Measurement of NMR relaxation times using the minimum number of scans

Johnson, G., Ormerod, I. E., Tofts, P. S., Barnes, D. and du Boulay, E. P. (1986) Measurement of NMR relaxation times using the minimum number of scans. Acta Radiologica Supplementum, 369. pp. 496-499.

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Abstract

NMR relaxation time measurements derived from a set of three multi-slice sequences (which can examine the whole brain in 30 min) have been investigated. T1 and T2 values are 5% and 20% too short, respectively. Noise in the measurements was less than 2%. Temporal instability was negligible. Spatial non-uniformity was 1% (T1) and 3% (T2) within a single slice but 4% (T1) and 14% (T2) from slice to slice. Variations in cerebral tissue measurements have also been investigated: T1 varies by 6% and T2 by 12% over a population of normal controls. There can be significant patient-patient and topographical variations.

Item Type: Article
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
University of East Anglia > Faculty of Medicine and Health Sciences > Research Groups > Clinical Science and Trials
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Depositing User: Pure Connector
Date Deposited: 07 Oct 2015 17:00
Last Modified: 25 Jul 2018 11:09
URI: https://ueaeprints.uea.ac.uk/id/eprint/54590
DOI:

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