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Table 2 Lung function values of subjects S10 to S13 and P1 to P2

From: Does quantitative lung SPECT detect lung abnormalities earlier than lung function tests? Results of a pilot study

Subject FEV1 (% pred) FVC (% pred) FEV1/FVC (% pred) TLC (% pred) RV (%pred) RV/TLC (%pred) DLCOc (%pred) Significant (≥12%) change of FEV1 after bronchodilator AUC(CV > 20%) [%]
S10 125 119 107 - - - 85 No 39
S11 114 114 102 103 96 93 95 No 41
S12 89 91 98 106 128 120 76 No 47
S13 91 94 98 - - - - - 47
P1 79 107 74 - - - 85 Yes 43
P2 40 57 72 132 214 165 38 No 61
  1. Subjects with AUC(CV > 20%) values of more than 37%. Subjects S10 to S13 are listed in order of increasing AUC(CV > 20%) value. FEV1, forced expiratory volume over one second; FVC, forced vital capacity; TLC, total lung capacity; RV, residual volume; DLCOc, single breath dilution carbon monoxide test adjusted for haemoglobin concentration in the blood. Lung function values without bronchodilator use are reported as percentage of predicted reference values (% pred).