Display of orbitofrontal and insular anatomy on axial MR images
| Feature | Left Hemisphere (n = 150) | Right Hemisphere (n = 150) | ||
|---|---|---|---|---|
| Yes | No | Yes | No | |
| MOG | 100 (150) | 0 (0) | 100 (150) | 0 (0) |
| POG | 100 (150) | 0 (0) | 100 (150) | 0 (0) |
| Posteromedial orbital lobule | 98.7 (148) | 1.3 (2) | 99.3 (149) | 0.7 (1) |
| Continuity of white matter from the orbitofrontal to the insular lobes | 98.7 (148) | 1.3 (2) | 98.7 (148) | 1.3 (2) |
| Apex shown as a laterally directed prominence | 92 (138) | 8 (12) | 90.7 (136) | 9.3 (14) |
| Apex bracketed between the anterior plane through the junctions of the anterior limbs of the internal capsules with the anteriormost external capsules and the posterior plane at VAC | 95.7 (132/138) | 4.3 (6/138) | 98.5 (134/136) | 1.5 (2/136) |
| Anterior plane defines the anterior border of the insula | 86 (129) | 14 (21) | 88.7 (133) | 11.3 (17) |
Note.—Data are percentages (number of hemispheres).