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Table 4 Perfusion distributions at all length scales at during O2 + iNO

From: Perfusion imaging heterogeneity during NO inhalation distinguishes pulmonary arterial hypertension (PAH) from healthy subjects and has potential as an imaging biomarker

Parameter

Controls

PAH

p-value

CV2 Q10-30 (× 10–3)

14.4 (6.65, 24.32)

13.4 (8.24, 17.43)

0.62

CV2 Q30-50 (× 10–3)

8.43 (4.68, 12.80)

7.16 (4.66, 9.59)

0.46

CV2 Q50-70 (× 10–3)

4.62 (2.44, 6.07)

4.04 (2.50, 6.48)

0.68

CV2 Q70-90 (× 10–3)

2.61 (1.29, 3.26)

2.32 (1.48, 3.91)

0.72

CV2 Q90-110 (× 10–3)

1.51 (0.75, 1.98)

1.40 (1.04, 2.06)

0.70

CV2 Q>110 (× 10–3)

9.56 (5.46, 20.68)

4.66 (4.05, 5.23)

0.10

  1. CV2Q(length scale): squared coefficient of variation in perfusion quantifying spatial heterogeneity in regional perfusion in the denoted length scale range (mm)
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Respiratory Research

ISSN: 1465-993X

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