TABLE 1:
Volumes of abnormality expressed as percentages of the lesion on T2-weighted imaging
Finding
Grade III
Grade IV
P
Value
Contrast enhancing
9.8 ± 12.3
32.7 ± 18.5
<.01
No decrease in signal intensity
7.6 ± 10.7
21.6 ± 22.7
<.02
Abnormal peak height
13.0 ± 10.0
24.9 ± 15.8
<.01
Abnormal recovery
10.1 ± 16.7
22.7 ± 16.9
<.001