Related Experiment Video
Updated: Apr 27, 2026

Advanced Diffusion Imaging in The Hippocampus of Rats with Mild Traumatic Brain Injury
Published on: August 14, 2019
POAS4SPM: a toolbox for SPM to denoise diffusion MRI data
Karsten Tabelow1, Siawoosh Mohammadi, Nikolaus Weiskopf
1WIAS Berlin, Mohrenstr. 39, 10117, Berlin, Germany, karsten.tabelow@wias-berlin.de.
Abstract:
We present an implementation of a recently developed noise reduction algorithm for dMRI data, called multi-shell position orientation adaptive smoothing (msPOAS), as a toolbox for SPM. The method intrinsically adapts to the structures of different size and shape in dMRI and hence avoids blurring typically observed in non-adaptive smoothing. We give examples for the usage of the toolbox and explain the determination of experiment-dependent parameters for an optimal performance of msPOAS.
Related Concept Videos
Assessment of Diffusion and Perfusion
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

