Table 2 Summary of the change in feature difference between expert and trainees cohort
From: Change in economy of ultrasound probe motion among general medicine trainees
Metric | Change in the difference of feature (trainee minus expert) per day* | Confidence intervals accounting for multiplicity** |
|---|---|---|
Gyroscopic movements in rads/s | ||
Along X axis or tilting | − 10.9 rads/s/day | − 19.31–4.21 rads/s/day |
Along Y axis or rotation | − 9.14 rads/s/day | − 19.00 to − 4.43 rads/s/day |
Along Z axis or rocking | − 4.66 rads/s/day | − 9.53 to − 0.02 rads/s/day |
Translational movements (in cm/s2) | ||
X path or fanning | − 7.53 cm/s2/day | − 15.42 to 0.33 cm/s2/day |
Y path or compression | − 1.52 cm/s2/day | − 2.67 to − 0.374 cm/s2/day |
Z path or sliding | − 1.64 cm/sec2/day | − 2.90 to − 0.84 cm/s2/day |
Other probe motion data | ||
Smoothness (m/s3) | − 0.47 (m/s3) /day | − 0.85 to − 0.11 m/s3 /day |
Study time (s) | − 6.32 s/day | − 10.98 to − 1.66 s/day |
Total path (cm) | − 3.12 cm/day | − 6.2 to − 0.50 cm/day |