Skip to main content

Table 2 Summary of task 2 results. Mean value (M) of the used time and mean value (M) of the mistakes made (a = automatically measured and m = manually measured) for the 2D and 3D system as well as the corresponding mean difference (MD) between the two systems. Additionally the correlating P-values for the difference in time and mistakes of the Group A and B put together

From: A laparoscopic study investigating 3D vs 2D imaging systems using a pelvitrainer model with experts, non-experts, and students

  Group A Group B
Mistakes
(a)
Mistakes (m) Time
(s)
Mistakes (a) Mistakes (m) Time
(s)
Student M 2D 1.91 5.45 137 4.22 6.00 162
M 3D 3.91 2.27 159 2.89 2.56 135
MD 2D-3D −2.00 3.18 −22 1.33 3.44 27
Non-experts M 2D 4.30 4.82 100 1.00 4.75 90
M 3D 3.36 2.64 106 3.00 2.50 83
MD 2D-3D 0.94 2.18 −5 −2.00 2.25 7
Experts M 2D 10.00 4.17 81 5.88 4.44 101
M 3D 2.50 2.20 79 2.00 0.88 80
MD 2D-3D 7.50 1.97 2 3.88 3.57 21
  P-value Mistakes Group A + B
0.7902
Mistakes Group A + B
0.6275
Time Group A + B
0.0041