Pulmonary function tests (PFTs) of untreated and DS1 treated dogs at Week 13 post right lung irradiation.

Values are shown as means and standard deviations (SDs) at Week 13 (n = 5 for both groups).
P values were calculated between the control (No DS1 infusion) and the treated (+DS1 infusion) groups.
DLCO-Hct: Single breath diffusing capacity-hematocrit.
IC: Inspiratory capacity.
ERV: Expiratory reserve volume.
TLC: Total lung capacity.
RV: Residual volume directly obtained by neon dilution during the DLCO measurements.
FRC: Functional residual capacity.
Percentage (%) of PFTs was based on the pre-irradiation values.
N.S.: not significant.