Table 1.
Observer 1 | Observer 2 | |
---|---|---|
Original leukoencephalopathy segmentation | 0.651 ± 0.154 | 0.602 ± 0.186 |
Second leukoencephalopathy segmentation with 2-D gradient threshold and a priori maps | 0.653 ± 0.137a | 0.615 ± 0.136a |
Third leukoencephalopathy segmentation with 3-D gradient threshold and a priori maps | 0.744±0.114b | 0.699±0.095c |
Paired t-tests were computed between the original algorithm and the two modified techniques.
Not significant;
p = 0.015;
p = 0.024.