Radiologists are now able to look at parts of the brain using diffusion
tensor imaging (DTI) that are rarely visible with any other imaging
method, according to a study performed at Beth Israel Deaconess Medical
Center in Boston, MA.
“DTI data was available in 179 cases. DTI
is a technique that measures diffusion in a series of different spatial
directions (XYZ). We used DTI to evaluate the white matter anatomy
(layer found beneath the outer layer of the brain),” said Fargol Booya,
MD, lead author of the study. “Based on the pattern of color changes,
we could somewhat predict whether white matter tracts were displaced.
Evaluation of white matter anatomy is usually not possible with any
other imaging method. Tumor (21 patients), hemorrhage (15 patients) and
infarction (27 patients) had different manifestations on DTI,” she said.
“This method offers an overall view of brain anatomy, including the
degree of connectivity between the different regions of the brain.
Characterization of sensorimotor pathways or language center
involvement by acute ischemic insults has a strong correspondence to
clinical symptoms, prognosis and long-term management,” said Dr. Booya.
“There are advantages of DTI in every day practice such as determining
prognosis, improving characterization of white matter lesions and
preoperative planning,” she said.
-- News release courtesy of The American
Roentgen Ray Society (ARRS)