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. 2011 Jul;79(1):56-9.
doi: 10.1016/j.ejrad.2009.12.034. Epub 2010 Feb 8.

Ultrasound-guided High-Intensity Focused Ultrasound Treatment for Abdominal Wall Endometriosis: Preliminary Results

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Ultrasound-guided High-Intensity Focused Ultrasound Treatment for Abdominal Wall Endometriosis: Preliminary Results

Yang Wang et al. Eur J Radiol. .

Abstract

Purpose: To evaluate the safety and therapeutic efficacy of ultrasound (US)-guided high-intensity focused ultrasound (HIFU) ablation for the treatment of abdominal wall endometriosis (AWE).

Materials and methods: Twenty-one consecutive patients with AWE were treated as outpatients by US-guided HIFU ablation under conscious sedation. The median size of the AWE was 2.4 cm (range 1.0-5.3 cm). An acoustic power of 200-420 W was used, intermittent HIFU exposure of 1s was applied. Treatment was considered complete when the entire nodule and its nearby 1cm margin become hyperechoic on US. Pain relief after HIFU ablation was observed and the treated nodule received serial US examinations during follow-up.

Results: All AWE was successfully ablated after one session of HIFU ablation, the ablation time lasted for 5-48 min (median 13 min), no major complications occurred. The cyclic pain disappeared in all patients during a mean follow-up of 18.7 months (range 3-31 months). The treated nodules gradually shank over time, 16 nodules became unnoticeable on US during follow-up.

Conclusion: US-guided HIFU ablation appears to be safe and effective for the treatment of AWE.

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