Comparison of T1 measurement using ISMRM/NIST system phantom

Published

May 9, 2016

Author(s)

Kathryn E. Keenan, Karl F. Stupic, Michael A. Boss, Stephen E. Russek, Thomas L. Chenevert, Pottumarthi V. Prasad, Wilburn E. Reddick, Jie Zheng, Peng Hu, Edward F. Jackson

Abstract

We used the ISMRM/NIST system phantom to assess variations of T1 measurements across MRI systems at 1.5 T and 3 T, to determine the repeatability and reproducibility of the T1 measurements. This study demonstrates that T1 variations from NMR-measured value are correlated site-to-site within a vendor and by position within the head coil. The deviation from the NMR-measured values is greater at 3 T than at 1.5 T. The VFA data has a larger variation than IR; B1 inhomogeneity could contribute to the larger systematic error in VFA measurements. The ISMRM/NIST system phantom is an excellent tool for evaluating multi-site MRI acquisition protocols.

Proceedings Title

Proceedings of the International Society of Magnetic Resonance in Medicine

Issue

Program #3290

Conference Dates

May 9-16, 2016

Conference Location

Singapore

Conference Title

ISMRM 24th Annual Meeting

Pub Type

Conferences

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Keywords

magnetic imaging, measurement variability, medical imaging

Citation

Keenan, K. , Stupic, K. , Boss, M. , Russek, S. , Chenevert, T. , Prasad, P. , Reddick, W. , Zheng, J. , Hu, P. and Jackson, E. (2016), Comparison of T1 measurement using ISMRM/NIST system phantom, Proceedings of the International Society of Magnetic Resonance in Medicine, Singapore, -1, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=919826 (Accessed December 12, 2024)