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Related Experiment Video

Updated: May 16, 2026

Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications

Controllable Nucleation of Cavitation from Plasmonic Gold Nanoparticles for Enhancing High Intensity Focused Ultrasound Applications

Published on: October 5, 2018

[P-HIFU phased signal generator with highly precise timing function].

Yu Xiang¹, Jingfeng Bai

¹Biomedical Instrument Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.

Zhongguo Yi Liao Qi Xie Za Zhi = Chinese Journal of Medical Instrumentation

|November 30, 2012

Summary

This summary is machine-generated.

This study introduces a mode control module for phased-array systems, enhancing precise signal timing and enabling intermittent therapy modes. This innovation improves ultrasound therapy by reducing unintended tissue injury.

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Real-time Monitoring of High Intensity Focused Ultrasound (HIFU) Ablation of In Vitro Canine Livers Using Harmonic Motion Imaging for Focused Ultrasound (HMIFU)

Real-time Monitoring of High Intensity Focused Ultrasound (HIFU) Ablation of In Vitro Canine Livers Using Harmonic Motion Imaging for Focused Ultrasound (HMIFU)

Published on: November 3, 2015

Area of Science:

* Digital signal processing and phased-array technology.
* Medical device engineering and therapeutic ultrasound.

Context:

* Phased-array systems require precise control over signal timing for effective operation.
* Current ultrasound therapies can cause unintended injury to non-focal areas.

Purpose:

* To develop a mode control module for phased-array systems using digital sampling.
* To achieve precise timing control of phased signals and enable intermittent therapy modes.

Summary:

* A novel mode control module was integrated into a phased-array system, utilizing digital sampling technology.
* The module achieved a phase accuracy of 3.75 degrees and precise signal timing of 0.48 microseconds.
* Pre-configuration of signal parameters (phase, duration, interval, repeat times) ensures accurate phased signal output.

Impact:

* The enhanced system maintains original phase control functions while improving timing precision.
* Introduction of an intermittent therapy mode reduces ultrasound-induced injury in non-focal areas.
* Potential for more targeted and safer ultrasound-based medical treatments.