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Accuracy of Image Guided Needle Localisation of Breast Lesions::- An audit of local practice
EP29161
Poster Title: Accuracy of Image Guided Needle Localisation of Breast Lesions::- An audit of local practice
Submitted on 26 Oct 2018
Author(s): Dr Dione Lother, Dr Raham Karimaghaei, Dr Hannah Constanti
Affiliations: Kingston Hospital NHS Foundation Trust
This poster was presented at British Institute of Radiology Annual Congress
Poster Views: 359
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Poster Information
Abstract: Introduction: Breast cancer is one of the commonest malignancies in the UK, yet survival has doubled over the last half century. This epidemiological pattern is attributed to improved awareness, surgical and oncological advances, and perhaps most significantly, the national breast screening programme. As such, today, many breast cancers are detected as a result of screening; the majority of which are small and therefore amenable to breast conserving surgery. Subsequently, the demand for image-guided lesion localisation has significantly increased in modern day breast cancer services.
Objective: An audit comparing the accuracy of image-guided wire localisation against the gold standard outlined by the Royal College of Radiologists.

Methods: A retrospective local audit was performed to assess the accuracy of ultrasound and stereotactic wire localisation of breast lesions. Ultrasound and/or mammographic PACS images were assessed on the following criteria: - a) distance of wire tip from the lesion b) distance of wire to the lesion in any plane c) wire type d) nature of the lesion d) presence of a marker placed at biopsy and e) confirmation of complete excision of the lesion.

Results: Fifty image-guided wire localisation images were reviewed and compared to best practice standards. Ultrasound and stereotactic guidance was employed in 37 (74%) and 13 (26%) of localisations respectively. In all cases, accuracy was 100% where the wire tip was measured within 20mm from the lesion and distance of the wire from the lesion in any plane was within 10mm. Despite this, lesion excision was incomplete in 14% of cases.
Summary: Retrospective audit comparing the accuracy of image-guided wire localisations locally against the gold standard outlined by the Royal College of Radiologists and NHS Breast Screening Programme.References: 1. Breast Cancer Care (2016) Routine Breast Screening [online] Available at:www.breastcancercare.org.uk/information-support/have-i-got-breast-cancer/referral-to-a-breast clinic/routine-breast-screening> [accessed 2nd May 2018]
2. National Cancer Intelligence Network (2011) Screen-Detected Breast Cancer [online] Available at www.ncin.org.uk/publications/data_briefings/screen_detected_breast_cancer> [accessed 31st May 2018]
3. NHSBSP (2009) Quality Assurance Guidelines for Surgeons in Breast Cancer Screening. Sheffield;NHS Cancer Screening Programmes.
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