DTI (Diffusion Tensor Imaging)


Proving the details of a traumatic brain injury (TBI) has been elusive in the past. Most evidence of Traumatic Brain Injuries is invisible in a routine MRI, that is because routine MRI cannot detect white matter injury that causes water to leak from neural tracts. However, state-of-the-art advanced brain MRI known as DTI (Diffusion Tensor Imaging) can accurately detect and document subtle injuries that interfere with the normal functioning of the operating circuits of the brain. At NIMA, we use DTI data and FDA-approved software to provide 3D color tractogram that illustrate where the brain has suffered white matter injury that causes water to leak from neural tracts, which has been associated with impairment.
DTI is in more than 20,000 peer-reviewed publications and courts throughout the United States are admitting DTI into evidence and allowing expert testimony based on it. DTI has been ruled admissible under Daubert and similar standards in numerous State and Federal Courts.
Many neuroradiologists can only comment on anatomic findings. They do not see patients and can only warrant a clinical correlation. A neurosurgeon practices clinically and trained in understanding the analysis of a DTI. A neurosurgeon practices clinically and has a higher level of skills and training for the interpretation for brain images. A neurosurgeon can comment on clinical correlation between the patient’s symptoms and the findings on a DTI scan. At NIMA, you will see a neurosurgeon and the inventor of DTI (U.S. Patent - 5,560,360), Dr. Aaron G. Filler, MD, Ph.D.
Dr. Filler's proprietary DTI protocol examines and measures over 35 separate brain locations and provide specific data showing the statistical significance of each abnormal finding, and correlates with patient's report of symptoms that commenced at the time of the injury. For instance, an injury in the fornix can impair new memory formation, an injury in the hippocampal cingulum impairs attention, an injury in the middle cerebellar peduncle can cause vertigo and balance problems, injury of the basal forebrain can cause insomnia, injury to the “thinking” part of the brain in the frontal lobe, injury to long inter-connecting paths in the brain critical to speech formation, and normal conversation. None of these are even tested for in many neuroradiology reports of DTI.
NIMA’s Comprehensive DTI exam report include:
  • Brain Tractography (DTI scan)
  • Quantitative analysis of 7-sequences with 10+ series
  • Clinical Interpretation of DTI scan
  • Reading with measurements of fractional anisotropy (FA) values
  • Brain Images indicating injury
  • Examines more than 35 separate brain locations and correlate patients' symptoms that commenced at the time of the injury with findings.
  • 3-Dimensional video of advanced tractography of the memory circuit
  • Comprehensive DTI Report (40+ pages with images) backed by references and publications.
Request an appointment
with Dr. Aaron G Filler
Please note that all fields are mandatory. For fastest service, please call us at 310-314-6410 between 9AM-5PM Pacific.