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. Author manuscript; available in PMC: 2013 Aug 5.
Published in final edited form as: Ann Intern Med. 2011 Jul 5;155(1):33–38. doi: 10.7326/0003-4819-155-1-201107050-00005

Table 2. Pocket Mobile Echocardiography (PME) and Transthoracic Echocardiography (TTE) interpretation.

Includes visualization, concordance, and inter-observer agreement by kappa values.

Transthoracic
echo parameter
(% abnormal)
Visualized (%) True Positive + True Negative
(% of visualized/% of total scanned)
Variability (κ)
Overall Attendings Fellows Overall Attendings Fellows Overall
(4 raters)
Attendings
(2 raters)
Fellows
(2 raters)
EF
Low – 14 %
95 93 97 95/91 97/91 93/91 0.71 0.95 0.68
WMA*
Abnormal – 13 %
83 85 81 89/74 90/77 87/71 0.72 0.90 0.47
LVEDD
Enlarged – 15 %
95 95 94 92/87 94/90 91/85 0.67 0.82 0.55
Pericardial effusion
Significant – 0 %
94 94 94 n/a n/a n/a n/a n/a n/a
Mitral valve
Abnormal – 7 %
90 90 90 85/77 88/79 82/74 0.35 0.59 0.29
Aortic valve
Abnormal – 6 %
82 86 80 96/79 97/83 95/76 0.76 0.84 0.75
IVC size
Dilated – 12 %
75 73 77 78/58 81/59 74/57 0.42 0.84 0.39
*

TTE comparison image missing for WMA assessment in 1 patient

*

TTE comparison image missing for IVC assessment in 2 patients

Abbreviations: EF, ejection fraction; LV- EDD, left-ventricular end diastolic dimension; MV, mitral valve; WMA, wall motion abnormality; AV, aortic valve; IVC, inferior vena cava; k, kappa value.