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. Author manuscript; available in PMC: 2019 Dec 1.
Published in final edited form as: Ultrasound Med Biol. 2019 Sep 14;45(12):3128–3136. doi: 10.1016/j.ultrasmedbio.2019.08.009

Table 3.

Comparison of classification performance

Conventional US Conventional US + UMI
Sensitivity 96.43%
95% CI: 81.65%–99.91%
27/28		 100.00%
95% CI: 87.66%–100%
28/28
Specificity 17.39%
95% CI: 4.95%–38.37%
4/23		 47.83%
CI: 26.82%–69.41%
11/23
Positive predictive value 58.70%
95% CI: 53.76%–63.46%
27/46		 70.00%
95% CI: 61.21%–77.53%
28/40
Negative predictive value 80.00%
95% CI: 32.42%–97.09%
4/5		 100.00%
11/11
Diagnostic accuracy 60.78%
95% CI: 46.11%–74.16%
31/51		 76.47%
95% CI: 62.51%–87.21%
39/51

US = ultrasonography; UMI = ultra-sensitive ultrasound microvessel imaging; CI = confidence interval.