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|Title:||MRI guided focused ultrasound robotic system for animal experiments||Authors:||Yiannakou, Marinos
Damianou, Christakis A.
|Issue Date:||1-Jan-2017||Publisher:||John Wiley and Sons Ltd||Source:||International Journal of Medical Robotics and Computer Assisted Surgery, 2017||Abstract:||Background: In this paper an MRI-guided focused ultrasound (MRgFUS) robotic system was developed that can be used for conducting experiments in small animals.The target for this robotic system regarding motion was to move a therapeutic ultrasound transducer in two Cartesian axes. Methods: A single element spherically focused transducer of 3 cm diameter, focusing at 7 cm and operating at 0.4 MHz was used. The positioning device incorporates only MRI compatible materials. The propagation of ultrasound is a bottom to top approach. The 2-D positioning device is controlled by custom-made software and a custom-made electronic system which controls the two piezoelectric motors. Results: The system was tested successfully in agar/silica/evaporated milk phantom for various tasks (robot motion, MR compatibility, and MR thermometry). The robotic system is capable of moving the focused ultrasound transducer to perform MR-guided focused ultrasound experiments in small animals. Conclusions: This system has the potential to be deployed as a cost effective solution for performing experiments in small animals.||URI:||http://ktisis.cut.ac.cy/handle/10488/10078||ISSN:||14785951||Rights:||© 2017 John Wiley & Sons, Ltd.|
|Appears in Collections:||Άρθρα/Articles|
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