Table 3 Comparison between diagnostic performance of grey scale ultrasound, combined color Doppler vascular indices and their combination in the differentiation of benign and malignant thyroid nodules.

From: Computer-aided assessment of regional vascularity of thyroid nodules for prediction of malignancy

 

SEN (%)

SPEC (%)

NPV (%)

PPV(%)

Accuracy (%)

GSU alone

96.3

46.4

97.5

36.6

58.6

Combined vascular indices

70.4

71.4

88.2

44.2

71.2

Combined vascular indices + GSU

66.7

83.3

88.6

56.3

79.3

  1. GSU, grey scale ultrasound
  2. SEN, sensitivity
  3. SPEC, specificity
  4. NPV, negative predictive value
  5. PPV, positive predictive value.
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