T2 relaxation of peripheral nerve measured in vivo.

Does MD, Snyder RE
Magn Reson Imaging. 1995 13 (4): 575-80

PMID: 7674853 · DOI:10.1016/0730-725x(94)00138-s

It is demonstrated that multi-exponential transverse (T2) relaxation components can be estimated from multi-echo images of peripheral nerve. Three T2-relaxation components with T2 values +/- standard deviations (populations +/- standard deviations) of 19 +/- 7 ms (26 +/- 9%), 63 +/- 31 ms (29 +/- 11%) and 241 +/- 24 ms (45 +/- 7%) have been identified in vivo in the sciatic nerve of the amphibian Xenopus laevis. The longer-lived component, not identified previously in vivo, provides a significant contrast-to-noise ratio (CNR) between nerve and muscle in the latter-echo images. It is shown that the CNR can be further improved by the averaging of selected images from the multi-echo set.

MeSH Terms (7)

Animals Female In Vitro Techniques Magnetic Resonance Imaging Peripheral Nerves Sciatic Nerve Xenopus laevis

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