Table 2

Pooled estimates of sensitivity and specificity stratified by US technique

Sensitivity for all DVT

Sensitivity for proximal DVT

Sensitivity for distal DVT

Specificity

Compression only, N = 22

90.3% (88.4 to 92.0) P < 0.001

93.8% (92.0 to 95.3) P = 0.005

56.8% (49.0 to 66.4) P < 0.001

97.8% (97.0 to 98.4) P = 0.01

Colour Doppler only, N = 5

81.7% (77.4 to 85.5) P < 0.001

95.8% (85.7 to 99.5) P = 0.427

43.5% (23.2 to 66.5) P = 0.009

92.7% (89.7 to 95.1) P = 0.003

Continuous wave Doppler only, N = 16

81.1% (78.2 to 83.7) P < 0.001

87.8% (84.7 to 90.5) P < 0.001

41.8% (32.5 to 51.6) P = 0.015

84.0% (81.4 to 86.3) P < 0.001

Triplex, N = 25

91.1% (89.0 to 93.0) P < 0.001

96.4% (94.4 to 97.9) P < 0.001

75.2% (67.7 to 81.6) P < 0.001

94.3% (92.5 to 95.8) P < 0.001

Duplex, N = 28

92.1% (90.7 to 93.5) P < 0.001

96.5% (95.1 to 97.6) P < 0.001

71.2% (64.6 to 77.2) P < 0.001

94.0% (92.8 to 95.1) P < 0.001

Others, N = 4

93.3% (88.8 to 96.4) P = 0.338

-

-

96.0% (92.2 to 98.2) P < 0.001

95% CI in parentheses P-value = Chi-square test for heterogeneity

Goodacre et al. BMC Medical Imaging 2005 5:6   doi:10.1186/1471-2342-5-6