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Comparison of old and new TRUS biopsy techniques.
| TRUS-Guided Biopsy | Old Biopsy Techniques | New Biopsy Techniques |
|---|---|---|
| Central tumor targeting | Yes | Yes |
| Peripheral tumor targeting | No | Yes |
| Number of target cores | Oligo-cores (1–3) | Multi-cores (4–6) |
| Systematic biopsy | Yes | Yes, but no in T3/T4 cancers |
TRUS, transrectal ultrasound.
