Our study demonstrates that wireless localisation using RFID is an effective and time-efficient alternative to WGL, with low margin positivity and re-operation rates, and high patient, radiologist and surgeon acceptance.īreast cancer radio-frequency tags tumour localisation.Ĭopyright© 2020, International Institute of Anticancer Research (Dr. Both radiologists and surgeons rated the LOCalizer™ technique as better than WGL. There were no positive margins, re-operations, nor complications. All tags were identified, and none had migrated. Our surgeons are the first in the Cincinnati and Northern Kentucky region to use the SAVI SCOUT Radar Breast Localization System state-of-the-art. Rather than inserting a localizing wire, this new technique involves placing a radioactive pellet, or seed, in the breast next to the tumor. Mean specimen weight was 19.6 g for malignant lesions (range=4.5-42). If the cancer has been detected by a mammogram or ultrasound and is not palpable meaning, it cannot be felt a localization procedure is required to assist the surgeon in removing the cancer. The mean duration for retrieval was 10.2 min (range=6-20). ![]() The mean distance from the lesion was 0.45 mm (range=0-3). The mean time for deployment of the RFID tag was 5.4 min (range=2-20). RFID tags (n=11) were deployed under ultrasound guidance pre-operatively to localise occult breast lesions in 10 patients. The evaluation focused on: i) successful deployment, ii) identification and retrieval, iii) the status of surgical margins and need for re-operation, iv) resected specimen weight, v) marker migration rates (>5mm), and vi) acceptance by patients, radiologists and surgeons. The seed contains a small amount of radiation. It may be done if the abnormal tissue is too small to be seen or felt by hand. ![]() ![]() This technique was evaluated in a prospective cohort of 10 patients. Breast seed localization is a procedure where a tiny metal seed, about the size of a small sesame seed, is placed into abnormal breast tissue to mark its location. In this prospective study we shall evaluate the role of radiation-free wireless localisation using a radiofrequency identification (RFID) tag and a hand-held reader (LOCalizer™) in the management of occult breast lesions. This has prompted the development of various wireless alternatives. However, it has restrictive scheduling requirements, and causes patient discomfort. Wire-guided localisation (WGL) has been the mainstay for localisation of clinically occult breast lesions before excision.
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