Table 2 TTMB parameters of the study population

From: Performance of transperineal template-guided mapping biopsy in detecting prostate cancer in the initial and repeat biopsy setting

Continuous variable

Number of biopsy sessions

 

1 (n=79)

2 (n=146

3 (n=84)

⩾4 (n=64)

P

Total (n=373)

 

Mean

Median

Mean

Median

Mean

Median

Mean

Median

 

Mean

Median

No. mapping biopsy coresa

55.1

55.0

54.7

58.0

53.2

58.0

52.1

58.0

0.323

54.0

57.0

Prostate volume

           

 Volumetric

52.7

45.1

61.8

55.4

73.2

62.7

89.5

75.0

<0.001

67.2

58.0

 Ellipsoid

46.2

39.8

54.5

49.0

65.6

57.9

78.9

66.8

<0.001

59.4

51.2

TZ volume

           

 Ellipsoid

19.2

15.2

25.4

18.5

34.2

26.8

43.1

32.8

<0.001

29.1

21.2

Prebiopsy PSA

5.6

4.8

7.0

5.4

9.1

8.6

13.6

9.3

<0.001

8.3

6.3

PSAD

0.15

0.11

0.16

0.12

0.17

0.14

0.22

0.14

0.291

0.17

0.12

TZ PSAD

0.42

0.30

0.49

0.29

0.46

0.31

0.53

0.30

0.859

0.48

0.30

TZ index

0.42

0.37

0.41

0.40

0.46

0.48

0.50

0.51

0.017

0.44

0.42

  1. Abbreviations: PSA, prostate specific antigen; PSAD, prostate specific antigen density; TTMB, transperineal template-guided mapping biopsy; TZ, transition zone.
  2. aMost recent mapping biopsy.
  3. Bold indicates statistically significant.
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