Observational Study
Copyright ©The Author(s) 2021.
World J Clin Cases. Jul 26, 2021; 9(21): 5889-5899
Published online Jul 26, 2021. doi: 10.12998/wjcc.v9.i21.5889
Figure 2
Figure 2 Peak strain measurement. Tissue Doppler image (left), ultrasound image (right); region of interest 1 (ROI1, red dot) at the midpoint of the pleural line, ROI2 (yellow dot), 0.5 cm from the pleural line; strain-time curve of ROI1 (red curve), strain-time curve of ROI2 (yellow curve); peak strain of ROI1 (white arrow, dotted line), peak strain of ROI2 (white arrow, solid line).