ArticleJapanese journal of radiology2024
Multi-modal evaluation of respiratory diaphragm motion in chronic obstructive pulmonary disease using MRI series and CT images.
Article in Japanese journal of radiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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The trial behind it
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Who cites it
3 citing papers in PubMed.
- Inspiratory Muscle Training for Patients With Chronic Obstructive Pulmonary Disease: A Narrative Review.Cureus · 2026Review
- Diaphragm physiological similarity index (DPSI): a de Novo speckle-tracking ultrasound metric for HFNC adjustment in acute respiratory failure.Critical care (London, England) · 2026Article
- The Glymphatic System and Diaphragmatic Dysfunction in Patients with Chronic Obstructive Pulmonary Disease and Chronic Heart Failure: The Importance of Inspiratory Rehabilitation Training.Journal of cardiovascular development and disease · 2025Review
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
purposeChronic obstructive pulmonary disease (COPD), characterized by airflow limitation and breathing difficulty, is usually caused by prolonged inhalation of toxic substances or long-term smoking habits. Some abnormal features of COPD can be observed using medical imaging methods, such as magnetic resonance imaging (MRI) and computed tomography (CT). This study aimed to conduct a multi-modal analysis of COPD, focusing on assessing respiratory diaphragm motion using MRI series in conjunction with low attenuation volume (LAV) data derived from CT images. MATERIALS AND
methodThis study utilized MRI series from 10 normal subjects and 24 COPD patients, along with thoracic CT images from the same patients. Diaphragm profiles in the sagittal thoracic MRI series were extracted using field segmentation, and diaphragm motion trajectories were generated from estimated diaphragm displacements via registration. Re-sliced sagittal CT images were used to calculate regional LAVs for four distinct lung regions. The similarities among diaphragm motion trajectories at various positions were assessed, and their correlations with regional LAVs were analyzed.
resultsCompared with the normal subjects, patients with COPD typically exhibited fewer similarities in diaphragm motion, as indicated by the mean normalized correlation coefficient of the vertical motion component (0.96 for normal subjects vs. 0.76 for severity COPD patients). This reduction was significantly correlated with the LAV% in the two lower lung regions with a regression coefficient of 0.81.
conclusionOur proposed evaluation method may assist in the diagnosis and therapy planning for patients with COPD.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.