Precise determination of regions of interest for hepatic RFA planning

Claire Baegert; Caroline Villard; Pascal Schreck; Luc Soler

doi:10.1117/12.708757

22 March 2007 Precise determination of regions of interest for hepatic RFA planning

Claire Baegert, Caroline Villard, Pascal Schreck, Luc Soler

Proceedings Volume 6509, Medical Imaging 2007: Visualization and Image-Guided Procedures; 650923 (2007) https://doi.org/10.1117/12.708757
Event: Medical Imaging, 2007, San Diego, CA, United States

Abstract

Percutaneous radiofrequency ablation is one of the most promising alternatives to open surgery for the treatment of liver cancer. This operation is a minimally invasive procedure that consists in inserting a needle in targeted tissues that are destroyed by heat. The success of such an operation mainly depends on the accuracy of the needle insertion, making it possible to destroy the whole tumor, while avoiding damages on other organs and minimizing risks of a local recurrence. We are developing a software that applies planning rules on patient-specific 3D reconstructions, in order to suggest relevant options for the choice of a path to the tumor, and that displays various information allowing to adjust the final choice. In this context we propose a method to compute automatically, quickly, and accurately, the possible insertion areas on the skin. Within these areas, an insertion of the probe targeting the tumor respects the numerous strong (boolean) constraints required for a radiofrequency ablation. Besides, these insertion zones define the research domain of the optimization process, taking into account soft constraints to refine the solutions. They are also displayed on the skin of the virtual patient to inform the physician about the different possibilities specific to each case, allowing him at the end of the automatic process, to modify interactively the proposed strategy, with a real-time update of the related information. We discuss in this paper about the importance of a precise delineation of these areas.

Citation Download Citation

Claire Baegert, Caroline Villard, Pascal Schreck, and Luc Soler "Precise determination of regions of interest for hepatic RFA planning", Proc. SPIE 6509, Medical Imaging 2007: Visualization and Image-Guided Procedures, 650923 (22 March 2007); https://doi.org/10.1117/12.708757

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