scholarly journals Image-guided Electromagnetic Navigation System-assisted Endoscopic Endonasal Dacryocystorhinostomy: Advantages and a New Technique

2019 ◽  
Vol 58 (1) ◽  
pp. 14-24
Author(s):  
Shin Takahashi ◽  
Kana Takahashi ◽  
Toru Suzuki
2001 ◽  
Vol 143 (9) ◽  
pp. 927-934 ◽  
Author(s):  
O. Suess ◽  
Th. Kombos ◽  
R. Kurth ◽  
S. Suess ◽  
S. Mularski ◽  
...  

2019 ◽  
Vol 128 (10) ◽  
pp. 894-902 ◽  
Author(s):  
Julia Kristin ◽  
Manuel Burggraf ◽  
Dirk Mucha ◽  
Christoph Malolepszy ◽  
Silvan Anderssohn ◽  
...  

Objective: Navigation systems create a connection between imaging data and intraoperative situs, allowing the surgeon to consistently determine the location of instruments and patient anatomy during the surgical procedure. The best results regarding the target registration error (measurement uncertainty) are normally demonstrated using fiducials. This study aimed at investigating a new registration strategy for an electromagnetic navigation device. Methods: For evaluation of an electromagnetic navigation system and comparison of registration with screw markers and automatic registration, we are calculating the target registration error in the region of the paranasal sinuses/anterior and lateral skull base with the use of an electromagnetic navigation system and intraoperative digital volume tomography (cone-beam computed tomography). We carried out 10 registrations on a head model (total n = 150 measurements) and 10 registrations on 4 temporal bone specimens (total n = 160 measurements). Results: All in all, the automatic registration was easy to perform. For the models that were used, a significant difference between an automatic registration and the registration on fiducials was evident for just a limited number of screws. Furthermore, the observed differences varied in terms of the preferential registration procedure. Conclusion: The automatic registration strategy seems to be an alternative to the established methods in artificial and cadaver models of intraoperative scenarios. Using intraoperative imaging, there is an option to resort to this kind of registration as needed.


2019 ◽  
Vol 30 (2) ◽  
pp. 943-949 ◽  
Author(s):  
Benjamin Moulin ◽  
Lambros Tselikas ◽  
Thierry De Baere ◽  
Florent Varin ◽  
Abdellahi Abed ◽  
...  

1995 ◽  
Vol 36 (1) ◽  
pp. 100-101 ◽  
Author(s):  
W. D. Jeans ◽  
H. O. Leven

Peripheral vascular lesions may be inaccessible to treatment using catheter techniques. Ultrasound imaging in combination with Doppler may identify such lesions and provide possibilities for image-guided compression, injection of embolizing material by direct puncture, or both.


2015 ◽  
Vol 51 (4) ◽  
pp. 1-7 ◽  
Author(s):  
Gwangjun Go ◽  
Hyunchul Choi ◽  
Semi Jeong ◽  
Cheong Lee ◽  
Seong Young Ko ◽  
...  

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