Abstract
Ultrasound imaging provides real-time feedback for highly accurate positioning and dosing control. In addition, spatial restriction of high-intensity focused ultrasound (HIFU) transducer position in the ultrasound image-guided system is less than that in the case of MRI-guided system. Therefore, wider beam approaching path can be used in the ultrasound image-guided system. To shorten the total treatment time, reducing the cooling time between sonication intervals is essential. Using a wide approach path promotes a reduction in both the cooling time and the risk of heat deposition to the body surface. The array in our preclinical HIFU system is supported by a 5-axis robotic system that enables motion with a pivot fixed at the focal point. In this report, we describe a HIFU beam imaging system that provides highly accurate pivoting motion and coagulation monitoring in real-time for dose control during HIFU treatment.
Highlights
Background/introduction Ultrasound imaging provides real-time feedback for highly accurate positioning and dosing control
We describe a high-intensity focused ultrasound (HIFU) beam imaging system that provides highly accurate pivoting motion and coagulation monitoring in real-time for dose control during HIFU treatment
The accuracy of the pivoting motion in our prototype system was evaluated by measuring the precessional radius of the focal point
Summary
Preclinical ultrasound image-guided high intensity focused ultrasound robot system for breast cancer therapy Background/introduction Ultrasound imaging provides real-time feedback for highly accurate positioning and dosing control. Spatial restriction of high-intensity focused ultrasound (HIFU) transducer position in the ultrasound image-guided system is less than that in the case of MRI-guided system. Wider beam approaching path can be used in the ultrasound image-guided system.
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