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Table 1 Images, score and each of the four operator’s average score for target images: parasternal long axis (PLAX) without and with color Doppler, parasternal short axis (PSAX) at two levels mitral and papillary, Apical 4 chamber without and with color Doppler, Mitral Valve (MV) Doppler flow

From: Virtual guidance: a new technique to empower point-of-care ultrasound in remote or extreme environments

Target images Operator 1 Operator 2 Operator 3 Operator 4 Total points
PLAX 11.5 9.5 11.5 10.8
PLAX color 24.0 23.5 24.0 10.5 20.5
PSAX mitral 26.0 11.0 18.5
PSAX papillary 25.5 17.0 24.5 16.0 20.8
Apical 4 20.0 23.0 21.0 16.0 16.25
Apical 4 color 15.0 17.5 14.0 15.5
MV Doppler 22.5 18.5 12.5 17.8
Avg. points 21.4 19.75 19.5 13.1