Table 5 Differences in imaging findings between MMA patients with different developmental quotient subgroups.
MR imaging finding | The group by developmental quotient (N, %) | χ2 | P | |
|---|---|---|---|---|
Normal (11) | Lower (26) | |||
Cerebral sulcus widened | 4 (36.4) | 13 (50.0) | 0.579 | 0.447 |
Cerebellar atrophy | 1 (9.1) | 6 (23.1) | 0.986 | 0.321 |
Brainstem thinning | 1 (9.1) | 4 (15.4) | 0.262 | 0.609 |
Corpus callosum thinning | 0 | 15 (57.7) | 10.673 | 0.001 |
Cortical atrophy (sulcal widening) | 2 (18.2) | 13 (50.0) | 3.246 | 0.052 |
Ventricular dilation (0–3 grade) | ||||
0–mild | 11 (100) | 18 (69.2) | 5.366 | 0.049a |
Moderate–severe | 0 | 8 (30.8) | 4.318 | 0.038a |
Subcortical white matter change | 1 (9.1) | 13 (50.0) | 5.500 | 0.019 |
Periventricular white matter change | ||||
0 | 3 (27.3) | 5 (19.2) | 1.807 | 0.730a |
Mild | 9 (81.8) | 16 (61.5) | ||
Moderate | 0 | 3 (11.5) | ||
Severe | 0 | 1 (3.8) | ||
Internal capsule change | 0 | 4 (15.4) | 1.897 | 0.168 |
Signal change consistent with focal infarct | 1 (9.1) | 2 (7.7) | 0.020 | 0.887 |
Abnormal signal in basal ganglia | 0 | 1 (3.8) | – | |
