HIFU Power Monitoring Using Combined Instantaneous Current and Voltage Measurement

• Published in: IEEE transactions on ultrasonics, ferroelectrics, and frequency control Vol. 67; no. 2; pp. 239 - 247
• Main Authors: Adams, Chris, McLaughlan, James R., Carpenter, Thomas M., Freear, Steven
• Format: Journal Article
• Language: English
• Published: United States IEEE 01.02.2020; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Acoustic measurements; Acoustic output measurement; Acoustics; Amplifiers; Animals; Chickens; Current measurement; Electric power; Electrical measurement; Electricity; Electricity generation; Equipment Design; Frequency control; high intensity focused ultrasound; High-Intensity Focused Ultrasound Ablation - instrumentation; High-Intensity Focused Ultrasound Ablation - methods; High-Intensity Focused Ultrasound Ablation - standards; Impedance; Instantaneous current; Magnetic resonance imaging; Magnetic Resonance Imaging - instrumentation; Magnetic Resonance Imaging - methods; Models, Biological; Monitoring; Muscle, Skeletal - radiation effects; power measurement; Reproducibility of Results; Switching theory; Transducers; ultrasonic transducers; Voltage measurement; Waveforms

During high-intensity focused ultrasound (HIFU) therapy, it is important that the electrical power delivered to the transducer is monitored to avoid underexposure or overexposure, ensure patient safety, and to protect the transducer itself. Due to ease of measurement, the transducer's potential...