Tracking of deformable target in 2D ultrasound images

Lucas Royer; Maud Marchal; Anthony Le Bras; Guillaume Dardenne; Alexandre Krupa

doi:10.1117/12.2078729

20 March 2015 Tracking of deformable target in 2D ultrasound images

Lucas Royer, Maud Marchal, Anthony Le Bras, Guillaume Dardenne, Alexandre Krupa

Proceedings Volume 9413, Medical Imaging 2015: Image Processing; 941336 (2015) https://doi.org/10.1117/12.2078729
Event: SPIE Medical Imaging, 2015, Orlando, Florida, United States

Abstract

In this paper, we propose a novel approach for automatically tracking deformable target within 2D ultrasound images. Our approach uses only dense information combined with a physically-based model and has therefore the advantage of not using any fiducial marker nor a priori knowledge on the anatomical environment. The physical model is represented by a mass-spring damper system driven by different types of forces where the external forces are obtained by maximizing image similarity metric between a reference target and a deformed target across the time. This deformation is represented by a parametric warping model where the optimal parameters are estimated from the intensity variation. This warping function is well-suited to represent localized deformations in the ultrasound images because it directly links the forces applied on each mass with the motion of all the pixels in its vicinity. The internal forces constrain the deformation to physically plausible motions, and reduce the sensitivity to the speckle noise. The approach was validated on simulated and real data, both for rigid and free-form motions of soft tissues. The results are very promising since the deformable target could be tracked with a good accuracy for both types of motion. Our approach opens novel possibilities for computer-assisted interventions where deformable organs are involved and could be used as a new tool for interactive tracking of soft tissues in ultrasound images.

Citation Download Citation

Lucas Royer, Maud Marchal, Anthony Le Bras, Guillaume Dardenne, and Alexandre Krupa "Tracking of deformable target in 2D ultrasound images", Proc. SPIE 9413, Medical Imaging 2015: Image Processing, 941336 (20 March 2015); https://doi.org/10.1117/12.2078729

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available