Article

Little is known about the usefulness and findings of brain
herniation on diffusion tensor tractography (DTT). Using DTT, we demonstrated
neural tract injuries in 2 patients who showed subfalcine and trasntentorial
herniations after subdural hematoma resulting from motor vehicle accident.
DESIGN: : Two patients and 6 age- and sex-matched, healthy volunteers were
recruited for this study. SETTING: : An inpatient rehabilitation unit.
OUTCOME MEASURES : Diffusion tensor tractography for the patients was performed
5 weeks after onset. RESULTS: : Diffusion tensor tractography of patient 1 showed
complete injury of both cingulums at or around the rostrum of the corpus
callosum, the fornix at the anterior and posterior body, and both corticospinal
tracts at the pons. In addition, partial injury of both somatosensory tracts at
the midbrain was also observed. Patient 2 showed complete injury of both
cingulums above the body of the corpus callosum, the fornix at the anterior and
posterior body, and right corticospinal tracts at the pons level and partial
injury of the right somatosensory tract. We found that the fractional anisotropy
values of all neural tracts, except fornix, in both patients and left
somatosensory tract in patient 2 and voxel number for left somatosensory tract in
patient 2 were decreased 2 SDs below that of normal controls. CONCLUSIONS: : We
determined that DTT would be a good technique for use in the detection of
underlying lesions in patients with brain herniation.

Langue : ANGLAIS