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Beyond Wires and Seeds: Reflector-guided Breast Lesion Localization and Excision.
Victoria L Mango1, Ralph T Wynn1, Sheldon Feldman1
1From the Department of Radiology, Columbia University Medical Center, Herbert Irving Pavilion, 161 Fort Washington Ave, 10th Floor, New York, NY 10032.
Radiology
|April 22, 2017
Summary
The Savi Scout localization system accurately guides the excision of breast lesions, demonstrating a low re-excision rate of 7.4% for malignancies. This reflector-based method offers a reliable alternative for breast lesion removal.
Area of Science:
- Radiology
- Surgical Oncology
- Medical Devices
Background:
- Accurate localization of non-palpable breast lesions is crucial for successful surgical excision.
- Traditional localization methods have limitations, including radiation exposure and potential for migration.
- The Savi Scout system utilizes non-radioactive reflectors for image-guided localization.
Purpose of the Study:
- To evaluate the outcomes of Savi Scout reflector-guided localization and excision of breast lesions.
- To analyze reflector placement accuracy, localization, and removal efficiency.
- To determine target excision success and re-excision rates.
Main Methods:
- Retrospective review of 100 women undergoing breast lesion excision using Savi Scout (June 2015-May 2016).
- 123 reflectors were placed using sonographic or mammographic guidance 0-8 days pre-operatively.
- Intraoperative localization and specimen analysis verified target and reflector removal.
Main Results:
- 100% of reflectors were placed and excised.
- Mean target-to-reflector distance was 0.3 cm.
- Re-excision was required in 7.4% of malignant cases; 4.5% of specimens showed reflector-target distance >1.0 cm.
Conclusions:
- Savi Scout is an accurate and reliable method for breast lesion localization and excision.
- The system demonstrates acceptable margin positivity and re-excision rates.
- Savi Scout offers advantages over other localization methods, warranting further investigation.