Table 3 Mean and standard deviation of shear wave velocity (SWV) for predicting malignancy in splenic lesions of dogs.

From: Accuracy of B-mode ultrasound and ARFI elastography in predicting malignancy of canine splenic lesions

Variable

Benign

Malignant

P-Value

CP

Se%

Sp%

PPV%

NPV%

Acc%

AUC

SWV cranial

2.0 ± 0.5

3.0 ± 0.8

 < 0.0001

 > 2.6

71.4

93.8

93.8

71.4

81.1

0.8899

SWV Medial

1.9 ± 0.3

3.1 ± 0.8

 < 0.0001

 > 2.3

85.7

93.8

95.0

88.2

91.9

0.9077

SWV Caudal

2.0 ± 0.5

3.0 ± 0.7

 < 0.0001

 > 2.5

76.2

93.8

94.1

75.0

83.8

0.8661

SWV of the lesion and medial in diffuse

1.7 ± 0.5

3.4 ± 0.5

 < 0.0001

 > 2.6

95.2

100

100

94.1

97.3

0.9911

Standard deviation of SWV

0.3 ± 0.2

0.3 ± 0.2

0.4799

NA

NA

NA

NA

NA

NA

NA

Evaluation depth

2.1 ± 0.5

2.1 ± 0.6

0.8707

NA

NA

NA

NA

NA

NA

NA

  1. NA not applicable, CP cutoff point, Se sensibility, Sp specificity, PPV positive predictive value, NPV negative predictive value.