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08.08.2023 | Breast Oncology

Surgeon and Radiologist Evaluation of Electromagnetic Chip Localization for Benign and Malignant Breast Lesions

verfasst von: Nicholas T. Champion, MD, Blaise Mooney, MD, Youngchul Kim, PhD, Junmin Whiting, PhD, Weihong Sun, MD, MS, John Kiluk, MD, Brian Czerniecki, MD, PhD, Susan Hoover, MD, Marie Catherine Lee, MD

Erschienen in: Annals of Surgical Oncology | Ausgabe 12/2023

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Abstract

Background

SmartClip^TM is a food and drug administration-approved, electromagnetic chip (EMC) localization system that provides three-dimensional navigation for the excision of soft tissue lesions. The purpose of this study was to analyze the accuracy and feasibility of EMC radiologic and surgical localization for benign and malignant breast lesions.

Patients and Methods

An institutional review board-approved, single institution, prospective study from October 2020 to September 2022 of 38 women undergoing breast conserving surgery with EMC localization of a single lesion > 5 mm on mammogram (MMG) or ultrasound (US) imaging. Surveys from performing breast radiologists and breast surgeons were collected after image-guided localization and surgical excision.

Results

Seventy-six survey responses from nine radiologists and four surgeons were received. The deployment needle and EMC were highly visible in 86.8% and 76.3% of procedures, respectively. There was no difficulty in deployment for 92.1% of procedures. The EMC was in the correct location on postdeployment MMG in 97.4% of cases. Three instances of EMC migration occurred, one 1 cm from target lesion. The targeted mass and EMC were within the surgical specimen in 97.4% of cases. On specimen radiograph, 39.5% of the EMCs were 0–1 mm from the center of the target lesion, 18.4% were within 2–4 mm, and 23.7% were within 5–10 mm. Mean operating room time for all cases was 65 min. One case required US to localize the target due to console malfunction.

Conclusion

There was successful EMC deployment by radiologists with accurate visualization and successful surgical excision in most cases. The EnVisio^TM SmartClip^TM system is a reproducible and accurate localization method for benign and malignant breast lesions.

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Titel: Surgeon and Radiologist Evaluation of Electromagnetic Chip Localization for Benign and Malignant Breast Lesions
verfasst von: Nicholas T. Champion, MD
Blaise Mooney, MD
Youngchul Kim, PhD
Junmin Whiting, PhD
Weihong Sun, MD, MS
John Kiluk, MD
Brian Czerniecki, MD, PhD
Susan Hoover, MD
Marie Catherine Lee, MD
Publikationsdatum: 08.08.2023
Verlag: Springer International Publishing
Erschienen in: Annals of Surgical Oncology / Ausgabe 12/2023
Print ISSN: 1068-9265
Elektronische ISSN: 1534-4681
DOI: https://doi.org/10.1245/s10434-023-13976-5

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Surgeon and Radiologist Evaluation of Electromagnetic Chip Localization for Benign and Malignant Breast Lesions