J Lambert1,2, T Steelandt3, S H Heywang-Köbrunner4, K Gieraerts1, I Van Den Berghe5, Ch Van Ongeval2, J W Casselman6,7. 1. Department of Radiology, AZ Sint Jan Brugge-Oostende AV, Campus Sint Jan, Ruddershove 10, 8000, Bruges, Belgium. 2. Department of Radiology, University Hospitals Leuven, Leuven, Belgium. 3. Department of Pathology, University Hospitals Leuven, Leuven, Belgium. 4. Reference Center Mammography, Munich, Germany. 5. Department of Pathology, AZ Sint Jan Brugge-Oostende AV, Bruges, Belgium. 6. Department of Radiology, AZ Sint Jan Brugge-Oostende AV, Campus Sint Jan, Ruddershove 10, 8000, Bruges, Belgium. jan.casselman@azsintjan.be. 7. Department of Radiology, University Ghent, Ghent, Belgium. jan.casselman@azsintjan.be.
Abstract
OBJECTIVES: The objective of this study is to report on the performance of the MRI-guided VABB in our center and to look at the long-term outcome of biopsies with benign histology over a period of 19 years. METHODS: In a single-center retrospective review study, data of 600 VABB procedures performed between September 1999 and March 2017 were evaluated. We collected patient demographics, histopathological diagnosis at MRI-VABB, and basic lesion characteristics (size, location). Data from the Belgian Cancer Registry was cross-referenced with our database to find out which patients with benign MRI-VABB results developed a malignant lesion over time. RESULTS: These 600 VABB procedures were performed in 558 women with a mean patient age of 51.8 years (range 18-82 years). Our technical success rate was 99.3%. We found 27.67% B5 lesions, 9.82% B3 lesions, and 0.17% B4 lesions. Of 362 benign MRI-guided VABBs, follow-up data was available for a mean follow-up period of 7.6 years (0.8-18.3). Only one (0.3%) biopsy was a false negative lesion after MRI-guided VABB during follow-up. Short-term FU-MRI provided no increase in detection rate. CONCLUSION: The accuracy of MRI-guided VABB is high with a very low false negative rate of 0.3% on long-term follow-up. The value of short-term FU-MRI for every case after MRI-guided VABB may be questioned. KEY POINTS: • MRI-guided vacuum-assisted breast biopsies yield a large portion of clinically relevant lesions (9.82% B3, 0.17% B4, and 27.67% B5 lesions). • The false negative biopsy rate of MRI-guided VABB in this study with a mean follow-up time of 7.6 years was only 0.3%. • Performing a short-term follow-up MRI after a benign MRI-guided VABB concordant to the MRI appearance may be questioned.
OBJECTIVES: The objective of this study is to report on the performance of the MRI-guided VABB in our center and to look at the long-term outcome of biopsies with benign histology over a period of 19 years. METHODS: In a single-center retrospective review study, data of 600 VABB procedures performed between September 1999 and March 2017 were evaluated. We collected patient demographics, histopathological diagnosis at MRI-VABB, and basic lesion characteristics (size, location). Data from the Belgian Cancer Registry was cross-referenced with our database to find out which patients with benign MRI-VABB results developed a malignant lesion over time. RESULTS: These 600 VABB procedures were performed in 558 women with a mean patient age of 51.8 years (range 18-82 years). Our technical success rate was 99.3%. We found 27.67% B5 lesions, 9.82% B3 lesions, and 0.17% B4 lesions. Of 362 benign MRI-guided VABBs, follow-up data was available for a mean follow-up period of 7.6 years (0.8-18.3). Only one (0.3%) biopsy was a false negative lesion after MRI-guided VABB during follow-up. Short-term FU-MRI provided no increase in detection rate. CONCLUSION: The accuracy of MRI-guided VABB is high with a very low false negative rate of 0.3% on long-term follow-up. The value of short-term FU-MRI for every case after MRI-guided VABB may be questioned. KEY POINTS: • MRI-guided vacuum-assisted breast biopsies yield a large portion of clinically relevant lesions (9.82% B3, 0.17% B4, and 27.67% B5 lesions). • The false negative biopsy rate of MRI-guided VABB in this study with a mean follow-up time of 7.6 years was only 0.3%. • Performing a short-term follow-up MRI after a benign MRI-guided VABB concordant to the MRI appearance may be questioned.
Entities:
Keywords:
Biopsy; Breast carcinoma; Image-guided biopsy; MR-guided interventional procedures; Magnetic resonance imaging
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