Software that controls a magnetic resonance imaging compatible robotic system for guiding high-intensity focused ultrasound therapy

Abstract

ABSTRACT Background and Objectives: This study describes a software application for controlling a focused ultrasound system that was guided by magnetic resonance imaging (MRI). Materials and Methods: The software's functionalities were tested using a custom-made electronic system, MRI compatible robotic systems, and a high-intensity focused ultrasound (HIFU) system. The experiments were conducted in gel phantoms to test the motion accuracy and functionality of the system. Results: The software includes the following functionalities: (a) patient database (patient identification number, age, weight, gender, etc.); (b) acquisition of MRI images; (c) transducer movement; (d) transducer coordinates; (e) ultrasound control; (f) MRI thermometry; (h) temperature measurement with thermocouple; (i) command history (command name, starting time, and remaining time); and (j) MRI compatible camera. Evaluation experiments were conducted to test the software for accuracy, functionality, and communication with MRI. Conclusions: User-friendly software was developed to control an MRI-guided HIFU system. The software was evaluated in phantom experiments and it was found to accomplish all the intended functions.