Documentation/Nightly/Modules/BVeR

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Introduction and Acknowledgements

Extension: Brain Volume Refinement Webpage: http://dcm.ffclrp.usp.br/csim/ Authors: Antonio Carlos da S. Senra Filho, CSIM Laboratory (University of Sao Paulo, Department of Computing and Mathematics) Fabrício Henrique Simozo, CSIM Laboratory (University of Sao Paulo, Department of Computing and Mathematics) Prof. Luiz Otávio Murta Junior, CSIM Laboratory (University of Sao Paulo, Department of Computing and Mathematics) Contact: Antonio Carlos da S. Senra Filho, <email>acsenrafilho@usp.br</email>

CSIM Laboratory   University of Sao Paulo   CAPES Brazil

Module Description

This module offers an alternative to manual correction of brain volumes. The BVeR algorithm is suitable for a broad use of healthy brain structural MRI images, e.g. T1w and T2w, offering broad application in many large data analyses. The main contribution of the proposed method is related to the reduction of manual interference in the brain volume refinement after an automatic skull stripping procedure been performed, helping to reduce human errors and processing time. Even though the BVeR method does not provide a fully brain extraction algorithm, it can be helpful as a ad hoc image processing step in which increase the quality of well-known brain extraction algorithm in the literature. Any brain extracting frameworks can be refined with this method, e.g. FSL-BET, FreeSurfer, BEasT, 3DSkullStrip, ROBEX, OptiBET and many others.

Use Cases

• Use Case 1: Cortical thickness surface delineation.
  • When dealing with grey-matter overestimate due to badly brain extraction step.
• Use Case 2: Brain atrophy
  • Assist in the total brain volume estimate also reducing the non-brain tissues belonging outside the grey-matter tissue frontier.

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  T1 weighted MRI Image with FreeSurfer original brain mask overlay (only the out surface is represented)

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  Same T1 weighted MRI Image but with BVeR correction mask overlay (using the previous FreeSurfer input)

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  A simple 3D representation comparing FreeSurfer original brain mask (yellow dots frame) and BVeR output (light blue volume)

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  Same 3D representation but using a Lateral view

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  Same but illustrating the superior part of the brain volume.

Panels and their use

File:Bver icon.png

User Interface

Similar Modules

None

References

• Insight-Journal...