优化多个主体内耳MRI的空间规范化:比较不同的几何维护协同注册方法
Johannes Gerb1,2, Valerie Kirsch3,4,5, Emilie Kierig3,5
1German Center for Vertigo and Balance Disorders (DSGZ), LMU University Hospital, Ludwig-Maximilians-University (LMU) Munich, Marchioninistraße 15, 81377, Munich, Germany. Johannes.Gerb@med.uni-muenchen.de.
Scientific reports
|February 21, 2025
概括
准确地记录内耳成像数据是很困难的. 一种新的面具辅助自动方法 (TIE) 显示了最好的结果,改善了未来研究的空间规范化.
科学领域:
- 医疗成像医学成像
- 神经成像是一种神经成像.
- 人体解剖学 解剖学 解剖学
背景情况:
- 多个主体内耳成像数据的空间规范化存在挑战,原因是显著的个体变化和器官的小尺寸.
- 标准的全脑联合注册只提供了外围前庭末端器官的粗略对齐,需要耗时的手动调整.
研究的目的:
- 为了比较四种维护几何空间规范化方法对内耳成像数据的准确性.
- 确定最有效的方法,以精确地将内耳与图谱共同记录.
主要方法:
- 四种方法进行了比较:一种半手动的三点基准方法 (3P) 和三个自动方法,包括高级规范化工具 (ANTs),Elastix (EL) 和一种新的厚内耳 (TIE) 面具辅助方法.
- 来自153个内耳的高分辨率T2加权MRI数据被注册到内耳图谱中.
- 注册的准确性被盲目的神经病学家评估,并使用局部化分析量化.
主要成果:
- 面具辅助自动接近 (TIE) 实现了最佳准确度 (2.21 ± 1.15),其次是半手动的3P方法 (2.58 ± 0.61).
- 3P方法的注册不足率最低 (3.70%),TIE也表现良好 (8.28%).
- TIE与亚特拉斯显示出卓越的同居性,并与3P一起,确保了半圆形通道的足够可视化.
结论:
- 使用自动化方法,可以实现内耳成像数据的空间规范化.
- TIE方法提供了一个有希望的,准确的,高效的替代手动注册.
- 这些进展可以使未来的内耳和骨形态的小组检查成为可能.
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