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Related Experiment Videos

Axillary sentinel lymph-node biopsy: gamma probe assisted sonographic localisation.

A Hollerweger1, P Macheiner, E Hübner

  • 1Abteilung für Radiologie und Nuklearmedizin, KH Barmherzige Brüder, Kajetanerplatz 1, 5020 Salzburg, Austria. alois.hollerweger@bbsalz.at

Ultraschall in Der Medizin (Stuttgart, Germany : 1980)
|February 14, 2006
PubMed
Summary

Gamma probe-assisted sonography accurately identifies sentinel lymph nodes (SLNs) in most patients, aiding in precise surgical localization and improving diagnostic correlation.

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Area of Science:

  • Oncology
  • Radiology
  • Surgical Pathology

Background:

  • Sentinel lymph node (SLN) biopsy is crucial for cancer staging.
  • Accurate SLN identification is essential to avoid unnecessary axillary dissection.
  • Gamma probe-assisted sonography offers a potential improvement in SLN localization.

Purpose of the Study:

  • To evaluate the efficacy of gamma probe-assisted sonography for axillary SLN identification.
  • To assess the accuracy of SLN localization prior to surgery.

Main Methods:

  • 42 patients underwent sonographically guided radiopharmacon injection.
  • Lymphatic mapping was performed using a gamma camera.
  • SLNs were identified and localized using a high-frequency transducer with an adapted gamma probe and hook-wire.

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Main Results:

  • Successful lymphatic mapping was achieved in 40 out of 42 patients.
  • Gamma probe-assisted sonography correctly localized SLNs in 92% (35/38) of cases.
  • Inaccurate localizations were adjacent to the SLN, allowing for successful surgical intervention.

Conclusions:

  • Preoperative identification and accurate localization of axillary SLNs are feasible with gamma probe-assisted sonography.
  • This technique facilitates rapid intraoperative SLN detection.
  • It enables precise correlation of sonographic findings with histopathological results.