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Phase-Resolved Functional Lung MRI Evaluation of Dynamic Hyperinflation Induced by Metronome-Paced Tachypnea in Patients with Chronic Obstructive Pulmonary Disease.
COPD
December 2025
Institute of Diagnostic and Interventional Radiology, Hannover Medical School, Hannover, Germany.
Hyperinflation in chronic obstructive pulmonary disease (COPD) patients worsens on exertion/exercise when breathing frequency increases. Fast breathing, paced at 40 breaths per minute using a metronome (metronome-paced tachypnea, MPT), induces dynamic hyperinflation (DH) and can be performed during MRI. MPT in combination with phase-resolved functional lung (PREFUL) MRI can be used to assess stress-driven ventilation dynamics globally and regionally.
View Article and Find Full Text PDF[A simple method to assess dynamic hyperinflation outside a pulmonary function test laboratory: The metronome-paced tachypnea test].
Rev Mal Respir
April 2025
Inserm, CNRS, PhyMedExp, Montpellier University, CHRU of Montpellier, Montpellier, France.
Lung dynamic hyperinflation (DH) is one of the main determinants of dyspnea in chronic respiratory disease patients. Producing evidence of DH is critical during dyspnea assessment, the objectives being to explain the cause, to target treatments, and to monitor their efficacy. The gold standard method consists in repeated measurement of inspiratory capacity (IC) during cardiopulmonary exercise testing (CPET).
View Article and Find Full Text PDFMRI-assessed Dynamic Hyperinflation Induced by Tachypnea in Chronic Obstructive Pulmonary Disease: The SPIROMICS-HF Study.
Radiol Cardiothorac Imaging
February 2025
From the Department of Biomedical Engineering (X.Z.) and Columbia Magnetic Resonance Research Center (CMRRC) (W.S.), Columbia University, New York, NY; Departments of Medicine (C.B.C., J.P.F.) and Radiology (J.P.F.), University of California at Los Angeles, Los Angeles, Calif; Department of Radiolog
Purpose To assess the repeatability of real-time cine pulmonary MRI measures of metronome-paced tachypnea (MPT)-induced dynamic hyperinflation and its relationship with chronic obstructive pulmonary disease (COPD) severity. Materials and Methods SubPopulations and InteRmediate Outcome Measures In COPD Study (SPIROMICS) (ClinicalTrials.gov identifier no.
View Article and Find Full Text PDFMetronome-Paced Tachypnea: A Simple, Repeatable Method for Inducing Dynamic Hyperinflation.
Am J Respir Crit Care Med
February 2024
Department of Medicine and.
Patients with Chronic Obstructive Pulmonary Disease Can Accurately Perform Home-Based Measurements of Inspiratory Capacity and Dynamic Hyperinflation.
COPD
April 2022
Department of Pulmonary Diseases, Radboud University Medical Centre, Nijmegen, The Netherlands.
Home-based lung function measurements can be used to capture day-to-day variations in symptoms in patients with chronic obstructive pulmonary disease (COPD). Although dynamic hyperinflation (DH) is clinically relevant, existing home-based measurements do not include its assessment. DH can be measured through inspiratory capacity (IC) measurements before and after metronome-paced tachypnea test (MPT).
View Article and Find Full Text PDF