A Method for Visualization of Parenchyma and Airspaces from 3D Ultra-Fast Balanced SSFP Imaging of the Lung at 1.5T

Only recently, a Fourier decomposition (FD) method was suggested to extract perfusion and ventilation information (parenchyma density) from a time series of co-registered 2D images. Generally, FD requires dynamic sampling with high temporal resolution and nonrigid image registration, currently limiting this technique to 2D only. Here, we introduce a simple method to visualize regional parenchyma density (ventilation) directly and in 3D using high-resolution isotropic ultra-fast balanced steady state free precession (bSSFP) scans at 1.5T acquired within a single breath-hold.

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