Efficacy of Digital Breast Tomosynthesis (DBT) in preoperative wire localisation of non palpable breast lesions.
Association of Breast Surgery ePoster Library. Udayasankar S. 05/15/17; 166250; P063
Sujatha Udayasankar
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Abstract
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Introduction: Digital breast tomosynthesis (DBT) is a new three dimensional imaging technique for breast mammography. This has showed better accuracy in detection of non palpable lesions and increases cancer detection. We aim to look at its use in preoperative localisation of such lesions.
Method: All patients who had DBT wire localisation for surgery from Jun 2014 to Oct 2016 were included in this retrospective audit. The Royal College of Radiologist guidance and NHSBSP standards state that wire to lesion distance should be within 10mm of the lesion in any plane and the tip should not be more than 20mm beyond the lesion. The proximity of wire localisation to the target lesion and the outcomes of surgery were studied.
Results: Total of 85 patients had DBT wire localisation procedure. Patients who had bracketing and lost to follow up were excluded. Of the 80 patients, 54 presented from screening and 26 were symptomatic. This series included both diagnostic (N=15, 18.7%) and therapeutic excisions (N=65, 81.25%). The lesions requiring localisation were either impalpable lesion/distortion in 21 (26.2%), calcification in 46 (57.5%) and marker clips in 13 (16.2%). The final diagnoses following excision were benign -11 (13.8%), radial scar -5 (6.2 %), DCIS -26 (32.5%) and invasive cancer -38 (47.5%). The mean distance from wire to lesion was 6.4mm and the wire tip to lesion was 9.7mm.
Conclusions: Preoperative DBT wire localisation allows accurate localisation of impalpable lesions and excision.
Method: All patients who had DBT wire localisation for surgery from Jun 2014 to Oct 2016 were included in this retrospective audit. The Royal College of Radiologist guidance and NHSBSP standards state that wire to lesion distance should be within 10mm of the lesion in any plane and the tip should not be more than 20mm beyond the lesion. The proximity of wire localisation to the target lesion and the outcomes of surgery were studied.
Results: Total of 85 patients had DBT wire localisation procedure. Patients who had bracketing and lost to follow up were excluded. Of the 80 patients, 54 presented from screening and 26 were symptomatic. This series included both diagnostic (N=15, 18.7%) and therapeutic excisions (N=65, 81.25%). The lesions requiring localisation were either impalpable lesion/distortion in 21 (26.2%), calcification in 46 (57.5%) and marker clips in 13 (16.2%). The final diagnoses following excision were benign -11 (13.8%), radial scar -5 (6.2 %), DCIS -26 (32.5%) and invasive cancer -38 (47.5%). The mean distance from wire to lesion was 6.4mm and the wire tip to lesion was 9.7mm.
Conclusions: Preoperative DBT wire localisation allows accurate localisation of impalpable lesions and excision.
Introduction: Digital breast tomosynthesis (DBT) is a new three dimensional imaging technique for breast mammography. This has showed better accuracy in detection of non palpable lesions and increases cancer detection. We aim to look at its use in preoperative localisation of such lesions.
Method: All patients who had DBT wire localisation for surgery from Jun 2014 to Oct 2016 were included in this retrospective audit. The Royal College of Radiologist guidance and NHSBSP standards state that wire to lesion distance should be within 10mm of the lesion in any plane and the tip should not be more than 20mm beyond the lesion. The proximity of wire localisation to the target lesion and the outcomes of surgery were studied.
Results: Total of 85 patients had DBT wire localisation procedure. Patients who had bracketing and lost to follow up were excluded. Of the 80 patients, 54 presented from screening and 26 were symptomatic. This series included both diagnostic (N=15, 18.7%) and therapeutic excisions (N=65, 81.25%). The lesions requiring localisation were either impalpable lesion/distortion in 21 (26.2%), calcification in 46 (57.5%) and marker clips in 13 (16.2%). The final diagnoses following excision were benign -11 (13.8%), radial scar -5 (6.2 %), DCIS -26 (32.5%) and invasive cancer -38 (47.5%). The mean distance from wire to lesion was 6.4mm and the wire tip to lesion was 9.7mm.
Conclusions: Preoperative DBT wire localisation allows accurate localisation of impalpable lesions and excision.
Method: All patients who had DBT wire localisation for surgery from Jun 2014 to Oct 2016 were included in this retrospective audit. The Royal College of Radiologist guidance and NHSBSP standards state that wire to lesion distance should be within 10mm of the lesion in any plane and the tip should not be more than 20mm beyond the lesion. The proximity of wire localisation to the target lesion and the outcomes of surgery were studied.
Results: Total of 85 patients had DBT wire localisation procedure. Patients who had bracketing and lost to follow up were excluded. Of the 80 patients, 54 presented from screening and 26 were symptomatic. This series included both diagnostic (N=15, 18.7%) and therapeutic excisions (N=65, 81.25%). The lesions requiring localisation were either impalpable lesion/distortion in 21 (26.2%), calcification in 46 (57.5%) and marker clips in 13 (16.2%). The final diagnoses following excision were benign -11 (13.8%), radial scar -5 (6.2 %), DCIS -26 (32.5%) and invasive cancer -38 (47.5%). The mean distance from wire to lesion was 6.4mm and the wire tip to lesion was 9.7mm.
Conclusions: Preoperative DBT wire localisation allows accurate localisation of impalpable lesions and excision.
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