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Measurement of Pulmonary Perfusion under Expiratory and Inspiratory Breathing Conditions using PCASL-bSSFP Imaging at 1.5 Tesla

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Pohmann,  R
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Scheffler,  K
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

Martirosian, P., Pohmann, R., Schwartz, M., Kuestner, T., Kolb, M., Othman, A., et al. (2021). Measurement of Pulmonary Perfusion under Expiratory and Inspiratory Breathing Conditions using PCASL-bSSFP Imaging at 1.5 Tesla. Poster presented at 2021 ISMRM & SMRT Annual Meeting & Exhibition (ISMRM 2021).


Cite as: http://hdl.handle.net/21.11116/0000-0008-8633-7
Abstract
Pseudo-continuous-arterial-spin-labeling (PCASL) has been successfully applied in the lung providing high quality perfusion images. The pulmonary blood flow and the respiratory system interact closely: the intrathoracic pressure has impact on the venous return. Therefore, in this work, we evaluate the effects of intrathoracic pressure on lung perfusion by using PCASL imaging in end-expiratory and end-inspiratory breath-hold. PCASL imaging is able to detect changes of parenchymal lung perfusion caused by alterations of the intrathoracic pressure. Perfusion signal measured under end-inspiratory condition were noticeably reduced as compared to end-expiratory breath-hold. This correlated significantly with measured blood flow volume through the pulmonary trunk.