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Learning curve for add-on stereotactic core needle breast biopsy
1Department of Clinical Radiology, Kuopio University Hospital and Kuopio University, Kuopio, Finland. Anna.Koskela@kuh.fi
Acta Radiologica (Stockholm, Sweden : 1987)
|June 27, 2006
Summary
A learning curve exists for stereotactic core needle biopsy (SCNB), particularly for microcalcifications. Radiologists require more than three supervised SCNB procedures to achieve proficiency.
Area of Science:
- Radiology
- Oncology
- Medical Imaging
Background:
- Stereotactic core needle biopsy (SCNB) is a crucial tool for diagnosing non-palpable breast lesions.
- Evaluating the learning curve associated with SCNB is essential for optimizing procedural success and patient outcomes.
Purpose of the Study:
- To assess the learning curve for performing add-on 14 G stereotactic core needle biopsy (SCNB).
- To determine the impact of operator experience on biopsy success rates and false-negative rates.
Main Methods:
- A prospective study evaluated 231 SCNBs performed by five radiologists.
- Radiologists underwent initial supervised biopsies, with subsequent independent procedures analyzed.
- Biopsy success and false-negative rates were analyzed based on operator experience and lesion type (microcalcifications vs. masses).
Main Results:
- Technically unsuccessful biopsies were more frequent for microcalcifications (14.9%) compared to masses (3.8%).
- Biopsy success rates for microcalcifications improved from 75% in the first 5 biopsies to 87.8% in subsequent procedures.
- A trend indicated a higher false-negative rate in the initial five biopsies compared to later procedures.
Conclusions:
- The study confirms a learning curve for SCNB, especially for microcalcification biopsies.
- Radiologists may need more than three supervised SCNB procedures to achieve competence.
- Optimizing training protocols can enhance SCNB efficacy.
