Document Detail


Fixation, registration, and image-guided navigation using a thermoplastic facial mask in electromagnetic navigation-guided radiofrequency thermocoagulation.
MedLine Citation:
PMID:  20692190     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: For fixation, registration, and image-guided navigation, the aim of this study was to evaluate a thermoplastic facial mask with plastic markers in achieving frameless stereotactic radiofrequency thermocoagulation (RFT).
STUDY DESIGN: A thermoplastic facial mask was remolded according to each subject's face. Six markers were placed on the surface and 6 inside. Series of 1.25-mm- and 2.5-mm-slice computerized tomography (CT) scans were made to provide radiologic data. During the phantom study, each plastic sphere inside was selected in turn as the target for frameless stereotaxy. The clinical Hartel puncture of the foramen ovale (FO) was imitated using an electromagnetic navigation system. Navigation-guided RFT was tried in 3 patients.
RESULTS: The mean location error was 1.29 mm (SD ± 0.39 mm). No significant difference (P > .05) was proven between 1.25-mm and 2.5-mm CT slice acquisition for the image datasets used. The FO punctures in clinical trials were successful and confirmed by CT.
CONCLUSIONS: Registration and fixation via a fiducial marker-based thermoplastic facial mask is accurate and feasible for use in navigation-guided RFT.
Authors:
Min-jie Chen; Li-xu Gu; Wei-jie Zhang; Chi Yang; Jing Zhao; Zi-yang Shao; Bao-li Wang
Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-08-06
Journal Detail:
Title:  Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics     Volume:  110     ISSN:  1528-395X     ISO Abbreviation:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-09-27     Completed Date:  2011-01-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508562     Medline TA:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e43-8     Citation Subset:  D; IM    
Copyright Information:
Copyright © 2010 Mosby, Inc. All rights reserved.
Affiliation:
Department of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China.
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MeSH Terms
Descriptor/Qualifier:
Catheter Ablation / instrumentation*,  methods
Electromagnetic Phenomena
Female
Fiducial Markers*
Humans
Male
Masks*
Middle Aged
Neuronavigation / instrumentation*,  methods
Patient Positioning
Phantoms, Imaging*
Plastics
Sphenoid Bone / surgery
Tomography, Spiral Computed
Trigeminal Neuralgia / surgery*
Chemical
Reg. No./Substance:
0/Plastics

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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