Table 5.
Brain Regions Showing Correlation with Arousal Index and Desaturation Index
| Anatomic location | Region (Brodmann area) | Volume (mm3) | Center |
Max Eta-Sq | ||
|---|---|---|---|---|---|---|
| X | Y | Z | ||||
| Arousals | ||||||
| Superior frontal gyrus | B(8) | 896 | −1 | 18 | 48 | 0.65 |
| Middle frontal gyrus | R(10) | 1472 | 30 | 50 | −2 | 0.89 |
| L(47,10) | 1344 | −35 | 40 | −2 | 0.80 | |
| Inferior frontal gyrus | R(44) | 1152 | 53 | 10 | 19 | 0.68 |
| R(13) | 704 | 41 | 23 | 9 | 0.54 | |
| Precentral gyrus | L(4) | 960 | −55 | −11 | 33 | 0.54 |
| Insula | L(13) | 1216 | −37 | 12 | 11 | 0.71 |
| R(13) | 576 | 36 | 0 | 18 | 0.52 | |
| Parahippocampal gyrus | L(36) | 832 | −29 | −24 | −19 | 0.62 |
| Thalamus | L | 320 | −17 | −8 | 16 | 0.48 |
| Lentiform nucleus and lateral globus pallidus | R | 256 | 15 | −1 | 4 | 0.44 |
| Desaturations | ||||||
| Superior frontal gyrus | B(8) | 704 | 0 | 19 | 48 | 0.59 |
| Inferior frontal gyrus | R(44) | 768 | 53 | 10 | 19 | 0.59 |
Regions of decreased activation are in italics. R, right; L, left; B, bilateral.