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Annals of Surgical Oncology

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01-11-2009 | Head and Neck Oncology

Is There an Additional Value of SPECT/CT Over Planar Lymphoscintigraphy for Sentinel Node Mapping in Oral/Oropharyngeal Squamous Cell Carcinoma?

Authors: Stephan K. Haerle, MD, Thomas F. Hany, MD, Klaus Strobel, MD, Daniel Sidler, MD, Sandro J. Stoeckli, MD

Published in: Annals of Surgical Oncology | Issue 11/2009

Abstract

Background

Lymphatic mapping for sentinel node biopsy (SNB) has been shown to be crucial for detection of sentinel lymph nodes (SLN). Previous reports suggested a benefit of single photon emission computed tomography with CT (SPECT/CT) over dynamic planar lymphoscintigraphy (LS) alone. The aim was to assess whether there is an additional value of SPECT/CT over LS alone for lymphatic mapping of SLNs in oral/oropharyngeal SCC.

Methods

A consecutive cohort of 58 patients was evaluated using SNB with additional SPECT/CT to preoperative LS.

Results

In the entire cohort of 58 patients undergoing LS and SPECT/CT, hot spots could be revealed in all but 4 cases. The guidance of the handheld gamma probe was able to reveal 9 additional SLNs within 3 patients not detected by either modality. Lymphoscintigraphy showed full concordance with SPECT/CT in 81% of the cases. SPECT/CT was able to detect additional HS in 11 patients, in 1 case even with additional metastatic disease. The false negative rate for SNB was 6%, and the negative predictive value 98%.

Conclusions

SPECT/CT has the potential to detect more SLNs, which might harbor occult disease, than LS alone. With regard to the excellent results achieved with LS and the intraoperative use of the gamma probe, SPECT/CT is not indispensable for successful SNB. Both imaging modalities have difficulties in detecting level I sentinel nodes close to the injection site.

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Title: Is There an Additional Value of SPECT/CT Over Planar Lymphoscintigraphy for Sentinel Node Mapping in Oral/Oropharyngeal Squamous Cell Carcinoma?
Authors: Stephan K. Haerle, MD
Thomas F. Hany, MD
Klaus Strobel, MD
Daniel Sidler, MD
Sandro J. Stoeckli, MD
Publication date: 01-11-2009
Publisher: Springer-Verlag
Published in: Annals of Surgical Oncology / Issue 11/2009
Print ISSN: 1068-9265
Electronic ISSN: 1534-4681
DOI: https://doi.org/10.1245/s10434-009-0632-0

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Is There an Additional Value of SPECT/CT Over Planar Lymphoscintigraphy for Sentinel Node Mapping in Oral/Oropharyngeal Squamous Cell Carcinoma?

Abstract

Background

Methods

Results

Conclusions

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Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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