QMENTA Tools Catalog

Q-FiberMapper (Q-FM)

The Q-FiberMapper derives diffusion parameters for specific white matter fascicles in the brain using a combination diffusion-weighted magnetic resonance imaging (dMRI) and anatomical MRI information from a T1-weighted image. The tool segments 16 major white matter fascicles and estimates diffusion tensor parameters FA, MD, AD and RD for each.

The QFM reconstructs the left and right hemisphere counterparts of the following fascicles: cortico-spinal tract, inferior frontal-occipital fasciculus, inferior longitudinal fasciculus, uncinate fasciculus, superior longitudinal fasciculus, fornix. The forceps major and forceps minor are also reconstructed.

Key features:

  • Fascicle based WM segmentation and tensor parameters
    • fractional anisotropy – FA
    • mean diffusivity – MD
    • axial diffusivity – AD
    • radial diffusivity – RD
  • Includes a contralateral report comparing left and right hemisphere tracts
    • Contralateral difference
    • Asymmetry index
    • % asymmetry
Head & spine
Alzheimer's disease, Fronto-temporal dementia, Multiple sclerosis, Neurodevelopment, Neuroplasticity, Other dementias, Parkinson's disease, Traumatic brain injury
Fascicle based white matter segmentation and DWI quantification
Regulatory Clearance:
T1, dMRI (DTI or HARDI). Optional: Gradient field maps