Table 3.
Comparison of wall features between the IPI and non-IPI groups
| Variables | IPI group (n = 11) | Non-IPI group (n = 12) | t | P |
|---|---|---|---|---|
| Patients on MRA, n (%) | NA | 0.680 | ||
| Normal | 6 (54.55) | 8 (66.67) | ||
| Irregular | 5 (45.45) | 4 (33.33) | ||
| Patients on VISTA, n (%) | NA | 0.231 | ||
| Plaque | 10 (90.91) | 6 (50.00) | ||
| Slight wall-thickening | 1 (9.09) | 3 (25.00) | ||
| Normal wall | 0 (0) | 3 (25.00) | ||
| Slices on VISTA, %, mean ± SD | ||||
| Apparent plaque slices | 50.49 ± 23.14 | 15.16 ± 22.08 | 3.746 | 0.001 |
| Slight wall-thickening | 41.97 ± 16.86 | 40.59 ± 35.55 | 0.117 | 0.908 |
| slices | ||||
| Normal wall slices | 7.54 ± 18.33 | 44.25 ± 42.04 | –2.669 | 0.014 |
VISTA: Volumetric isotropic turbo spin echo acquisition; SD: Standard deviation; IPI: Isolated pontine infarction; MRA: Magnetic resonance angiography; NA: The variables between two groups were compared by Fisher exact test.