Up or down? A randomized trial comparing image orientations during transvaginal ultrasound training
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Up or down? A randomized trial comparing image orientations during transvaginal ultrasound training. / Taksøe-Vester, Caroline; Dreisler, Eva; Andreasen, Lisbeth A; Dyre, Liv; Ringsted, Charlotte; Tabor, Ann; Tolsgaard, Martin G.
I: Acta Obstetricia et Gynecologica Scandinavica, Bind 97, Nr. 12, 2018, s. 1455-1462.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Up or down?
T2 - A randomized trial comparing image orientations during transvaginal ultrasound training
AU - Taksøe-Vester, Caroline
AU - Dreisler, Eva
AU - Andreasen, Lisbeth A
AU - Dyre, Liv
AU - Ringsted, Charlotte
AU - Tabor, Ann
AU - Tolsgaard, Martin G
N1 - © 2018 Nordic Federation of Societies of Obstetrics and Gynecology.
PY - 2018
Y1 - 2018
N2 - INTRODUCTION: There is no international consensus on the orientation of transvaginal ultrasound images and no evidence exists to support the superiority of one image orientation over the other. The aim of this study was to compare learning curves and skills transfer in a group of novices randomized to top-down or bottom-up image orientation, and to determine whether individual preferences for image orientation affect learning and skills transfer.MATERIAL AND METHODS: 60 senior medical students, with no prior ultrasound experience, were randomized to orient the image top-down or bottom-up during training on an ultrasound simulator until attaining expert levels of performance. Participants then completed a transfer test involving a systematic ultrasound examination on a physical mannequin using real ultrasound equipment. Performance was assessed during the transfer test by two independent raters using the objective structured assessment of ultrasound skills (OSAUS) score and a global rating score.RESULTS: The bottom-up group reached the expert level with significantly fewer attempts than did the top-down group [median ± interquartile range: 4 ± 2 vs 5 ± 3] (U = 285.5, P = 0.014). The bottom-up group used less time to achieve the expert level (median ± interquartile range: 3 h 2 m ± 1 h 14 m vs 3 h 28 m ± 2 h 21 m) (U = 301.5, P = 0.029). The two groups performed similarly during the transfer test with respect to their OSAUS scores (top-down 56.7% vs bottom-up 53.2%, P = 0.13). The global rating scores were higher in the top-down group (top-down 57.1% vs bottom-up 50.0%, P = 0.02).CONCLUSIONS: Orientation of the images bottom-up rather than top-down, led to a steeper learning curve, but had little or no impact on the subsequent transfer of skills.
AB - INTRODUCTION: There is no international consensus on the orientation of transvaginal ultrasound images and no evidence exists to support the superiority of one image orientation over the other. The aim of this study was to compare learning curves and skills transfer in a group of novices randomized to top-down or bottom-up image orientation, and to determine whether individual preferences for image orientation affect learning and skills transfer.MATERIAL AND METHODS: 60 senior medical students, with no prior ultrasound experience, were randomized to orient the image top-down or bottom-up during training on an ultrasound simulator until attaining expert levels of performance. Participants then completed a transfer test involving a systematic ultrasound examination on a physical mannequin using real ultrasound equipment. Performance was assessed during the transfer test by two independent raters using the objective structured assessment of ultrasound skills (OSAUS) score and a global rating score.RESULTS: The bottom-up group reached the expert level with significantly fewer attempts than did the top-down group [median ± interquartile range: 4 ± 2 vs 5 ± 3] (U = 285.5, P = 0.014). The bottom-up group used less time to achieve the expert level (median ± interquartile range: 3 h 2 m ± 1 h 14 m vs 3 h 28 m ± 2 h 21 m) (U = 301.5, P = 0.029). The two groups performed similarly during the transfer test with respect to their OSAUS scores (top-down 56.7% vs bottom-up 53.2%, P = 0.13). The global rating scores were higher in the top-down group (top-down 57.1% vs bottom-up 50.0%, P = 0.02).CONCLUSIONS: Orientation of the images bottom-up rather than top-down, led to a steeper learning curve, but had little or no impact on the subsequent transfer of skills.
KW - Clinical Competence
KW - Denmark
KW - Education, Medical, Undergraduate/methods
KW - Female
KW - Gynecology/education
KW - Humans
KW - Learning Curve
KW - Simulation Training
KW - Ultrasonography/methods
KW - Vagina/diagnostic imaging
U2 - 10.1111/aogs.13444
DO - 10.1111/aogs.13444
M3 - Journal article
C2 - 30132792
VL - 97
SP - 1455
EP - 1462
JO - Acta Obstetricia et Gynecologica Scandinavica
JF - Acta Obstetricia et Gynecologica Scandinavica
SN - 0001-6349
IS - 12
ER -
ID: 218001622