Volumetric motion quantification by 3D tissue phase mapped CMR

Journal of Cardiovascular Magnetic Resonance

Research

Jan Paul¹  Axel Bornstedt¹  Wolfgang Rottbauer¹  Volker Rasche¹  Peter Bernhardt¹  Anja Lutz²  G Ulrich Nienhaus³  Patrick Etyngier⁴ 

[1] Department of Internal Medicine II, University Hospital of Ulm, Ulm, Germany;Department of Internal Medicine II, University Hospital of Ulm, Ulm, Germany;Department of Diagnostic and Interventional Radiology, University Dusseldorf, Dusseldorf, Germany;Institute of Applied Physics and Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany;Medisys Research Lab, Philips Healthcare, Suresnes, France;

关键词: Velocity encoding;    3D-TPM;    Motion quantification parameters;    Myocardial motion;   

DOI  :  10.1186/1532-429X-14-74

 received in 2012-03-20, accepted in 2012-09-27,  发布年份 2012

来源: Springer

【 摘 要 】

BackgroundThe objective of this study was the quantification of myocardial motion from 3D tissue phase mapped (TPM) CMR. Recent work on myocardial motion quantification by TPM has been focussed on multi-slice 2D acquisitions thus excluding motion information from large regions of the left ventricle. Volumetric motion assessment appears an important next step towards the understanding of the volumetric myocardial motion and hence may further improve diagnosis and treatments in patients with myocardial motion abnormalities.MethodsVolumetric motion quantification of the complete left ventricle was performed in 12 healthy volunteers and two patients applying a black-blood 3D TPM sequence. The resulting motion field was analysed regarding motion pattern differences between apical and basal locations as well as for asynchronous motion pattern between different myocardial segments in one or more slices. Motion quantification included velocity, torsion, rotation angle and strain derived parameters.ResultsAll investigated motion quantification parameters could be calculated from the 3D-TPM data. Parameters quantifying hypokinetic or asynchronous motion demonstrated differences between motion impaired and healthy myocardium.Conclusions3D-TPM enables the gapless volumetric quantification of motion abnormalities of the left ventricle, which can be applied in future application as additional information to provide a more detailed analysis of the left ventricular function.

【 授权许可】

CC BY   
© Lutz et al.; licensee BioMed Central Ltd. 2012