Correlation of human NMR T1values measuredin vivoand brain water content

Authors:
  • HMH. L. MacDonald
    H. L. MacDonald
  • BBB. A. Bell
    B. A. Bell
  • MSM. A. Smith
    M. A. Smith
  • DKD. M. Kean
    D. M. Kean
  • JTJ. L. Tocher
    J. L. Tocher
  • RDR. H. B. Douglas
    R. H. B. Douglas
  • JMJ. D. Miller
    J. D. Miller
  • JBJ. J. K. Best
    J. J. K. Best

Abstract
A relationship has been demonstrated between nuclear magnetic resonance (NMR) longitudinal relaxation times (T1 values) obtained in vivo in both normal and oedematous (peritumoral) brain tissue, and measurements of brain water obtained by gravimetric analysis of operative samples. Significant correlations were found in seven patients in both cortex (r = 0.97, P less than 0.001) and white matter (r = 0.92, P less than 0.001). These findings suggest that NMR may prove a useful technique for monitoring brain oedema.

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