ArticleLung India : official organ of Indian Chest Society2024
Correlation of diaphragmatic mobility and thickening assessed by lung ultrasound with severity of interstitial lung disease.
Article in Lung India : official organ of Indian Chest Society, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Diaphragm excursion and peak oxygen uptake in fibrotic interstitial lung diseases.ERJ open research · 2026Article
- Diaphragmatic Ultrasound in Fibrosing Interstitial Lung Disease: A Systematic Review of Current Evidence.Diagnostics (Basel, Switzerland) · 2026Review
- Association of Diaphragmatic Mobility and Thickening Fraction with Postoperative Pulmonary Complications in Patients Undergoing Thoracic Surgery and Their Application in Prediction.Therapeutics and clinical risk management · 2025Article
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6 authors.
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Abstract
backgroundStudies conducted in interstitial lung disease (ILD) patients to assess diaphragmatic excursion and thickening fraction suggest a weak to strong correlation with pulmonary function parameters. However, diaphragmatic excursion velocity, a novel imaging marker, has not been correlated with pulmonary function and high-resolution computed tomography (HRCT) fibrosis score in ILD patients previously.
methodsWe conducted a cross-sectional analytical study in 40 ILD patients during quiet (QB) and deep breathing (DB) to measure diaphragmatic thickening, excursion and excursion velocity using transthoracic ultrasound and correlated them with pulmonary function parameters and HRCT fibrosis score.
resultsMost diaphragm parameters in DB correlated more strongly with lung function parameters compared to quiet breathing. Right diaphragmatic excursion, during QB and DB, showed positive correlations with forced vital capacity (FVC) z-score (r = 0.591, 0.676) and diffusion capacity of the lung for carbon monoxide (DLCO) z-score (r = 0.437, 0.438), and negative correlations with HRCT fibrosis score (r = -0.439, -0.425), respectively. In addition, right diaphragmatic velocity exhibited positive correlations with FVC z-score (r = 0.388, 0.667) and DLCOz-score (r = 0.139, 0.412), and negative correlations with HRCT fibrosis score (r = -0.454, -0.445). Right diaphragm thickening fraction showed positive correlations with FVC z-score (r = 0.330, 0.460) and DLCOz-score (r = 0.400, 0.426), and negative correlations with HRCT fibrosis score (r = -0.199, -0.237). Similarly, right diaphragmatic thickness indicated positive correlations with FVC z-score (r = 0.526, 0.614) and DLCOz-score (r = 0.298, 0.298), and negative correlations with HRCT fibrosis score (r = -0.398, -0.401).
conclusionDiaphragmatic excursion velocity during DB showed a weak to moderate correlation with pulmonary function parameters and HRCT fibrosis score and may be utilized as a surrogate marker in ILD patients unable to perform pulmonary function tests or undergo sequential HRCT thorax in follow-up.
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