Impact of a computer assisted navigation system on radiation exposure during pediatric ablation procedures

2007 ◽  
Vol 19 (2) ◽  
pp. 121-127 ◽  
Author(s):  
Andrew L. Papez ◽  
Mohamad al-Ahdab ◽  
Macdonald Dick ◽  
Peter S. Fischbach
Keyword(s):  
Radiation Exposure ◽  
Navigation System ◽  
Computer Assisted ◽  
Assisted Navigation

scholarly journals Stereotactic image‐guided microwave ablation of hepatocellular carcinoma using a computer‐assisted navigation system

2019 ◽  
Vol 39 (10) ◽  
pp. 1975-1985 ◽  
Author(s):  
Anja Lachenmayer ◽  
Pascale Tinguely ◽  
Martin H. Maurer ◽  
Lorenz Frehner ◽  
Marina Knöpfli ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Navigation System ◽  
Microwave Ablation ◽  
Computer Assisted ◽  
Assisted Navigation ◽  
Image Guided

scholarly journals Initial Results of an Acetabular Center Axis Registration Technique in Navigated Hip Arthroplasty with Deformed Acetabular Rims

2016 ◽  
Vol 10 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Hiroshi Wada ◽  
Hajime Mishima ◽  
Tomohiro Yoshizawa ◽  
Hisashi Sugaya ◽  
Tomofumi Nishino ◽  
...  
Keyword(s):  
Hip Arthroplasty ◽  
Navigation System ◽  
Ct Images ◽  
Computer Assisted ◽  
Assisted Navigation ◽  
True Value ◽  
Imageless Navigation ◽  
Acetabular Morphology ◽  
Subcutaneous Tissues ◽  
Center Axis

BackgroundIn cementless total hip arthroplasty, imageless computer-assisted navigation is usually used to register the anterior pelvic plane (APP). The accuracy of this method is influenced by the subcutaneous tissues overlying the registration landmarks. On the other hand, the acetabular center axis (ACA) is determined from the acetabular rim. Precise registration of the ACA is possible because of direct palpation using a pointer. Imageless navigation using the ACA usually targets patients with normal acetabular morphology. The aim of this study was to investigate the accuracy of imageless navigation using the ACA instead of the APP in patients with normal or deformed acetabular rims.MethodsThe intraoperative cup position was compared with that obtained from the postoperative computed tomography (CT) images in 18 cases.ResultsThe inclination angle derived from the navigation system was 3.4 ± 5.3 degrees smaller and the anteversion angle was 1.4 ± 3.1 degrees larger than those derived from the CT images.ConclusionThe inclination cup angle of the navigation system was significantly inferior to the true value, particularly in cases with large anterior osteophytes.

Application of Computer-Assisted Navigation System in Acute Zygomatic Fractures

2019 ◽  
Vol 82 ◽  
pp. S53-S58 ◽  
Author(s):  
Cristhiam Yang ◽  
Min-Chao Lee ◽  
Chun-Hao Pan ◽  
Chih-hao Chen ◽  
Chien-Tzung Chen
Keyword(s):  
Navigation System ◽  
Computer Assisted ◽  
Assisted Navigation ◽  
Zygomatic Fractures
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