目的：探讨腹腔镜超声检查技术(LUS)和腹腔镜超声刀在腹腔镜胃肠外科手术中的应用价值。

Objective: To study the value of laparoscopic ultrasonography (LUS) and harmonic scalpel in the gastrointestinal laparoscopic surgery.

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方法：应用超声刀，腹腔镜下缝合打结技术进行腹腔镜下肝叶切除5例。

Methods:With the ultrasonic knife, laparoscopic hepatolobectomy was performed in 5 cases.

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