Iodine-125 seeds to guide removal of impalpable breast lesions: radio-guided occult lesion localization – a pilot study

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Abstract

Background: The aim of this study was to confirm that radio-guided occult lesion localization using low activity iodine 125 (I-125) seeds (ROLLIS) could be safely and accurately used for localization and guided excision of impalpable breast lesions in different multidisciplinary settings and to prepare staff for a randomized controlled trial. Method: Preoperative image-guided localization of 102 lesions using one or two I-125 seeds with hook-wire back-up was performed in 99 participants at two tertiary hospitals. Preoperative core biopsy in 24 lesions was benign or indeterminate (Group A) and malignant in 78 lesions (Group B). Imaging and histopathology findings and re-excision rates were recorded. Training requirements for new staff and seed handling protocols were refined. Results: All seeds and lesions were successfully removed. In five of 23 Group A participants, malignancy on final pathology required definitive surgery for positive margins. The re-excision rate in Group B was 17%. Overall re-excision rate was 18%. Thirty-seven clinical staff members were trained. Sentinel node localization was successful in all 76 cases. Seeds of low activity were successfully used. Conclusion: The ROLLIS technique using a lower dose (∼2 MBq) seed is safe, effective and can easily be adopted in a large multi-disciplinary setting.

LanguageEnglish
PagesE178-E182
JournalANZ Journal of Surgery
Volume87
Issue number11
DOIs
StatePublished - 1 Nov 2017

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Radio
Iodine
Seeds
Breast
Tertiary Care Centers
Randomized Controlled Trials
Pathology
Biopsy
Neoplasms

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title = "Iodine-125 seeds to guide removal of impalpable breast lesions: radio-guided occult lesion localization – a pilot study",
abstract = "Background: The aim of this study was to confirm that radio-guided occult lesion localization using low activity iodine 125 (I-125) seeds (ROLLIS) could be safely and accurately used for localization and guided excision of impalpable breast lesions in different multidisciplinary settings and to prepare staff for a randomized controlled trial. Method: Preoperative image-guided localization of 102 lesions using one or two I-125 seeds with hook-wire back-up was performed in 99 participants at two tertiary hospitals. Preoperative core biopsy in 24 lesions was benign or indeterminate (Group A) and malignant in 78 lesions (Group B). Imaging and histopathology findings and re-excision rates were recorded. Training requirements for new staff and seed handling protocols were refined. Results: All seeds and lesions were successfully removed. In five of 23 Group A participants, malignancy on final pathology required definitive surgery for positive margins. The re-excision rate in Group B was 17{\%}. Overall re-excision rate was 18{\%}. Thirty-seven clinical staff members were trained. Sentinel node localization was successful in all 76 cases. Seeds of low activity were successfully used. Conclusion: The ROLLIS technique using a lower dose (∼2 MBq) seed is safe, effective and can easily be adopted in a large multi-disciplinary setting.",
keywords = "breast, cancer, iodine-125 seed, localization, radio-guided",
author = "Bourke, {Anita G.} and Taylor, {Donna B.} and Eliza Westcott and Max Hobbs and Christobel Saunders",
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Iodine-125 seeds to guide removal of impalpable breast lesions : radio-guided occult lesion localization – a pilot study. / Bourke, Anita G.; Taylor, Donna B.; Westcott, Eliza; Hobbs, Max; Saunders, Christobel.

In: ANZ Journal of Surgery, Vol. 87, No. 11, 01.11.2017, p. E178-E182.

Research output: Contribution to journalArticle

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