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. localization techniques such as Angle of Arrival (AoA), Time of Flight (ToF), Return Time of Flight (RTOF), Received Signal Strength (RSS) based on technologies such as WiFi, Radio Frequency Identication Device (RFID), Ultra Wideband (UWB), Bluetooth and systems that have been proposed in the literature. Both radiologists and surgeons rated the LOCalizer™ technique as better than WGL. 5G presents Unique Opportunity for Localization 1.Small Cell Architecture leads to very high density of 5G Base Stations ØGives large number of anchor points for improved accuracy a 2.5G packets can span up to 100 MHz bandwidth ØThe high bandwidth allows for high ToFresolution (3 meters for 100 MHz) 11 m 39 m 15 m s Frequency Translate to. There were no positive margins, re-operations, nor complications. All tags were identified, and none had migrated. Mean specimen weight was 19.6 g for malignant lesions (range=4.5-42). The term glide path means that portion of the glide slope that intersects the localizer. The mean duration for retrieval was 10.2 min (range=6-20). The UHF glide slope transmitter, operating on one of the 40 ILS channels within the frequency range 329.15 MHz, to 335.00 MHz radiates its signals in the direction of the localizer front course. 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. This technique was evaluated in a prospective cohort of 10 patients. 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.