Article Figures & Data
Figures
- Fig 1.
Transit time-corrected CBF is measured within the ROIs: frontal GM (a); caudate (b); occipital GM (c); frontal WM (d); thalamus (e); and occipital WM (f).
- Fig 2.
Intragroup comparison of rCBF in the frontal and occipital lobes. A single asterisk indicates P < .05; double asterisks, P < .001.
- Fig 3.
Relationship between postmenstrual age and CBF. A single asterisk indicates P < .05; double asterisks, P < .001.
Tables
- Table 1:
Regional CBF in the age groups of preterm neonates, term-equivalent-age neonates, and infantsa
Brain Region Preterm (n = 13) TEA (n = 13) Infants (n = 6) P Value Preterm vs TEA Preterm vs Infants TEA vs Infants CBF (mL/100 g/min) Caudate 21.2 (6.9) 25.5 (6.6) 42.9 (7.1) <.001 .260 <.001 <.001 Thalamus 27.7 (11.4) 32.2 (7.1) 36.2 (7.5) .168 .437 .166 .658 F-GM 16.8 (4.1) 18.8 (3.8) 41.8 (12.0) <.001 .688 <.001 <.001 O-GM 19.1 (6.2) 21.8 (3.6) 49.8 (19.8) <.001 .755 <.001 <.001 F-WM 7.3 (3.1) 8.4 (1.9) 28.3 (7.5) <.001 .744 <.001 <.001 O-WM 9.9 (3.5) 11.9 (3.3) 35.6 (14.1) <.001 .718 <.001 <.001 Whole-brain 15.5 (4.2) 18.3 (3.3) 38.3 (9.5) <.001 .388 <.001 <.001 rCBF (%) Caudate 136.4 (25.6) 140.8 (28.9) 116.0 (25.3) .184 .911 .291 .168 Thalamus 174.1 (33.1) 177.2 (28.1) 96.5 (17.6) <.001 .960 <.001 <.001 F-GM 111.0 (24.9) 103.5 (15.2) 108.5 (11.6) .614 .592 .965 .858 O-GM 122.8 (19.8) 120.8 (17.5) 127.6 (26.1) .791 .965 .879 .773 F-WM 46.7 (16.5) 46.3 (7.9) 73.9 (7.1) <.001 .995 <.001 <.001 O-WM 63.6 (15.4) 65.6 (10.4) 90.3 (13.7) .001 .980 .001 .001 ↵a Data are mean (standard deviation).
Group F-GM O-GM P Value F-WM O-WM P Value Preterm 111.0 (24.9) 122.8 (19.8) .730 46.7 (16.5) 63.6 (15.4) .004 TEA 103.5 (15.2) 120.8 (17.5) .026 46.3 (7.9) 65.6 (10.4) <.001 Infants 108.5 (11.6) 127.6 (26.1) .190 73.9 (7.1) 90.3 (13.7) .046 ↵a Data are mean (standard deviation) (%).
