Table 5.
cMRI and EEG pathologies in patients with bipolar syndromes.
| Localization of cMRI alterationsa | Frequency absoluteb (%) |
|---|---|
| White matter lesions/cerebral microangiopathy | 22/50 (44) |
| Cortical atrophy | 2/50 (4) |
| Postischemic changes | 1/50 (2) |
| Other alterations | 3/50 (6) |
| Cerebellar cavernoma | 1/50 (2) |
| Mild asymmetrical hippocampi | 1/50 (2) |
| Mild gliosis | 1/50 (2) |
| Anatomic variations | 2/50 (4) |
| Arteriovenous malformation | 1/50 (2) |
| Aplasia of the left transverse sinus | 1/50 (2) |
| Overall cMRI alterations | 30/50 (60) |
| EEG pathologies | Frequency absoluteb (%) |
| Continuous generalized slow activity | 2/61 (3) |
| Continuous regional slow activity | 0/61 (0) |
| Intermittent generalized slow activity | 9/61 (15) |
| Intermittent regional slow activity | 3/61 (5) |
| Epileptic activity | 0/61 (0) |
| Overall EEG pathologies | 14/61 (23) |
aFor eight patients, only cranial computer tomography was available.
bOnly the predominant cMRI lesion or EEG alteration is listed for each patient.
cMRI, cerebral magnetic resonance imaging; EEG, electroencephalography.