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Fig. 2 | Journal of Cardiovascular Magnetic Resonance

Fig. 2

From: Atri-U: assisted image analysis in routine cardiovascular magnetic resonance volumetry of the left atrium

Fig. 2

Results from reading of the consecutive clinical sample (samples D1 and D2). a Representation of score received per case, processing step, and processing type (senior radiologist and Atri-U, 50 and 150 annotations respectively). The legends are listed at the bottom of the panel. The corresponding proportions are listed in Table 2. b Scatter plot of volumes obtained by the senior radiologist (sample D1) and Atri-U (sample D2) for the 50 cases that appeared in both samples, along with their histograms. The color coding corresponds to the highest scores given by the senior cardiologist during the rating of the time-saving potential, where Score 0: 100 percent time saving (no correction needed); Score 1: 50 percent time saving (minor correction needed); and Score 2: no time saving (major correction needed). For example, for the four datapoints with the red rim at the bottom of the graph, he scored the outputs of Atri-U as requiring a correction “from scratch”, while for two of them he independently scored the outputs of the senior radiologist as requiring minor correction (yellow center). The majority of cases were scored as requiring no or minor correction and their LAVImax correlate well between human and Atri-U. LAVImax = maximum left atrial volume index

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