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Table 5 The mpUS imaging features of mpMRI-TRUS fusion imaging target areas

From: The combined value of mpUS and mpMRI-TRUS fusion for the diagnosis of clinically significant prostate cancer

Imaging features

grouping

Number of patients(n)

Pathology results

Χ2

P

benign(%)

PCa(%)

echo level

hypoechoic

89

15 (18.52)

74 (61.16)

36.260

 < 0.001

isoechoic

99

59 (72.84)

40 (33.06)

hypoechoic

14

7 (8.64)

7 (5.79)

edge features

regular edges

148

73 (90.12)

75 (61.98)

19.616

 < 0.001

irregular edges

54

8 (9.88)

46 (38.02)

aspect ratio

 ≥ 1

110

35 (43.21)

75 (61.98)

6.895

0.009

 < 1

92

46 (56.79)

46 (38.02)

capsule bulge

positive

107

21 (25.93)

86 (71.07)

39.701

 < 0.001

negative

95

60 (74.07)

35 (28.93)

blood flow distribution

symmetrical

115

62 (76.54)

53 (43.80)

21.213

 < 0.001

asymmetric

87

19 (23.46)

68 (56.20)

enhancement pattern

fast-forward enhancement

32

4 (4.94)

28 (23.14)

-

 < 0.001

fast-backward enhancement

4

3 (3.70)

1 (0.83)

none

93

51 (62.96)

42 (34.71)

both

73

23 (28.40)

50 (41.32)

perfusion strength

hypoperfusion/nonperfusion

26

4 (4.94)

22 (18.18)

22.056

 < 0.001

normal perfusion

100

56 (69.14)

44 (36.36)

hyperperfusion

76

21 (25.93)

55 (45.45)

diffuse enhancement

positive

99

19 (23.47)

80 (66.12)

35.332

 < 0.001

negative

103

62 (76.54)

41 (33.88)

strain pattern

homogeneous strain

20

8 (9.88)

12 (9.92)

12.788

0.002

symmetric heterogeneous strain

53

32 (39.51)

21 (17.36)

asymmetric strain

129

41 (50.62)

88 (72.73)

focal no-strain

positive

129

41 (50.62)

88 (72.73)

10.277

0.001

negative

73

40 (49.38)

33 (27.27)