Development of a 3D ultrasound-guided system for thermal ablation of liver tumors

Hamid R.S. Neshat; Derek W. Cool; Kevin Barker; Lori Gardi; Nirmal Kakani; Aaron Fenster

doi:10.1117/12.2007503

14 March 2013 Development of a 3D ultrasound-guided system for thermal ablation of liver tumors

Hamid R.S. Neshat, Derek W. Cool, Kevin Barker, Lori Gardi, Nirmal Kakani, Aaron Fenster

Author Affiliations +

Proceedings Volume 8671, Medical Imaging 2013: Image-Guided Procedures, Robotic Interventions, and Modeling; 86711D (2013) https://doi.org/10.1117/12.2007503
Event: SPIE Medical Imaging, 2013, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

Two-dimensional ultrasound (2D US) imaging is commonly used for diagnostic and intraoperative guidance of interventional abdominal procedures including percutaneous thermal ablation of focal liver tumors with radiofrequency (RF) or microwave (MW) induced energy. However, in many situations 2D US may not provide enough anatomical detail and guidance information. Therefore, intra-procedural CT or MR imaging are used in many centers for guidance purposes. These modalities are costly and are mainly utilized to confirm tool placement rather than guiding the insertion. Three-dimensional ultrasound (3D US) has been introduced to address these issues. In this paper, we present our integrated solution to provide 3D US images using a newly developed mechanical transducer with a large field-ofview and without the need for external tracking devices to combine diagnostic and planning information of different modalities for intraoperative guidance. The system provides tools to segment the target(s), plan the treatment, and detect the ablation applicators during the procedure for guiding purposes. We present experimental results used to ensure that our system generates accurate measurements and our early clinical evaluation results. The results suggest that 3D US used for focal liver ablation can provide a more reliable planning and guidance tool compared to 2D US only, and in many cases offers comparable measurements to other alternatives at significantly lower cost, faster time and with no harmful radiation.

Citation Download Citation

Hamid R.S. Neshat, Derek W. Cool, Kevin Barker, Lori Gardi, Nirmal Kakani, and Aaron Fenster "Development of a 3D ultrasound-guided system for thermal ablation of liver tumors", Proc. SPIE 8671, Medical Imaging 2013: Image-Guided Procedures, Robotic Interventions, and Modeling, 86711D (14 March 2013); https://doi.org/10.1117/12.2007503

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KEYWORDS

3D image processing

Tumors

Computed tomography

3D metrology

Liver

Transducers

3D scanning

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