SCOUT^® Radar Reflector for Nonpalpable Breast Lesion Localization: Clinical Outcomes from a Single-Center Experience.

Area of Science:

• Surgical Oncology
• Medical Devices
• Radiology

Background:

• Preoperative localization of non-palpable breast lesions is crucial for successful breast-conserving surgery.
• Traditional localization methods present logistical and patient comfort challenges.
• The SCOUT® wireless, radar-based system offers a potential improvement in surgical precision and workflow.

Purpose of the Study:

• To evaluate the clinical performance of the SCOUT® localization system.
• Assessing detection success, margin status, reoperation rates, and device-related events for non-palpable breast and axillary lesions.

Main Methods:

• Retrospective, single-center observational study of 427 patients.
• Patients underwent breast-conserving surgery following SCOUT® localization (January 2023 - May 2024).
• Analysis of lesion type, location, neoadjuvant treatment, detection, seed deactivation, MRI interference, margin status, and reoperation rates.

Main Results:

• High detection rates: 98.1% for breast lesions and 100% for axillary lesions.
• Low incidence of device-related events: 1.2% seed deactivation, 1.6% MRI interference (no diagnostic impact).
• Improved margin status: 8.3% positive margins (vs. historic 12%), with 5.9% reoperation rate.

Conclusions:

• SCOUT® demonstrates high detection rates and favorable margin outcomes.
• The system is associated with a low incidence of device-related events.
• SCOUT® is a reliable tool for localizing non-palpable breast lesions, enhancing surgical precision.