Research Article

Evolution of Apparent Diffusion Coefficient and Fractional Anisotropy in the Cerebrum of Asphyxiated Newborns Treated with Hypothermia over the First Month of Life

Table 3

Comparison of fractional anisotropy (FA) values in each region of interest between healthy newborns and asphyxiated newborns treated with hypothermia developing or not developing brain injury, on day 1 of life, on days 2-3 of life, around day 10 of life, and around day 30 of life.

ThalamusPosterior limb of internal capsuleLentiform nucleusAnterior white matterPosterior white matterFrontal cortical grey matterParietal cortical grey matterOccipital cortical grey matter

On day 1 of life
 Healthy newborns 0.167 ± 0.006 ()0.524 ± 0.044 ()0.136 ± 0.018 ()0.134 ± 0.031 ()0.176 ± 0.070 ()0.153 ± 0.030 ()0.148 ± 0.022 ()0.154 ± 0.027 ()
 Asphyxiated newborns—no injury0.169 ± 0.016 ()0.516 ± 0.049 ()0.143 ± 0.017 ()0.113 ± 0.027 ()0.160 ± 0.035 ()0.138 ± 0.018 ()0.139 ± 0.018 ()0.129 ± 0.031 ()
 Asphyxiated newborns—injury0.174 ± 0.018 ()0.484 ± 0.031 ()0.139 ± 0.012 ()0.101 ± 0.027 ()0.148 ± 0.020 ()0.147 ± 0.019 ()
value: no injury versus healthynsnsnsnsnsnsnsns
value: injury versus healthynsnsnsns
value: injury versus no injurynsnsnsns

On days 2-3 of life
 Healthy newborns0.173 ± 0.012 ()0.491 ± 0.033 ()0.143 ± 0.026 ()0.130 ± 0.018 ()0.176 ± 0.028 ()0.162 ± 0.017 ()0.141 ± 0.038 ()0.149 ± 0.034 ()
 Asphyxiated newborns—no injury0.165 ± 0.019 ()0.484 ± 0.038 ()0.142 ± 0.026 ()0.128 ± 0.028 ()0.154 ± 0.025 ()0.150 ± 0.026 ()0.146 ± 0.019 ()0.136 ± 0.029 ()
 Asphyxiated newborns—injury0.173 ± 0.021 ()0.478 ± 0.041 ()0.142 ± 0.031 ()0.128 ± 0.037 ()0.162 ± 0.035 ()0.165 ± 0.020 ()0.139 ± 0.020 ()0.167 ± 0.029 ()
value: no injury versus healthynsnsnsnsnsnsnsns
value: injury versus healthynsnsnsnsnsnsns
value: injury versus no injurynsnsnsnsnsnsns

Around day 10 of life
 Healthy newborns 0.175 ± 0.011 ()0.503 ± 0.039 ()0.156 ± 0.015 ()0.135 ± 0.017 ()0.186 ± 0.019 ()0.159 ± 0.018 ()0.127 ± 0.020 ()0.133 ± 0.013 ()
 Asphyxiated newborns—no injury0.171 ± 0.020 ()0.502 ± 0.040 ()0.136 ± 0.019 ()0.131 ± 0.026 ()0.142 ± 0.031 ()0.154 ± 0.037 ()0.140 ± 0.026 ()0.121 ± 0.026 ()
 Asphyxiated newborns—injury0.153 ± 0.027 ()0.414 ± 0.040 ()0.119 ± 0.014 ()0.112 ± 0.027 ()0.141 ± 0.025 ()0.170 ± 0.066 ()0.145 ± 0.027 ()0.121 ± 0.020 ()
value: no injury versus healthynsns0.009ns0.001nsnsns
value: injury versus healthy0.0480.00020.001ns (0.087)0.0003nsnsns
value: injury versus no injury0.021<0.00010.00040.034nsnsnsns

Around day 30 of life
 Healthy newborns0.197 ± 0.014 ()0.545 ± 0.028 ()0.159 ± 0.012 ()0.160 ± 0.016 ()0.229 ± 0.042 ()0.182 ± 0.047 ()0.169 ± 0.027 ()0.132 ± 0.019 ()
 Asphyxiated newborns—no injury0.195 ± 0.024 ()0.543 ± 0.047 ()0.154 ± 0.022 ()0.142 ± 0.028 ()0.186 ± 0.052 ()0.154 ± 0.026 ()0.160 ± 0.027 ()0.139 ± 0.040 ()
 Asphyxiated newborns—injury0.173 ± 0.017 ()0.474 ± 0.040 ()0.145 ± 0.015 ()0.115 ± 0.027 ()0.153 ± 0.042 ()0.180 ± 0.041 ()0.173 ± 0.014 ()0.169 ± 0.049 ()
value: no injury versus healthynsnsnsns (0.074)0.025nsnsns
value: injury versus healthy0.0030.00010.0220.0040.0006ns
value: injury versus no injury0.002<0.0001ns0.011nsns

Mean ± standard deviation
Injury versus no injury: , , and .