Table 4 Comparison between different MRI pulse sequences (T2, Flair and DIR) as regarding detection rate and number of cortical grey matter lesions among studied 40 MS patients:
Variable | T2 sequence | Flair sequence | DIR sequence | P value |
|---|---|---|---|---|
Detection rate of cortical grey matter lesions (intracortical and leukocortical) | 9(22.5%) | 20(50%) | 24(60%) | Â |
Number of cortical grey matter lesions | (6–11) ^ 8 ± 1.7^^ | (2–20) ^ 10.7 ± 5.2^^ | (1–22) ^ 10.6 ± 6.5^^ |  < 0.001* |