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Fig. 2 | Critical Care

Fig. 2

From: Influence of different electrode belt positions on electrical impedance tomography imaging of regional ventilation: a prospective observational study

Fig. 2

Influence of belt position on electrical impedance tomography in patient 10. a TV/VT ratio depends on belt position. The ratio decreased in cranio-caudal direction (L1/ICS 4; L7/ICS 8). b Minute images of different layers in cranio-caudal direction were displayed as examples. Functional status images with automatically adjusted colour scales (assigning white to the maximum impedance change) are displayed on the left side. On the right side, colour scales were unadjusted to visualize interference. Images are a 32 × 32 pixel coloured matrix (white: positive/highest ∆Z; blue: medium ∆Z; black: impedance changes less than 10 %; purple: negative ∆Z, inverted signal). ICS intercostal space, L layer, TV/VT tidal impedance variation/tidal volume ratio

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Critical Care

ISSN: 1364-8535