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Real-time computed tomography image update for endoscopic skull base surgery

Published online by Cambridge University Press:  16 August 2007

B A Woodworth ,
A G Chiu ,
N A Cohen ,
D W Kennedy ,
B W O'Malley Jr  and
J N Palmer
B A Woodworth
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
A G Chiu
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
N A Cohen
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
D W Kennedy
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
B W O'Malley Jr
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
J N Palmer*
Affiliation:
Department of Otorhinolaryngology – Head and Neck Surgery, University of Pennsylvania Health System, Philadelphia, Pennsylvania, USA
*
Address for correspondence: Dr James N Palmer, Division of Rhinology, Dept of ORL:HNS, 3400 Spruce Street, Philadelphia, PA 19104, USA. Fax: (215) 614 0071 E-mail: James.Palmer@uphs.upenn.edu
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Abstract

Introduction:

The development of computer-aided systems for endoscopic sinus surgery has enabled surgical navigation through diseased or surgically altered sinus anatomy with increased confidence. However, conventional computer-aided systems do not provide intra-operative updated computed tomography imaging. We describe the technical aspects of the xCAT™, a new intra-operative mobile volume computed tomography scanner.

Technical report:

A patient with a malignant melanoma unwittingly removed at another hospital underwent surgery for removal of the lateral nasal wall and directed biopsies, in an attempt to identify the site of tumour origin. The procedure was performed with the GE InstaTrak 3500 PlusTM computer-aided system, updated with intra-operative computed tomography images. Intra-operative, updated images were integrated successfully into the InstaTrak system, and these images were consistent with the observed endoscopic anatomy.

Conclusion:

The xCAT intra-operative mobile volume computed tomography scanner is a technological advancement that can assist the endoscopic sinus surgeon when performing complex rhinological and skull base procedures.

Keywords

Paranasal SinusesOtorhinolaryngologic Surgical ProceduresEndoscopyComputed Tomography Scanners
Type
Main Article
Information
The Journal of Laryngology & Otology , Volume 122 , Issue 4 , April 2008 , pp. 361 - 365
Copyright
Copyright © JLO (1984) Limited 2007

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