However, whilst there was some evidence that mean R2* on air was associated with sustained response, this did not reach statistical significance (OR 1.33, 0.96–1.86; p -value of 0.07). 3.3.
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Oxygen-Enhanced R2* Weighted MRI and Diffusion Weighted MRI of Head and Neck Squamous Cell Cancer Lymph Nodes in Prediction of 2-Year Outcome Following Chemoradiotherapy.
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These showed a similar relationship of these parameters to outcome, albeit less marked, with the mean R2* on air being significant (and O 2 approaching significance). 3.2.3.