Demographics of infarcts in isolated MMAa
| MMA Class | No. | GP Infarct | SNr Infarct | GP+SNr Infarct | Isolated GP Infarct | Isolated SNr Infarct |
|---|---|---|---|---|---|---|
| cblA | 7 | 5 (71%) | 5 (71%) | 4 | 1 | 1 |
| cblB | 7 | 3 (43%) | 3 (43%) | 2 | 1 | 1 |
| All mut subtypes | 26 | 11 (42%) | 9 (34%) | 7 | 4 | 2 |
| mut- | 4 | 1 (25%) | 0 (0%) | 0 | 1 | 0 |
| muto | 22 | 10 (45%) | 9 (41%) | 7 | 3 | 2 |
| All patients | 40 | 19 (48%) | 17 (43%) | 13 | 6 | 4 |
↵a Of 40 patients scanned, 16 had both 3D-T1WI and bFFE images (most sensitive for detection of SNr infarcts), 22 had 3D-T1WI without bFFE images (less sensitive), and 2 had only 2D-T1WI (least sensitive). SNr infarcts were detected at a higher rate among patients with bFFE images (56%) than those without them (36%); therefore, SNr infarcts are probably under-reported.