Diffusion QBall

Compute a diffusion qBall in each voxel of the input image (restricted by a mask if provided)

Description

Compute a diffusion QBall in each voxel with a non null T2 value (or in each voxel in the mask if a mask is used). The result is a "Bucket" file containing, for each voxel processed, the qball probability distribution.

Parameters

t2_diffusion: T2 Diffusion MR ( input )

T2 image extracted from diffusion raw data.

dw_diffusion: DW Diffusion MR ( input )

orientations: Choice ( input )

diffusion_model: QBall Model ( output )

mask: Diffusion Mask ( optional, input )

Binary mask used to limit the computed voxels. Voxels not in the mask (i.e. whose voxel value is zero) are ignored.

circle_point_count: Integer ( input )

Circle point count (default = 36) for the integration of the MR signal along an equator

maximum_alpha: Float ( input )

Maximum alpha in degrees for gaussian smoothing (default = 20.0) of the MR signal

alpha_deviation: Float ( input )

Alpha standard deviation in degrees (default = 10.0) for the gaussian smoothing of the MR signal

ascii: Boolean ( input )

Write bucket file in ascii

Technical information

Toolbox : Diffusion and Tracking

User level : 2

Identifier : DiffusionQBallModel

File name : brainvisa/toolboxes/connectomist/processes/Model pipeline components/DiffusionQBallModel.py

Supported file formats :

t2_diffusion :

GIS image, VIDA image, NIFTI-1 image, MINC image, gz compressed MINC image, DICOM image, TIFF image, XBM image, PBM image, PGM image, BMP image, XPM image, PPM image, gz compressed NIFTI-1 image, TIFF(.tif) image, ECAT i image, PNG image, JPEG image, MNG image, GIF image, SPM image, ECAT v image

dw_diffusion :

GIS image, VIDA image, NIFTI-1 image, MINC image, gz compressed MINC image, DICOM image, TIFF image, XBM image, PBM image, PGM image, BMP image, XPM image, PPM image, gz compressed NIFTI-1 image, TIFF(.tif) image, ECAT i image, PNG image, JPEG image, MNG image, GIF image, SPM image, ECAT v image

diffusion_model :

Bucket

mask :

GIS image, VIDA image, NIFTI-1 image, MINC image, gz compressed MINC image, DICOM image, TIFF image, XBM image, PBM image, PGM image, BMP image, XPM image, PPM image, gz compressed NIFTI-1 image, TIFF(.tif) image, ECAT i image, PNG image, JPEG image, MNG image, GIF image, SPM image, ECAT v image