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Table 2 VRI image characteristics in healthy volunteers before and after NPPV treatment

From: Vibration response imaging: a novel noninvasive tool for evaluating the initial therapeutic effect of noninvasive positive pressure ventilation in patients with acute exacerbation of chronic obstructive pulmonary disease

TP

VCG

DIG

MEFG

EVPG

RG

AVRIS

QLDD

T1

1.67 ± 0.78

4.36 ± 1.78

0.74 ± 0.21

1.15 ± 0.69

0.37 ± 0.15

8.51 ± 3.36

9.74 ± 4.53

T2

2.07 ± 0.98

4.87 ± 1.91

0.76 ± 0.18

1.23 ± 0.58

0.33 ± 0.15

8.53 ± 3.57

9.33 ± 7.65

t

4.55

1.68

0.12

0.36

0.44

0.05

0.71

P

0.04 a

0.20

0.73

0.55

0.52

0.82

0.41

  1. a Significant differences between T1 and T2.
  2. Abbreviation: TP = Time point, T1 = Before NPPV treatment, T2 = 15 min NPPV treatment, VCG = Grading of vibration curve, DIG = Grading of dynamic image, MEFG = Grading of maximal energy frame image, EVPG = Grading of expiratory vibration energy peak, RG = Grading of rales, AVRIS = Abnormal VRI score, QLDD = The QLD changes between the right and left lungs.
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Respiratory Research

ISSN: 1465-993X

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