ArticleJournal of magnetic resonance imaging : JMRI2021
Regional Gas Exchange Measured by
Article in Journal of magnetic resonance imaging : JMRI, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
18 citing papers in PubMed.
- Effect of indacaterol/glycopyrronium on ventilation and perfusion in COPD: a randomized trial.Respiratory research · 2022Trial
- Characterizing chronic obstructive pulmonary disease using quantitative MRI biomarkers.The British journal of radiology · 2026Review
- Visualizing Improvements in Airway Dysfunction After Inhaled Therapy in Patients With Uncontrolled Asthma: A Narrative Review.Advances in therapy · 2025Review
- Design and Implementation of a Multi-Center Trial ofJournal of magnetic resonance imaging : JMRI · 2025Article
- Establishing standardized healthy reference distributions and values for multisiteMagnetic resonance in medicine · 2025Article
- Post-COPD: Can Emphysema Be Repaired?American journal of respiratory and critical care medicine · 2025Article
- Hyperpolarized Xenon-129 MRI: Narrative Review of Clinical Studies, Testing, and Implementation of Advanced Pulmonary In Vivo Imaging and Its Diagnostic Applications.Diagnostics (Basel, Switzerland) · 2025Review
- UltrasensitiveAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Review
- A thermally polarized, dissolved-phaseJournal of magnetic resonance (San Diego, Calif. : 1997) · 2025Article
- Association of moderate-to-vigorous physical activity with reduction of acute exacerbation in COPD patients using a dual ultra-long-acting bronchodilators.Scientific reports · 2024Article
- HyperpolarizedJHLT open · 2024Article
- Functional gas exchange measures onFrontiers in medicine · 2024Article
- Lung Volume Dependence and Repeatability of HyperpolarizedRadiology. Cardiothoracic imaging · 2023Article
- Functional imaging in asthma and COPD: design of the NOVELTY ADPro substudy.ERJ open research · 2023Article
- Childhood to adulthood: Accounting for age dependence in healthy-reference distributions inMagnetic resonance in medicine · 2023Article
- Targeted Imaging of Lung Cancer with HyperpolarizedCancers · 2022Article
- Investigating the impact of RF saturation-pulse parameters on compartment-selective gas-phase depolarization with xenon polarization transfer contrast MRI.Magnetic resonance in medicine · 2022Article
- Disease activity in COPD: time to make imaging biomarkers a PET project?ERJ open research · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
backgroundHyperpolarized PURPOSE: To characterize changes in STUDY TYPE: Prospective. POPULATION: Seventeen COPD subjects (GOLD II/III classification per Global Initiative for Chronic Obstructive Lung Disease criteria) were imaged before and after 2 weeks of LABA/LAMA therapy. FIELD STRENGTH/SEQUENCES: Dedicated ventilation imaging used a multi-slice 2D gradient echo sequence. Three-dimensional images of ventilation, barrier uptake, and RBC transfer used an interleaved, radial, 1-point Dixon sequence. Imaging was acquired at 3 T. ASSESSMENT: STATISTICAL TESTS: Paired t-test, Pearson correlation coefficient (r).
resultsBaseline ven
conclusionLABA/LAMA therapy tended to preferentially improve ventilation in subjects whose LEVEL OF EVIDENCE: 1 TECHNICAL EFFICACY STAGE: 4.
Indexed as
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What OpenQuestion holds
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 OpenQuestion graph.