High-Intensity Focused Ultrasound is a non-invasive ablation technique that utilises an external ultrasound transducer to converge multiple beams of low-energy ultrasound waves onto a target site within the body. Through instantaneous high-temperature effects, cavitation effects and mechanical effects, it induces coagulative necrosis in tumour tissue. The procedure requires no puncture or incision; the tissue structure along the ultrasound transmission path remains intact, truly achieving external focusing and precise in-vivo ablation. Intraoperative ultrasound monitoring tracks real-time changes in target area grey-scale, allowing immediate assessment of ablation efficacy, and the treatment can be repeated multiple times.
Completely non-invasive, preserving organ structure: No incisions are made on the body surface, normal anatomical layers are maintained, and puncture-related complications are avoided.
Real-time imaging monitoring with closed-loop feedback: Changes in ultrasound grey-scale directly reflect the degree of tissue denaturation, allowing for controllable ablation boundaries and outstanding safety.
No ionising radiation, suitable for repeated applications: Not subject to cumulative dose limitations, facilitating fractionated treatment or re-intervention following recurrence.
Primarily indicated for benign and malignant solid tumours such as uterine fibroids, adenomyosis, bone metastases and fibroadenomas of the breast. It is particularly suitable for patients unsuitable for surgery or those with a strong desire to preserve organ function, and has been extended to palliative debulking of solid tumours such as pancreatic cancer and prostate cancer.
