Savi-Scout Radar Localization: Transitioning From the Traditional Wire Localization to Wireless Technology for Surgical Guidance at Lumpectomies

Breast-conserving surgery or lumpectomy requires localization of the lesion prior to surgery, which is traditionally accomplished by imaging-guided wire localization. Over the last decade, alternatives to wire localization have emerged. This work reviews the literature on one such wireless technolog...

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Bibliographic Details
Published in:Seminars in ultrasound, CT, and MRI CT, and MRI, 2023-02, Vol.44 (1), p.12-17
Main Authors: Vijayaraghavan, Gopal R., Ge, Connie, Lee, Amanda, Roubil, John G., Kandil, Dina H., Dinh, Kate H., Vedantham, Srinivasan
Format: Article
Language:English
Subjects:
Breast - diagnostic imaging
Breast cancer
Breast Neoplasms - diagnostic imaging
Breast Neoplasms - pathology
Breast Neoplasms - surgery
Breast surgery
Female
Humans
Mammography
Mammography - methods
Mastectomy, Segmental - methods
Radar
Ultrasound
Wire localization
Wireless Technology
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Summary:Breast-conserving surgery or lumpectomy requires localization of the lesion prior to surgery, which is traditionally accomplished by imaging-guided wire localization. Over the last decade, alternatives to wire localization have emerged. This work reviews the literature on one such wireless technology, SaviScout radar (SSR) system, and shares our experience with using this technology for presurgical tumor localization. The SSR surgical guidance system is non-radioactive. The radiologist implants a reflector device in the breast under mammography or ultrasound guidance at any time prior to surgery. The placement of this reflector can be confirmed from the cadence of a handheld percutaneous probe of a handpiece and console system. Results from several studies show that the surgical outcomes from SSR and wire-localization are similar. SSR provides operational advantages as the scheduling for reflector placement by radiologists is decoupled from surgery, but at an increased cost compared to wire-localization.
ISSN:0887-2171
1558-5034
DOI:10.1053/j.sult.2022.10.004