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. 2018 Sep 26;13(9):e0203682. doi: 10.1371/journal.pone.0203682

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© 2018 Eijsvoogel et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 4 — Correlation between attenuation and blood volume for men and women for the high pitch and AS protocol [A+B] and correlation between CNR and blood volume for men and women and the high pitch and AS protocol [C+D]. Correlation between attenuation and blood volume was slightly negative in men and women for the high pitch protocol (r = -0.296 and r = -0.033) and women for the AS protocol (r = -0.153). Men scanned with the AS protocol showed a slight positive correlation between HU and blood volume (r = 0.268) [A+B]. Correlation between CNR and blood volume was slightly negative in men for the high pitch protocol (r = -0.213) and no correlation was found between CNR and blood volume in women for the high pitch protocol. For the AS protocol, for both men and women a slight negative correlation was found (r = -0.155 and r = -0.258) [C+D]. All correlations showed no significance (p > 0.05).