The use of stereotactic navigation guidance in minimally invasive transnasal nasopharyngectomy: a comparison with the conventional open transfacial approach
E W H To, FRCS
1
E H Y Yuen, FRCR
2
W M Tsang, FRACDS
4
E C H Lai, MBChB
1
G K C Wong, AFRCS
3
D T F Sun, FRCS
3
D T M Chan, FRCS
3
J M K Lam, FRCS
3
A Ahuja, FRCR
2 and
W S Poon, FRCS
3
1 Division of Head and Neck—Plastic and Reconstructive Surgery, Department of Surgery, 2 Department of Diagnostic Radiology and Organ Imaging and 3 Division of Neurosurgery, Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong and 4 Oral Maxillofacial Surgery and Dental Unit, Prince of Wales Hospital, Shatin, Hong Kong
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Figure 1. The stereotactic navigation guidance system (Vector Vision 2; Brain Lab, Heimstetten, Germany) in theatre.
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Figure 2. Retracted upper lip and bilateral medial maxillectomy allowing a minimally invasive transnasal approach to the nasopharynx.
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Figure 3. Computer generated three-dimensional image showing identification of the left internal carotid artery with the navigation probe.
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Figure 4. Axial CT image showing identification of the left internal carotid artery with the navigation probe.
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Figure 5. Coronal CT image showing identification of the left internal carotid artery with the navigation probe.
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Figure 6. Contrast enhanced axial CT showing recurrence of nasopharyngeal carcinoma in the right nasopharynx (arrow) invading posterolaterally.
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Figure 7. Arial T1 weighted MRI image 3 monthspost-operative of nasopharyngectomy. Nasopharyngectomy was performed via the transnasal approach.
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Copyright © 2002 by the British Institute of Radiology.
