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Coaxial technique: approach to breast core biopsies
T H Helbich1, W Mayr, S Schick
1Department of Radiology, University of Vienna, Austria.
Radiology
|June 1, 1997
Summary
The coaxial core breast biopsy technique is accurate and efficient for tissue sampling under stereotactic or ultrasound guidance. This method simplifies the procedure, saving time while ensuring reliable results for suspicious breast lesions.
Area of Science:
- Radiology
- Surgical Oncology
- Medical Devices
Background:
- Accurate tissue diagnosis is crucial for breast cancer management.
- Minimally invasive biopsy techniques aim to improve diagnostic yield and patient comfort.
Purpose of the Study:
- To evaluate the feasibility of the coaxial core breast biopsy technique.
- To assess its performance under stereotactic and ultrasound (US) guidance, both in vitro and in vivo.
Main Methods:
- In vitro analysis of needle-tip deviation and specimen harvesting techniques.
- In vivo coaxial biopsies performed on 210 suspicious breast lesions in 205 patients.
- Guidance utilized included US, stereotactic (sitting and prone positions).
- Coaxial system also assessed for preoperative localization.
Main Results:
- In vitro studies identified and corrected for needle-tip deviation under stereotactic guidance.
- Optimized US guidance involved angulation/rotation for larger specimens.
- High agreement (98%) between biopsy and postsurgical histology.
- 112 benign and 98 malignant lesions were accurately diagnosed.
Conclusions:
- The coaxial core breast biopsy technique is a feasible and effective method.
- It offers accuracy, simplicity, and time-saving benefits.
- Suitable for both stereotactic and US-guided procedures.