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Figure 5
Vertical distribution of lung tissue oscillations for input frequencies (a) and for heart frequencies (b). The average expansion is calculated for each row of interrogation windows in the image analysis. Due to the frequency of the heart (6.87 Hz) and its second harmonic (20.3 Hz) there was interference with the 6.5 Hz and 20.5 Hz oscillations, therefore both curves have been omitted from this graph. There is a clear decrease in the expansion as the frequency increases. Also it can be seen that the vertical distribution of lung tissue oscillations is more uniform at the higher frequencies. See supporting information figures for the same data for the other animals, highlighting the consistent patterns that were seen across the three subjects.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 23| Part 1| January 2016| Pages 324-330
doi:10.1107/S1600577515021700
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