Fig. 4
From: A demonstration of high field-of-view stability in hands-free echocardiography
CW-SSIM indices and interquartile ranges of the apical and parasternal windows. a The CW-SSIM indices of the hands-free and manually obtained datasets. In the apical four chamber view, a significant difference was detected between the median CW-SSIM indices of the third exercise periods. b The variability of the CW-SSIM data expressed using the interquartile ranges. In both views, the interquartile ranges appeared to be similar when comparing the hands-free and manually obtained acquisitions