Respiratory Research

Table 1 Results of Tissue Fractions in Prone Versus Supine Positions

From: Quantitative CT-based image registration metrics provide different ventilation and lung motion patterns in prone and supine positions in healthy subjects

Variable	Region	Prone	Supine	P value
TF_IN	Upper	0.151	0.150	0.713
	RML	0.167	0.142	1.8 × 10⁻³
	Lower	0.147	0.163	0.003
TF_EX	Upper	0.253	0.235	0.127
	RML	0.277	0.211	1.5 × 10⁻⁶
	Lower	0.243	0.295	0.001

All values are expressed as means. RML Right middle lobe, TF_IN Tissue fraction on inspiratory scan, TF_EX Tissue fraction on expiratory scan

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ISSN: 1465-993X

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