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Preoperative MR-guided wire localization for suspicious breast lesions: comparison of manual and automated software
Sonja Kinner1, Michael Herbrik1, Stefan Maderwald2
1Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Germany.
Objectives:
Preoperative magnetic resonance (MR) guided wire localization is a frequently used tool to target MR-only visible breast lesions. Different techniques are available. Targeting can be performed using automated software or a manual approach. Aim of this study therefore was to compare manually and automated software assisted wire localization of suspicious breast lesions regarding to image time and accurate positioning.
Methods:
60 females with suspicious breast lesions underwent MR-guided wire localization. In 30 patients a manual target calculation and in another 30 patients a software calculated approach was used. Time measurements for MR imaging as well as calculation of the target coordinates were performed. Furthermore size measurements of (i) lesions, (ii) distance to wire anchor as well as, (iii) distance to skin were performed. A Mann-Whitney-test was used for statistical evaluation.
Results:
Total imaging time was shorter for the automated software calculated approach but failed to show a statistical significant difference (p=0.13). Time for localization of the lesions was significantly shorter for the software based method (p<0.001). Lesion sizes, distances to wire anchor and skin showed no statistically significant differences.
Conclusions:
Preoperative MR-guided wire localization of suspicious lesions that are accessible horizontally, a manually or automated software generated target calculation can be used. As MR guided wire localization of breast lesions needs its time in total, a minimal time consuming approach and therefore an automated software calculated targeting (if available) should be preferred.
Insights
Automated software significantly speeds up magnetic resonance (MR) guided wire localization for breast lesions compared to manual methods. This approach is preferred for its efficiency in targeting suspicious lesions.
Area of Science:
- Radiology
- Medical Imaging
- Surgical Oncology
Background:
- Preoperative magnetic resonance (MR) guided wire localization is crucial for targeting MR-only visible breast lesions.
- Both manual and automated software-assisted techniques exist for this procedure.
Purpose of the Study:
- To compare the efficiency and accuracy of manual versus automated software-assisted MR-guided wire localization for suspicious breast lesions.
- To evaluate image time and positioning accuracy between the two methods.
Main Methods:
- Sixty female patients with suspicious breast lesions were included.
- Thirty patients underwent manual target calculation, and 30 had software-calculated targeting.
- Measurements included MR imaging time, localization time, lesion size, and distances to wire anchor and skin.
Main Results:
- Automated software significantly reduced lesion localization time (p<0.001).
- Total imaging time was shorter with the automated approach, though not statistically significant (p=0.13).
- No significant differences were found in lesion size, distance to wire anchor, or distance to skin.
Conclusions:
- Both manual and automated software methods are viable for MR-guided wire localization of horizontally accessible suspicious breast lesions.
- Automated software targeting is recommended for its time-saving benefits, making it the preferred approach when available.
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