Abstract
Purpose
As breast-conserving surgery (BCS) has become the standard for treatment of early breast cancer, the need for new technologies to improve intraoperative margin assessment has become clear. Close or positive margins during BCS lead to additional surgeries, treatment delay, additional stress for patients and increasing healthcare cost. Automated three-dimensional breast ultrasound (ABUS) systems are meant to overcome the shortcomings of hand-held ultrasound (HHUS). In this study, we investigate the feasibility of ABUS to conduct ultrasound on surgical specimens in breast conserving therapy.
Methods
In this monocentric, non-interventional study, specimens of 40 women were examined via ABUS. A construction with isotonic saline solution, gel pads and ABUS membranes was invented by our team to produce images of breast cancer specimens using ABUS. Evaluation of the ABUS images was carried out by two independent physicians trained on ABUS evaluation.
Results
ABUS was conducted on 40 specimens. 90% of the generated images were of high quality. Measured tumor sizes with ABUS were bigger than measured tumor size with HHUS (mean tumor size 22.9 vs. 18.1 mm, CI 2.38–7.35, p < 0.05). The mean difference between the ABUS tumor size and the pathological tumor size was 1.8 mm (CI − 0.84–4.53, p = 0.17). The mean difference between the HHUS tumor size and the pathological tumor size was 3.2 mm (CI − 5.35 to − 1.03, p = 0.005).
Conclusion
ABUS seems to be a suitable method to conduct specimen ultrasound. Further studies are required to evaluate the accuracy of ABUS for intraoperative margin assessment and possible implementation in clinical work routine.
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Data availability
The data that support the findings of this study are available from the corresponding author (MEH).
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MEH: protocol development, data collection and management, data analysis, and manuscript writing. DH: data collection, data analysis, and manuscript editing. ET: data management and data analysis. AS: pathological analysis. MF-P: data collection. MH: data collection. BRR: data collection. OO: manuscript editing and supervision. SS: protocol development, manuscript editing, and supervision.
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This study was carried out in accordance with The Code of Ethics of the World Medical Association (Declaration of Helsinki). The study was registered by the local ethical committee (Reference no. 21-2309-104).
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Hatzipanagiotou, M.E., Huber, D., Thede, E. et al. Automated breast ultrasound (ABUS) for intraoperative margin control on surgical specimens in breast conserving surgery. Arch Gynecol Obstet 307, 1949–1955 (2023). https://doi.org/10.1007/s00404-022-06837-1
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DOI: https://doi.org/10.1007/s00404-022-06837-1