Sentinel node detection in malignant melanoma patients: Radiation safety considerations

Terez Sera, Gabor Mohos, Miklos Papos, Margit Osvay, Janos Varga, Mate Lazar, Erika Kiss, Klara Kapitany, Attila Dobozy, Laszlo Csernay, Laszlo Pavics

Research output: Contribution to journalArticle

16 Citations (Scopus)


BACKGROUND. The surgical management of malignant melanoma necessitates correct sentinel lymph node localization. The highest reported sensitivities are those of lymphoscintigraphy and intraoperative γ-probe detection combined with a vital blue dye technique. OBJECTIVE. Control of the radiation doses experienced by surgical personnel untrained in the use of unsealed radioactive materials. METHODS. Sentinel lymph nodes were localized, and biopsies were performed in 25 patients with malignant melanoma. Radiation doses during surgery were determined with energy-compensated silicon pin diode detectors and LiF thermoluminescent ring dosimeters. RESULTS. In 21 cases (24%), the measured doses were less than 1 μSv, but in 4 operations (16%), 1 to 4.5 μSv was received. The equivalent dose rate was generally less than 1 μSv/h. The finger-absorbed doses for the surgeon and the assistant surgeon were (mean±SD) 159±23 and 48±17 μGy per intervention, respectively. CONCLUSION. Personal dosimetric survey and limitation of the number of surgical interventions do not appear to be essential.

Original languageEnglish
Pages (from-to)141-145
Number of pages5
JournalDermatologic Surgery
Issue number2
Publication statusPublished - Feb 1 2003

ASJC Scopus subject areas

  • Surgery
  • Dermatology

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