Robotic system for top to bottom MRgFUS therapy of multiple cancer types

xlomafota13 shared this article with you from Inoreader Robotic system for top to bottom MRgFUS therapy of multiple cancer types Via The International Journal of Medical Robotics and Computer Assisted Surgery ABSTRACT Background A robotic system for Magnetic Resonance guided Focused Ultrasound (MRgFUS) therapy of tumours in the breast, bone, thyroid, and abdomen was developed. Methods A special C-shaped structure was designed to be attached to the table of conventional MR imaging (MRI) systems carrying 4 computer-controlled motion stages dedicated to positioning a 2.75 MHz spherically focused transducer relative to a patient placed in the supine position. The developed system was evaluated for its MRI compatibility and heating abilities in agar-based phantoms and freshly excised tissue. Results Compatibility of the system with a clinical high-field MRI scanner was demonstrated. FUS heating in the phantom was successfully monitored by MR thermometry without any evidence of magnetically-induced phenomena. Cigar-shaped discrete lesions and well-defined areas of overlapping lesions were inflicted in excised tissue by robotic movement along grid patterns. Conclusions The developed MRgFUS robotic system was proven safe and efficient by ex-vivo feasibility studies. This article is protected by copyright. All rights reserved. View on the web Inoreader. Take back control of your news feed. Follow us on Twitter and Facebook.