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. 2018 Jan 26;13(1):e0191870. doi: 10.1371/journal.pone.0191870

Fig 5. 3D EIT images showing the respiration by means of standard deviation (SD) images on the five planes L1 (highest) to L5 (lowest) for the nine volunteers (a) to (i), in supine position.

Fig 5

The images of each subject (each column) were scaled to an individual color scale and show the last minute in the first recovery sequence (task T5). Prior to SD calculation the images were filtered using a 2nd-order Butterworth bandpass with fc = {0.04, 0.5} Hz.