Overview of the most important findings by fMRI and DT tractography in each subject
| No. | PMA on fMRI | Fiber Tracts on fMRI-Driven DT Tractography |
|---|---|---|
| 1 | Healthy volunteer: PMAs of hand, foot, and lip on both sides at known anatomic position | Hand, foot, and lip fibers on both sides at known anatomic position |
| 2 | PMA of hand displaced laterally and caudally by tumor | Hand fibers on tumor side displaced compared with healthy side, visualization of lip fibers only on healthy side |
| 3 | PMA of hand and foot displaced by tumor and in area of decreased signal intensity on T1WI | Hand and foot fibers displaced on tumor side, run through area of altered signal intensity on T1WI |
| 4 | PMA at distance from lesion | Hand fibers run very close to tumor border, lip fibers visualized only on healthy side |
| 5 | PMA of hand and foot in area of altered signal intensity on T1WI, near tumors | Hand fibers normal course, foot fibers run through area of altered signal intensity on T1WI, close to tumor |
| 6 | PMA of hand displaced cranially and dorsally | Hand fibers displaced by tumor |
| 7 | PMA not displaced and not related to tumor border | Hand fibers not displaced |
| 8 | PMA not displaced and not related to tumor border | Hand and foot fibers not displaced |
| 9 | PMA not displaced and not related to tumor border | Hand and foot fibers not displaced |
| 10 | PMA not displaced and not related to AVM border | Hand fibers not displaced, visualization of lip fibers on both sides |
Note:—T1WI indicates T1-weighted images; AVM, arteriovenous malformation.