基于模板的图像引导颅底手术配准
Template-based registration for image-guided skull base surgery.
作者信息
Eggers Georg, Mühling Joachim
机构信息
Department of Oral and Cranio-Maxillofacial Surgery, Heidelberg University Hospital, Heidelberg, Germany.
出版信息
Otolaryngol Head Neck Surg. 2007 Jun;136(6):907-13. doi: 10.1016/j.otohns.2006.12.021.
OBJECTIVES
To evaluate whether patient-to-image registration with the use of a maxillary template is sufficiently accurate for image guided skull base surgery.
STUDY DESIGN AND SETTING
In an experimental phantom study, pair-point registration of a skull phantom to its CT image data was performed with 243 different configurations of a maxillary template with markers. Then artificial skull mounted target markers were located with an infrared tracking device as used in navigation systems.
RESULTS
The average target registration error was 1.57 mm in the anterior skull base (95% confidence interval, 1.53 to 1.61 mm), but 3.31 mm in the lateral skull base (95% confidence interval, 3.26 to 3.37 mm).
CONCLUSIONS
Fiducial marker registration based on a maxillary template is sufficiently accurate for image-guided surgery in the anterior skull base, but not for the lateral skull base.
SIGNIFICANCE
Template-based registration is an accurate yet noninvasive registration method for frontal skull base surgery.
目的
评估使用上颌模板进行患者与图像配准对于图像引导的颅底手术是否足够准确。
研究设计与设置
在一项实验性体模研究中，使用带有标记物的上颌模板的243种不同配置，对颅骨体模与其CT图像数据进行点对点配准。然后，使用导航系统中使用的红外跟踪设备定位人工颅骨上安装的目标标记物。
结果
前颅底的平均目标配准误差为1.57毫米（95%置信区间，1.53至1.61毫米），但侧颅底为3.31毫米（95%置信区间，3.26至3.37毫米）。
结论
基于上颌模板的基准标记物配准对于前颅底的图像引导手术足够准确，但对于侧颅底则不准确。
意义
基于模板的配准是一种用于额颅底手术的准确且无创的配准方法。
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