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A Multicenter MRI Protocol for the Evaluation and Quantification of Deep Vein Thrombosis

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Computer-assisted venous thrombosis volume quantification.

John Puentes¹, Mounir Dhibi, Luc Bressollette

¹Image and Information Processing Department, Institut TELECOM, TELECOM Bretagne, Brest 29238, France. john.puentes@telecom-bretagne.eu

IEEE Transactions on Information Technology in Biomedicine : a Publication of the IEEE Engineering in Medicine and Biology Society

|March 11, 2009

Summary

This summary is machine-generated.

This study introduces an advanced method for assessing venous thrombosis (VT) volume using ultrasound (US) imaging. The new technique improves accuracy by combining image filtering and deformable contours, reducing errors from manual estimations.

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Area of Science:

Medical Imaging
Biomedical Engineering
Computational Anatomy

Background:

Accurate venous thrombosis (VT) volume assessment is crucial for monitoring treatment efficacy and predicting life-threatening complications.
Current manual VT volume estimation methods using ultrasound (US) images are prone to significant errors due to shape assumptions.

Purpose of the Study:

To develop and evaluate a comprehensive, accurate method for VT volume calculation from freehand 2-D US image sequences.
To improve upon existing manual delineation techniques for VT volume estimation.

Main Methods:

A novel approach combining robust anisotropic diffusion filtering and deformable contours for VT segmentation.
Integration into a system prototype compatible with clinical US machines, including 3-D position tracking and Delaunay triangulation for volume calculation.
Predefined parameter sets to enhance system usability.

Main Results:

The proposed method demonstrated significantly improved accuracy in VT volume calculation compared to manual and tetrahedron-based methods.
Experimental results showed a mean difference of 16–35 mm³ for VT volumes ranging from 655 to 2826 mm³.
In vivo VT volumes were calculated, showcasing potential clinical applicability.

Conclusions:

The developed functional approach offers a more accurate and reliable method for VT volume assessment using US imaging.
This technique has the potential to enhance clinical decision-making in managing venous thrombosis.
The system's usability is improved through predefined parameters and compatibility with existing US equipment.