Usefulness of 3D slicer for the planning and monitoring of hepatocellular carcinoma treatment using FUS
https://doi.org/10.1186/2050-5736-3-S1-O84
© Doba et al; licensee BioMed Central Ltd. 2015
Published: 30 June 2015
Keywords
Background/introduction
FUS is a noninvasive treatment method, as complete coagulation necrosis is achieved without the insertion of any instruments. However, FUS monitor has the poor visualization because of the presence of the multi-reflections, rib shadows and the emergence of the hyperecho after the FUS treatment. 3D Slicer imaging is a diagnostic imaging support system that can provide the same cross-sectional MPR images on the same monitor screen using DICOM volume data from MRI which are not influenced by those artifacts. The purpose of this study was to utilize an interventional navigation system designed for FUS assisted by 3D Slicer was proposed, and a phantom study was carried out to assess the proposed system.
Methods
The FUS system (Mianyang Haifu Tech) was used under ultrasound guidance. In this system, the open-source navigation software is connected together images using an open network communication protocol, OpenIGTLink. A Polaris Vicra optical tracker (Northern Digital, Ontario, Canada) was used. MRI scans (Signa HDX 3.0T system; GE Healthcare) were performed, and 3D Slicer was customized to combine MR images for the navigation.
Testing was performed using an abdominal phantom (CIRS Model057, Norfolk, VA).
Results and conclusions
The tumor therapy system. A 2-5 MHz imaging probe was positioned in the center of the FUS transducer and was mounted in a reservoir of degassed water. Phantom was positioned in contact with the degassed water.
An optical tracker (Northern Digital, Ontario, Canada) was attached outside of a reservoir of degassed water and followed by Polaris Vicra.
The cystic lesion of the phantom was depicted in the US monitor of the tumor therapy system.
3D slicer image of MRI with high intensity area was displayed in a manner resembling conventional monitor US to assist the FUS treatment.
Authors’ Affiliations
Copyright
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
