Normally when patients undergo corrective laser eye surgery, surgeons use video cameras to track the position of the eye so that the surgical laser targets the right place on the cornea.
通常情况下，医生在对病人进行激光眼科校正手术时使用视频摄像机来跟踪眼球的转动，以便使激光手术刀落在正确的地方。
Surgery is the main treatment for ureteral polyps and a correct choice of the surgical approach should be decided by the lesion size, Numbers, position and loss degree of renal unit function.
输尿管息肉的治疗以手术为主，应根据息肉的大小、数量、部位及肾脏受累程度选择单纯切除术、输尿管部分切除术和肾盂成形术等。
Treatment procedures included surgical exposure of the high positioned canine, followed by bonding with a lingual button, and orthodontic traction the impacted canine to the proper position.
治疗时先以开窗手术露出此高位的犬齿牙冠后，黏上钮扣然后施予轻微的矫正力量牵引阻生犬齿至正常的位置。
Patients placed in the sitting position for a surgical procedure may become hypotensive, especially if hypovolemic.
作为手术的病人容易发生低血压，特别是容量不足时。
To mornitor the hemodynamics of the surgical patients on flexed lateral decubitus position under epidural block or general anesthesia.
为了使肾结石肾盂切开取石手术的患侧肾脏更加有效地暴露于术野，常采用健侧侧卧升桥位。
The experiments of error analysis in our WATO system demonstrate that the position and related calibration technologies have a high precision and can satisfy surgical requirement.
并通过在自己研制的WATO机器人辅助手术系统上的模拟误差分析实验证明了所分析关键技术具有较高的精确度，符合手术的基本要求。
Methods:8 cases with maxillary sinus aspergillosis were proformed by surgical speciment and histological examination. All were examinated by stand or sited position X-ray plain film and axial CT scan.
方法：经手术和病理诊断的上颌窦曲菌病8例，均照有站立或坐位平片和轴位CT扫描。
Methods:8 cases with maxillary sinus aspergillosis were proformed by surgical speciment and histological examination. All were examinated by stand or sited position X-ray plain film and axial CT scan.
方法：经手术和病理诊断的上颌窦曲菌病8例，均照有站立或坐位平片和轴位CT扫描。
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