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 April 23, 2024)
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Comparison of T1 measurement using ISMRM/NIST system phantom
Published
Author(s)
, , , , 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
Created May 9, 2016, Updated February 19, 2017