Right main pulmonary artery distensibility on dynamic ventilation CT and its association with respiratory function

Oki, Tatsuya; Nagatani, Yukihiro; Ishida, Shota; Hashimoto, Masayuki; Oshio, Yasuhiko; Hanaoka, Jun; Uemura, Ryo; Watanabe, Yoshiyuki

doi:10.1186/s41747-024-00441-5

European Radiology Experimental

Table 3 Spearman’s rank correlations and coefficients of determination for CSA and spirometry or CSA and MLD or CSA and Goddard Classification Score for all cases and in patients with and without COPD

From: Right main pulmonary artery distensibility on dynamic ventilation CT and its association with respiratory function

			RV	%RV	TLC	RV/TLC	EFV₁/FVC	FEV₁ predicted	MLDmax	MLDmin	MLD CR	Goddard
Total	CSAC In	r	-0.032	-0.283	0.044	-0.200	0.073	-0.098	0.183	0.095	0.163	-0.243
		p-value	0.858	0.104	0.801	0.258	0.666	0.563	0.278	0.577	0.335	0.147
		R²	0.004	0.046	0.003	0.031	0.006	0.001	0.042	0.015	0.028	0.006
	CSAC Ex	r	-0.301	-0.443	-0.049	-0.377	0.039	0.038	0.266	0.099	0.257	-0.126
		p-value	0.083	0.009*	0.778	0.028*	0.820	0.825	0.111	0.561	0.124	0.456
		R²	0.048	0.153	0.000	0.118	0.018	0.012	0.060	0.035	0.031	0.101
	CSACR In	r	-0.085	-0.228	0.021	-0.246	0.086	-0.138	0.149	0.055	0.144	-0.231
		p-value	0.635	0.194	0.903	0.161	0.612	0.415	0.380	0.746	0.394	0.169
		R²	0.000	0.003	0.005	0.016	0.006	0.003	0.019	0.005	0.015	0.010
	CSACR Ex	r	-0.385	-0.472	-0.055	-0.505	0.025	0.006	0.234	0.030	0.256	-0.064
		p-value	0.024*	0.005*	0.756	0.002*	0.883	0.971	0.162	0.860	0.126	0.708
		R²	0.014	0.055	0.000	0.062	0.015	0.012	0.035	0.022	0.017	0.072
With COPD	CSAC In	r	-0.052	-0.407	0.105	-0.275	0.234	0.056	0.542	0.001	0.639	-0.139
		p-value	0.844	0.105	0.680	0.286	0.349	0.826	0.020*	0.997	0.004*	0.584
		R²	0.002	0.046	0.014	0.042	0.042	0.023	0.356	0.000	0.469	0.000
	CSAC Ex	r	-0.284	-0.446	0.157	-0.404	0.317	0.170	0.540	0.154	0.498	0.037
		p-value	0.268	0.073	0.533	0.107	0.200	0.499	0.021*	0.542	0.035*	0.885
		R²	0.034	0.175	0.015	0.159	0.001	0.002	0.399	0.114	0.151	0.162
	CSACR In	r	0.055	-0.176	0.143	-0.132	0.290	0.063	0.490	0.028	0.575	-0.111
		p-value	0.833	0.498	0.572	0.613	0.243	0.804	0.039*	0.913	0.013*	0.860
		R²	0.017	0.007	0.033	0.007	0.127	0.035	0.260	0.001	0.323	0.008
	CSACR Ex	r	-0.178	-0.306	0.244	-0.434	0.368	0.187	0.424	0.086	0.416	0.053
		p-value	0.495	0.232	0.329	0.082	0.132	0.458	0.079	0.735	0.086	0.834
		R²	0.004	0.009	0.050	0.054	0.018	0.000	0.314	0.101	0.107	0.081
Without COPD	CSAC In	r	-0.102	-0.277	-0.116	-0.211	0.056	-0.318	-0.075	0.119	-0.246	-0.316
		p-value	0.697	0.282	0.656	0.417	0.819	0.185	0.759	0.627	0.311	0.187
		R²	0.010	0.054	0.002	0.021	0.003	0.097	0.000	0.055	0.050	0.075
	CSAC Ex	r	-0.372	-0.500	-0.379	-0.341	0.033	-0.004	0.100	0.000	0.174	-0.424
		p-value	0.142	0.041*	0.134	0.181	0.892	0.986	0.684	1.000	0.477	0.070
		R²	0.183	0.269	0.120	0.081	0.001	0.003	0.011	0.003	0.013	0.033
	CSACR In	r	-0.331	-0.336	-0.180	-0.419	-0.065	-0.447	-0.177	0.088	-0.316	-0.298
		p-value	0.194	0.188	0.489	0.094	0.792	0.055	0.468	0.721	0.188	0.215
		R²	0.047	0.080	0.016	0.076	0.000	0.181	0.005	0.028	0.072	0.083
	CSACR Ex	r	-0.626	-0.681	-0.506	-0.581	0.009	-0.078	0.096	-0.075	0.254	-0.284
		p-value	0.007*	0.003*	0.038*	0.014*	0.972	0.751	0.694	0.759	0.293	0.238
		R²	0.352	0.428	0.235	0.188	0.018	0.006	0.011	0.000	0.026	0.012

COPD Chronic obstructive pulmonary disease, CSAC Ex Change of cross-sectional area during the exhalation phase, CSAC In Change of cross-sectional area during the inhalation phase, CSACR Ex Change ratio of cross-sectional area during the exhalation phase, CSACR In Change ratio of cross-sectional area during the inhalation phase, FEV₁ Forced expiratory volume in 1 s, FVC Forced vital capacity, Goddard Goddard Classification Score, MLD CR Change ratio in the mean lung density, RV Residual volume, TLC Total lung capacity, r Spearman rank correlation coefficient, R² coefficients of determination
For association with statistically significant correlation, r-value and p-value are demonstrated in bold normal and bold italic styles, respectively
^*p < 0.05

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