scholarly journals A Magnetic-Resonance-Imaging-Compatible Remote Catheter Navigation System

2013 ◽  
Vol 60 (4) ◽  
pp. 899-905 ◽  
Author(s):  
M. A. Tavallaei ◽  
Y. Thakur ◽  
S. Haider ◽  
M. Drangova
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Navigation System ◽  
Resonance Imaging ◽  
Catheter Navigation

scholarly journals Intraoperative Real-Time Querying of White Matter Tracts During Frameless Stereotactic Neuronavigation

Neurosurgery ◽  
2011 ◽  
Vol 68 (2) ◽  
pp. 506-516 ◽  
Author(s):  
Haytham Elhawary ◽  
Haiying Liu ◽  
Pratik Patel ◽  
Isaiah Norton ◽  
Laura Rigolo ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
White Matter ◽  
Magnetic Resonance ◽  
Real Time ◽  
Navigation System ◽  
Diffusion Tensor ◽  
Tumor Resection ◽  
Resonance Imaging ◽  
Surgical Tool ◽  
Tractography Data

Abstract BACKGROUND: Brain surgery faces important challenges when trying to achieve maximum tumor resection while avoiding postoperative neurological deficits. OBJECTIVE: For surgeons to have optimal intraoperative information concerning white matter (WM) anatomy, we developed a platform that allows the intraoperative real-time querying of tractography data sets during frameless stereotactic neuronavigation. METHODS: Structural magnetic resonance imaging, functional magnetic resonance imaging, and diffusion tensor imaging were performed on 5 patients before they underwent lesion resection using neuronavigation. During the procedure, the tracked surgical tool tip position was transferred from the navigation system to the 3-dimensional Slicer software package, which used this position to seed the WM tracts around the tool tip location, rendering a geometric visualization of these tracts on the preoperative images previously loaded onto the navigation system. The clinical feasibility of this approach was evaluated in 5 cases of lesion resection. In addition, system performance was evaluated by measuring the latency between surgical tool tracking and visualization of the seeded WM tracts. RESULTS: Lesion resection was performed successfully in all 5 patients. The seeded WM tracts close to the lesion and other critical structures, as defined by the functional and structural images, were interactively visualized during the intervention to determine their spatial relationships relative to the lesion and critical cortical areas. Latency between tracking and visualization of tracts was less than a second for a fiducial radius size of 4 to 5 mm. CONCLUSION: Interactive tractography can provide an intuitive way to inspect critical WM tracts in the vicinity of the surgical region, allowing the surgeon to have increased intraoperative WM information to execute the planned surgical resection.

Tumor ablation therapy of liver cancers with an open magnetic resonance imaging-based navigation system

2008 ◽  
Vol 23 (5) ◽  
pp. 1048-1053 ◽  
Author(s):  
Takashi Maeda ◽  
Jaesung Hong ◽  
Kozo Konishi ◽  
Takanori Nakatsuji ◽  
Takefumi Yasunaga ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Navigation System ◽  
Tumor Ablation ◽  
Resonance Imaging ◽  
Ablation Therapy ◽  
Open Magnetic Resonance Imaging ◽  
Liver Cancers
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