Accuracy of non-operative identification of the sentinel lymph node using combined gamma and ultrasound scanning

P. Whelehan (Lead / Corresponding author), S. J. Vinnicombe, D. C. Brown, D. McLean, A. Evans

    Research output: Contribution to journalArticle

    6 Citations (Scopus)

    Abstract

    Aim
    To assess how accurately the sentinel lymph node (SLN) can be identified percutaneously, using gamma probe and ultrasound technology.

    Materials and methods
    Women with breast cancer, scheduled for wide local excision or mastectomy with SLN biopsy (SLNB), were included. Peri-areolar intradermal injection of technetium-99 nanocolloid was performed on the morning of surgery and 1–2 ml of blue dye was injected in the peri-areolar region once the patient was anaesthetized. Prior to surgery, a gamma probe was used over the skin to identify any hot spot that could represent a SLN. Ultrasound, guided by the hot spot, was then used to visualize potential SLNs and guide the insertion of a localizing wire. The accuracy in localizing the SLN by preoperative gamma-probe guided ultrasonography was assessed by comparison to SLNB.

    Results
    A SLN was correctly identified and marked using gamma-probe guided ultrasonography in 44 of 59 cases (75%; 95% CI: 63–86%).

    Conclusion
    This study supports the case for investigating percutaneous gamma probe and ultrasound guided interventions in the axilla in women with breast cancer, as a potential alternative to surgical SLNB.
    Original languageEnglish
    Pages (from-to)849-852
    Number of pages4
    JournalClinical Radiology
    Volume69
    Issue number8
    DOIs
    Publication statusPublished - 2014

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