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Related Experiment Videos

PET probe-guided surgery: applications and clinical protocol.

Seza A Gulec1, Erica Hoenie, Richard Hostetter

  • 1Center for Cancer Care at Goshen Health System, Goshen, IN, USA. sgulec@goshenhealth.com

World Journal of Surgical Oncology
|June 9, 2007
PubMed
Summary
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A handheld positron emission tomography (PET) probe aids in locating cancerous lesions during surgery. This technology successfully guided surgeons to non-palpable tumors, improving surgical outcomes for recurrent or metastatic cancers.

Area of Science:

  • Oncology
  • Surgical Oncology
  • Nuclear Medicine

Background:

  • The shift towards aggressive cancer treatments necessitates precise localization of metastatic lesions.
  • Positron Emission Tomography (PET) imaging advances have paralleled new systemic therapies.
  • Intraoperative localization of PET-avid lesions can be enhanced with a handheld PET probe.

Purpose of the Study:

  • To evaluate the efficacy of a handheld PET probe for intraoperative localization of recurrent or metastatic cancer.
  • To assess the feasibility of a separate-day protocol for PET probe-guided surgery.
  • To determine the impact of PET probe-guided surgery on surgical exploration success.

Main Methods:

  • Review of patient records undergoing PET probe-guided surgery.

Related Experiment Videos

  • Preoperative PET/PET-CT imaging for surgical planning.
  • Intraoperative use of a high-energy gamma probe (PET probe) 2-6 hours post-FDG injection.
  • Analysis of probe count rates, target-to-background ratios (TBR), and lesion detection success.

    • Main Results:

    • Twenty-five PET probe-guided surgeries were performed across various cancer types (colorectal, thyroid, lymphoma, etc.).
    • PET probe successfully detected all preoperative FDG-PET identified lesions with a TBR ≥ 1.5.
    • The PET probe facilitated localization of non-palpable lesions in 8 patients, improving surgical exploration.

    Conclusions:

    • Handheld PET probe use enhances surgical exploration success in selected oncological indications.
    • The separate-day protocol for PET probe-guided surgery is clinically feasible and allows flexible OR scheduling.