Search results for “multiple sclerosis”
5 results found
Article
Diffusion tensor imaging and fiber tractography
Diffusion tensor imaging (DTI) is an MRI technique that uses anisotropic diffusion to estimate the axonal (white matter) organization of the brain.
Fiber tractography (FT) is a 3D reconstruction technique to assess neural tracts using data collected by diffusion tensor imaging.
Diffusion-weigh...
Article
Phase-sensitive inversion recovery
Phase-sensitive inversion recovery (PSIR), also known as phase-corrected inversion recovery (PCIR), refers to an inversion recovery MRI pulse sequence that accounts for the positive and negative polarities and preserves the information of tissue magnetization during the recovery from the initial...
Article
Double inversion recovery sequence
Double inversion recovery (DIR) is an inversion recovery MRI pulse sequence that uses two different inversion pulses. The technique can be used to suppress signal from two different tissues or to suppress signal that moved between the two pulses.
In the first instance, used in neuroimaging, two...
Article
SPACE (MRI sequence)
The SPACE MRI sequence, is a spin echo type MRI sequence, which creates high spatial resolution three-dimensional datasets. SPACE is an abbreviation for Sampling Perfection with Application optimized Contrast using different flip angle Evolution. The sequence was developed by Siemens.
The SPACE...
Article
Axial plane for imaging of the brain
A consistent axial plane for imaging of the brain needs to be chosen to allow for reproducible image acquisition and comparison. Unlike the sagittal plane, which is intrinsically defined by our inherent left-right plane of symmetry, axial and coronal planes need to be agreed upon and over the ye...
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