Rapid lung volumetry with ultrafast dynamic MRI during forced vital capacity (FVC) correlation with spirometry
Swift A, Woodhouse N, Fichele S, Wild J, van Beek E, Mills G, Seidel J
University of Sheffield
The purpose of this study was to investigate the feasibility of using ultrafast 2D imaging to accurately sample the Forced Vital Capacity (FVC) manouever. The volume exhaled in the first second (FEV1) is the most clinically useful spirometric index, as such temporal resolution of regional volume/time curves is paramount. Using an elliptical model of the axial cross-section of the lungs enabled rapid volume-time curves to be derived from interleaved coronal and saggittal 2D scans. The results show a good correlation with spirometry and represent the first time an FVC manoeuver has been accurately traced with MRI.