Abstract #2913

3D Lung Ventilation 1H Imaging Using a Respiratory Self-Navigated Stack-of-Stars Sequence in Comparison to 2D Fourier Decomposition

Andreas Voskrebenzev^1,2, Marcel Gutberlet^1,2, Frank Wacker^1,2, and Jens Vogel-Claussen^1,2

¹Institute of Diagnostic and Interventional Radiology, Hanover, Germany, ²German Centre for Lung Research, Hanover, Germany

Fourier Decomposition (FD) is a lung function imaging technique with a high clinical potential. Nevertheless the 2D acquisition leads to long acquisition times for complete lung scans and the 3D breathing motion might lead to errors in the ventilation measurements. Self-navigated sequences offer the possibility to reconstruct images in different respiratory states. Using a stack-of-stars sequence, a method for 3D fractional ventilation (FV) imaging is demonstrated for six healthy volunteers and compared with FV calculated by 2D FD. The two methods show a good agreement. Additionally, 3D FV depicts 3D lung motion, which is not adequately detected with 2D FD.

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