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Table 2 Image acquisition time at the end of the first workshop expressed in seconds and presented in median and interquartile ranges [25%; 75%], and comparison with the acquisition time of the first trial

From: Detecting cervical esophagus with ultrasound on healthy voluntaries: learning curve

Try number

Target image acquisition time (in seconds)

pa

1

20.4 [10.6;41]

2

19.6 [10.2;33.2]

1

3

8.85 [6.2;21.6]

0.048

4

8.05 [5.5;13.5]

< 0.0006

5

7 [5.3;11.4]

< 0.0001

6

6.85 [4.25;10.5]

0.002

7

6.8 [4.22;11.4]

0.0005

8

5.3 [4.15;7.75]

< 0.0001

9

5.8 [4.08;10.2]

0.0004

10

5.02 [3.72;7.5]

< 0.0001

  1. aComparison with the acquisition time of the first trial