Representative cg2 and Pdet data series
for DO (left) and non-DO (right) bladders. Top row displays dual-axis plots of
both data series, Pdet and cg2. The red arrows
in (a) indicate the peaks associated with DO. The same series are shown in the
middle (cg2) and bottom (Pdet) rows are shown
with lower envelope (red) overlaid on the raw series (blue) (c,e,g,i) to
illustrate the decomposition of the raw series into ETP and LE series. The
separated ETP (blue) and LE (red) series used to calculate the signal index
(I) are shown in (d,f,h,j). Note that the identified
ensemble of peaks for the data series is the difference between the raw series
and the lower envelope.