Semiautomatic Assessment of Respiratory Motion in Dynamic MRI – Comparison with Simultaneously Acquired Spirometry

Abstract

DMRI with semiautomatic measurement of thoracic diameters makes measurement of realistic volume-time and flow-volume curves from single lungs possible. The derived single lung Tiffeneau Index shows good agreement to spirometry and could be valuable to supplement global spirometric measurements with functional data from single lungs.

A Hybrid Breath Hold and Continued Respiration-Triggered Technique for Time-Resolved 3D MRI Perfusion Studies in Lung Cancer

“…Furthermore, dynamic CT suffers from limited coverage on the z-axis with currently only 2 cm [24]. As in previous publications [25], we used a two-dimensional trueFISP sequence to assess existing motion of the lung and embedded lesions. The mean breath-dependent motion was measured as a reference for the underlying obstacle to be mastered in prolonged T 1-weighted imaging.…”