Signal intensities and ADC values of lesions of DWI on initial MR imaging in five patients and follow-up MR imaging in one patient
| Lesions | Signal Intensity on DWI (High/Mixed/Iso) | ADC Value (10−6 mm2/s) | ADC Ratioa |
|---|---|---|---|
| Initial patients (n = 5) | |||
| Cerebellar dentate nucleus (n = 5) | 2/2/1 | 885 ± 67 | 1.2 ± 0.06 |
| Midbrain (n = 5) | |||
| Tectum (n = 3) | 2/0/1 | 872 ± 59 | 1.1 ± 0.10 |
| Red nucleus (n = 2) | 1/1/0 | 929 ± 2 | 1.3 ± 0.01 |
| Tegmentum around peri-aqueductal GM (n = 2) | 2/0/0 | 1021 ± 59 | 1.5 ± 0.09 |
| Dorsal pons (n = 4) | 2/0/2 | 844 ± 75 | 1.1 ± 0.16 |
| Dorsal medulla (n = 3) | 1/1/1 | 959 ± 162 | 1.3 ± 0.25 |
| Splenium (n = 2) | 2/0/0 | 515 ± 195 | 0.7 ± 0.30 |
| Follow-up patient (n = 1) | |||
| Cerebellar dentate nucleus (n = 1) | (0/0/1) | 734 | 1.0 |
| Splenium (n = 1) | (1/0/0) | 1097 | 1.4 |
Note:—Iso indicates isointense; GM, gray matter.
a ADC values and ratios are presented as mean ± SD. ADC ratio is the ratio of the ADC value of a lesion to that of normal subcortical white matter.