A rapid three-dimensional high intensity focused ultrasound beam plotting.

Area of Science:

• Medical Imaging
• Acoustic Engineering
• Ultrasound Technology

Background:

• Accurate visualization of High Intensity Focused Ultrasound (HIFU) energy distribution is crucial for therapeutic applications.
• Existing beam plotting methods can be time-consuming, limiting real-time analysis and system development.

Purpose of the Study:

• To develop a rapid three-dimensional (3D) beam plotting system for High Intensity Focused Ultrasound (HIFU).
• To enable efficient visualization of acoustic energy distribution in a 3D space.
• To evaluate the system's performance using a 1.1MHz HIFU transducer.

Main Methods:

• Utilized a 3D positioning system and data acquisition hardware for beam plotting.
• Performed 3D beam plots over a defined volume (5mm x 20mm x 5mm).
• Achieved a high spatial resolution of 0.2mm x 0.001mm x 0.2mm.

Main Results:

• Completed a 3D beam plot within approximately 30 minutes.
• Measured Full Width at Half Maximum (FWHM) dimensions of 12.51mm (axial) and 1.4mm (lateral).
• Demonstrated the system's capability for both 2D and 3D ultrasound beam pattern visualization.

Conclusions:

• The developed 3D HIFU beam plotting system significantly reduces scanning time.
• The system provides accurate visualization of acoustic energy distribution in 3D.
• This rapid plotting capability supports efficient HIFU system development and application planning.