[Correlation of the size of the residual volume measured by whole body plethysmography and the single breath helium dilution method].
The value of residual volume, intrathoracic gas volume, functional residual capacity and total lung capacity obtained by the method of body plethysmography and helium dilution method was correlated by single-breath diffusing capacity. These parameters were correlated in 22 patients who had had complete functional diagnostics of the lung: spirometry, flow volume curve, body plethysmography and single-breath diffusing capacity. All findings were within normal limits, which was a condition for selection of patients for our group. Statistically significant differences (p = 0.01) of t-test were established between residual volumes by the plethysmographic and helium dilution method of single-breath diffusing capacity. The residual volume obtained by body plethysmography showed higher values for 526 ml, or 30%. The intrathoracic gas volume showed higher values for 682 ml, or 17%. Inspite of the fact that values of RV obtained by two methods had statistically significant differences, they were still within normal limits, if presented as percent of the predicted value.
Popović-Grle
S
S
Pavicić
F
F
Bićanić
V
V
Babić
I
I
Lucić
S
S
Kujundzić
D
D
Richter
D
D
D000328:Adult; D001944:Breath Tests; D005260:Female; D006371:Helium; D006801:Humans; D008176:Lung Volume Measurements; D008297:Male; D008875:Middle Aged; D010993:Plethysmography, Whole Body; D011653:Pulmonary Diffusing Capacity; D012115:Residual Volume
D006371:Helium
Korelacija velicina rezidualnih volumena mjerenih pletizmografijom cijelog tijela i dilucijom helija metodom jednog udaha.