Table 2:
Lesion count and sensitivity of prospective and retrospective MRI scoringa
| Lesion Type | Histology |
Prospective MRI |
Retrospective MRI |
||||
|---|---|---|---|---|---|---|---|
| Count | T2WI | T2*WI | P Value | T2WI | T2*WI | P Value | |
| I | 14 | 8 (57) | 2 (14) | – | 14 (100) | 13 (93) | – |
| II | 16 | 3 (19) | 5 (31) | – | 13 (81) | 10 (63) | – |
| III | 43 | 5 (12) | 5 (12) | – | 32 (74) | 36 (84) | – |
| IV | 25 | 11 (44) | 4 (16) | – | 22 (88) | 23 (92) | – |
| GML (I–IV) | 98 | 27 (28) | 16 (16) | .054 | 81 (83) | 82 (84) | .803 |
| GML (II–IV) | 84 | 19 (23) | 14 (17) | .380 | 67 (80) | 69 (82) | 0.608 |
| WML | 7 | 6 (86) | 3 (43) | – | 7 (100) | 7 (100) | – |
| Total | 105 | 33 (31) | 19 (18) | .018b | 88 (84) | 89 (85) | .803 |
Note:— – indicates not statistically assessed.
a
Sensitivity (in percentages between parentheses) was calculated by dividing the number of lesions scored in the prospective or retrospective ratings by the number of lesions assessed on histopathology, times 100%.
b
Significant.