Measuring diaphragmatic excursion using 4-dimensional ultrasound: a feasibility study.

ABSTRACT: Four-dimensional ultrasound (4DUS) could provide more accurate characterisation of diaphragm function than existing M-mode ultrasound approaches. Therefore, the aim of this study was to investigate the feasibility of a novel method for tracking diaphragm excursion from 4DUS data. 4DUS was acquired from 12 participants who exhibited a range of breathing patterns. A custom algorithm tracked, reconstructed, and parameterized diaphragm movement using a sphere of time-varying radius. To validate the algorithm, a randomly selected slice of the sphere was sampled and compared to visual analysis. Agreement between the visual analysis and the algorithm was characterised using a Bland-Altman analysis. A root mean squared error (RMSE) metric was also calculated to quantify the fit between the ultraso

SUBMITTER: Handley A 

PROVIDER: S-EPMC12457955 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature