Magnetic resonance imaging-based spirometry for regional assessment of pulmonary function

In this work MRI‐based spirometry is presented as a method for noninvasively assessing pulmonary mechanical function on a regional basis. A SPAMM tagging sequence was modified to allow continuous dynamic imaging of the lungs during respiration. A motion‐tracking algorithm was developed to track material regions from time‐resolved grid‐tagged images. Experiments were performed to image the lungs during quiet breathing and volumetric strain was...