Research Article
[18F]-Fluoro-Deoxy-Glucose Positron Emission Tomography Scan Should Be Obtained Early in Cases of Autoimmune Encephalitis
Table 2
Structural and physiological workup.
| Patient | Days from onset to first image | First image modality | Days from onset to first positive image finding | First positive image modality | Days from onset to first EEG | Days from onset to first positive EEG findings | EEG finding |
| 1 | 4 | CT | NA | NA | 159 | NA | Normal | 2 | 46 | MRI | 109 | PET | 46 | 81 | Vertex seizure | 3 | 73 | MRI | 120 | PET | 83 | 180 | Periodic pattern | 4 | 184 | MRI | 184 | MRI | 183 | 183 | Nonlocalizable status | 5 | 10 | MRI | 18 | MRI | 53 | NA | Generalized slowing | 6 | 14 | CT | 16 | MRI | 22 | 22 | Right frontotemporal seizure | 7 | 9 | CT | 33 | PET | 14 | 18 | Bifrontal seizure |
| Average | 48.6 | | 80.0 | | 80.0 | 96.8 | |
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EEG, electroencephalogram; CT, computed tomography; PET, positron emission tomography; NA, not applicable.
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