高分辨率平面电脑断层扫描分析超级尺度位置和电极接触方向:可行性研究
Ana Marija Sola1, Nicole T Jiam1, Melanie Gilbert1
1Department of Otolaryngology-Head and Neck Surgery, University of California, San Francisco, CA.
概括
高清平面CT成像 (FPCT) 允许在体内绘制耳植入物电极位置和方向. 这种新的方法提供了与解剖学相关的测量,以更好地了解电极放置.
科学领域:
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 医疗成像医学成像
- 生物医学工程 生物医学工程
背景情况:
- 精确的耳植入物 (CI) 电极放置对于听觉结果至关重要.
- 目前用于评估内位置和方向的方法有限.
研究的目的:
- 提出一种新的方法,使用体内高清平面计算机断层成像 (FPCT) 来确定CI电极内位置和方向.
- 建立一个描述电极接触方向性的模型.
主要方法:
- 在患有CIs的成年患者中,术后FPCT扫描的回顾性分析.
- 使用中模块图像切片和3D染来测量插入角度,内模块位置和电极接触方向.
- 定义的电极接触方向相对于modiolus和耳隔膜.
主要成果:
- 平均角度插入深度为494°.
- 从侧壁到电极的辐射距离随着深度的增加而减少.
- 基底接触的平均值为59°朝着耳隔膜,而顶端接触的平均值为28°朝着骨.
结论:
- FPCT可以在体内绘制CI电极定位和方向的地图.
- 测量结果符合解剖学预期,并为描述电极方向性提供了基础.
- 未来的研究将将这些成像发现与电生理学和心理物理结果相关联.
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