目的 探讨术中超声在颅脑手术中的应用价值。方法 应用超声辅助切除颅内占位性病变31例，开颅时实时定位,手术中示踪，关颅前评估手术效果。结果 本组术中超声定位检查31例，超声显示病变的大小、部位与术前CT、MRI 相吻合，根据超声提示能精确探查病变部位。结论 术中超声定位检查简单、有效、安全，有助于提高颅脑手术操作的精确性，减少了探查的盲目性，缩短了手术时间，更为重要的是能减小不必要的正常脑组织损伤，具有较大的临床应用价值。

Objective To investigate the application of ultrasound localization during craniocerebral operations. Methods Thirty-one cases with intracranial space occupying lesion were surgically treated with guidance of ultrasound, which was applied to real-time localization while revealing skull, tracing during operation and evaluation of the operation’s effect before locking up the skull. Results In our group, 31 cases were checked using ultrasound localization during operation. Ultrasound could level the lesion’s size and position, which was in accordance with the result of CT and MRI before operation. With the application of ultrasound localization, the lesion could be probed exactly. Conclusions Ultrasound localization during operation is simple, effective and secure, and is helpful to enhance the accuracy of the craniocerebral operations, reduce the blindly exploration, shorten the operation time, and what is more important, reduce unnecessary tissue damage of normal brain tissue, which obviously possess much clinical utilization.