Skip to main content

Table 2 Accuracy of CEUS compared to tissue diagnosis (primary analysis) and tissue diagnosis or follow-up imaging diagnosis (secondary analysis)a

From: Diagnostic accuracy of contrast-enhanced ultrasound for characterization of kidney lesions in patients with and without chronic kidney disease

  Reader 1 Reader 2 Combined readers
Tissue diagnosis
(N = 23)
Tissue or follow-up imaging
(N = 44)
Tissue diagnosis
(N = 23)
Tissue or follow-up imaging
(N = 44)
Tissue diagnosis
(N = 23)
Tissue or follow-up imaging
(N = 44)
Sensitivity 90%
(78%, 100%)
[19/21]
91%
(80%, 100%)
[20/22]
100%
(100%, 100%)
[21/21]
100%
(100%, 100%)
[22/22]
95%
(83%, 99%)
96%
(84%, 99%)
Specificity 0%
(0%, 0%)
[0/2]
59%
(39%, 80%)
[13/22]
0%
(0%, 0%)
[0/2]
41%
(20%, 61%)
[9/22]
0%
(0%, 0%)
50%
(32%, 68%)
Overall Accuracy 83%
(67%, 98%)
[19/23]
75%
(62%, 88%)
[33/44]
91%
(80%, 100%)
[21/23]
70%
(57%, 84%)
[31/44]
87%
(69%, 95%)
73%
(59%, 83%)
  1. aResults presented as accuracy metrics (95% CI) and [positive or negative reads/total reads]. CEUS images were read by 2 independent readers. Results were considered per reader and as a combination of the 2 readers. For combined reader result, generalized estimating equations were used considering two readers’ values as repeated measurements (or responses)