作者
Lars Eirik Bø, Håkon Olav Leira, Geir Arne Tangen, Erlend Fagertun Hofstad, Tore Amundsen, Thomas Langø
发表日期
2012/1
期刊
Medical physics
卷号
39
期号
1
页码范围
399-406
出版商
American Association of Physicists in Medicine
简介
Purpose
The authors have studied the accuracy and robustness of a prototype electromagnetic window field generator (WFG) in an interventional radiology suite with a robotic C‐arm. The overall purpose is the development of guidance systems combining real‐time imaging with tracking of flexible instruments for bronchoscopy, laparoscopic ultrasound, endoluminal surgery, endovascular therapy, and spinal surgery.
Methods
The WFG has a torus shape, which facilitates x‐ray imaging through its centre. The authors compared the performance of the WFG to that of a standard field generator (SFG) under the influence of the C‐arm. Both accuracy and robustness measurements were performed with the C‐arm in different positions and poses.
Results
The system was deemed robust for both field generators, but the accuracy was notably influenced as the C‐arm was moved into the electromagnetic field. The SFG …
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LE Bø, HO Leira, GA Tangen, EF Hofstad, T Amundsen… - Medical physics, 2012