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Direct visualization of fiber information by coherence

  • Original Article
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International Journal of Computer Assisted Radiology and Surgery Aims and scope Submit manuscript

Abstract

Purpose

The structure of fiber tracts in DT-MRI data presents a challenging problem for visualization and analysis. We derive visualization of such traces from a local coherence measure and achieve much improved visual segmentation.

Methods

We introduce a coherence measure defined for fiber tracts. This quantitative assessment is based on infinitesimal deviations of neighboring tracts and allows identification and segmentation of coherent fiber regions. We use a hardware-accelerated implementation to achieve interactive visualization on slices and provide several approaches to visualize coherence information. Furthermore, we enhance existing techniques by combining them with coherence.

Results

We demonstrate our method on both a canine heart, where the myocardial structure is visualized, and a human brain, where we achieve detailed visualization of major and minor fiber bundles in a quality similar to and exceeding fiber clustering approaches.

Conclusions

Our approach allows detailed and fast visual- ization of important anatomical structures in DT-MRI data sets.

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Correspondence to Mario Hlawitschka.

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Hlawitschka, M., Garth, C., Tricoche, X. et al. Direct visualization of fiber information by coherence. Int J CARS 5, 125–131 (2010). https://doi.org/10.1007/s11548-009-0302-5

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  • DOI: https://doi.org/10.1007/s11548-009-0302-5

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