Abstract: Introduction: The efficacy of extracorporeal High Intensity Focused Ultrasound (HIFU) on bladder wall has been demonstrated. However, the treatment is still slow, needing about 15 min to treat 1 cm$+2$/. Objectives: Demonstrate the feasibility of HIFU with electronic scanning and reduce the during of HIFU treatments. Conclusions: Necrotic lesions on bladder posterior wall can be obtained with HIFU treatments using electronic scanning of the focal point. Average treatment duration with electronic scanning is reduced to 3 min 30 sec/cm$+2$/.!8
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机译：摘要：简介：体外高强度聚焦超声（HIFU）对膀胱壁的疗效已得到证实。但是，治疗仍然很慢，大约需要15分钟才能治疗1 cm $ + 2 $ /。目的：通过电子扫描证明HIFU的可行性，并减少HIFU治疗的时间。结论：HIFU治疗可通过对焦点进行电子扫描获得膀胱后壁坏死性病变。电子扫描的平均治疗时间减少到3分30秒/cm$+2$/.!8
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