Table 6. Comparison between random biopsy and targeted biopsy.
Random biopsy | Targeted biopsy for index lesion |
||
---|---|---|---|
Total cores | 5825 cores | 1666 cores | |
Median number of cores per patient (range) | 10.0 cores (0–20) |
2.0 cores (1–8) |
|
Cancer positive cores | 495 cores | 426 cores | |
Positive for any cancer per core |
8.5% (495/5825 cores) |
25.6% (426/1666 cores) |
p<0.001 |
Proportion of clinically insignificant cancer cores in all cancer positive cores | 48.3% (239/495 cores) |
31.9% (136/426 cores) |
p<0.001 |
Median cancer core length
(range) |
2.0 mm (0.2–17) |
5.0 mm (0.16–19) |
p<0.001 |
Positive for clinically significant cancer per patient |
14.9% (91/609 patients) |
20.7% (130/629 patients) |
p=0.009 |
Positive only with random biopsy | Positive only with targeted biopsy | ||
Clinically significant cancer | 1.6% (10/629 patients) |
10.5% (66/629 patients) |
p<0.001 |