {elektronická verze "online"},
language = {eng},
location = {NEW YORK},
isbn = {978-80-972629-1-4},
pages = {197-200},
publisher = {IEEE},
title = {K-space Trajectory Calibration for Improved Precision of Quantitative Ultrashort Echo Time Imaging},
year = {2017}
}
TY - JOUR
ID - 1649237
AU - Latta, Peter - Starcuk, Z. - Gruwel, M. - Tomanek, Boguslaw
PY - 2017
TI - K-space Trajectory Calibration for Improved Precision of Quantitative Ultrashort Echo Time Imaging
PB - IEEE
CY - NEW YORK
SN - 9788097262914
KW - Ultrashort Echo Time (UTE)
KW - K-space Trajectory Calibration
KW - Proton Density
N2 - Ultrashort echo time imaging (UTE) is often the method of choice for measurement of short-lived T-2 signals from biological tissues. The UTE acquisition is based on radial or spiral sampling schemes which, in general, are sensitive to small discrepancies between prescribed and actual trajectories. Such errors are usually observed as image quality degradation, visible as ghosting or intensity variation. This is even more serious for quantitative applications when intensity variation can cause serious bias in the estimation of measured parameters such as proton density (PD). Here we investigate such behavior of UTE acquisition and demonstrate that proper calibration of the gradient channels could minimize these type of the errors. Phantom experiments proved the efficiency of the application trajectory calibration approach.
ER -
LATTA, Peter, Z. STARCUK, M. GRUWEL and Boguslaw TOMANEK. K-space Trajectory Calibration for Improved Precision of Quantitative Ultrashort Echo Time Imaging. Online. In Manka, J Tysler, M Witkovsky, V Frollo, I. \textit{2017 11TH INTERNATIONAL CONFERENCE ON MEASUREMENT}. NEW YORK: IEEE, 2017, p.~197-200. ISBN~978-80-972629-1-4. Available from: https://dx.doi.org/10.23919/MEASUREMENT.2017.7983570.
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