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CLTM
Guideline 12
| Question | Answer |
|---|---|
| LTM Amplifiers | LFF 0.5 or lower HFF 70 input impedance 1 mw noise 1 rms dynamic range 40 common mode rejection 60 |
| low light | 0.03-foot candles |
| color | 25-foot candles day light autonomic changes such as blushing or pallor |
| black and white | 0.5-foot candles only for day light |
| low level color | 1-10 footcandles |
| star light silicone intensified | 0.000025 |
| minimum channels for pre surgical evaluation | 16 |
| minimum digital storage for video and EEG | 24 hours or 30 gigabytes |
| monochrome display monitors | 525-line pairs minimum |
| color display monitors | 16x12 pixels 250-line pairs |
| screen size | 20 inches diagonal |
| byte | 8 |
| 1 KB | 1000 |
| 1 MB | 1,000,000 |
| 1 GB | 1,000,000,000 |
| 1 TB | 1,000,000,000,000 |
| Indications for LTM | Diagnosis, Classification/characterization, quantification |
| Strips | inserted through a burr hole |
| Epidural and subdural electrodes | record over the surface of the brain |
| GRID | 4-64 contacts require craniotomy 1-cm apart |
| Intracerebral or depth electrodes | record from within the brain have 16 recording contacts |
| Nichrome | alloy of nickel and chromium |
| Foramen ovale electrodes | record from mesial temporal structures a 1-4 contact placed in the ambient cistern inserted through the foramen ovale |