Quantification of the local heartwall motion by magnetic resonance myocardial tagging.
Sophisticated magnetic resonance tagging techniques provide powerful tools for the non-invasive assessment of the local heartwall motion towards a deeper fundamental understanding of local heart function. For the extraction of motion data from the time series of magnetic resonance tagged images and for the visualization of the local heartwall motion a new image analysis procedure has been developed. New parameters have been derived which allows quantification of the motion patterns and are highly sensitive to any changes in these patterns. The new procedure has been applied for heart motion analysis in healthy volunteers and in patient collectives with different heart diseases. The achieved results are summarized and discussed.
Stuber
M
M
Institute of Biomedical Engineering and Medical Informatics, University and ETH Zurich, Switzerland.
Nagel
E
E
Fischer
S E
SE
Spiegel
M A
MA
Scheidegger
M B
MB
Boesiger
P
P
D000465:Algorithms; D001024:Aortic Valve Stenosis / Q000473:pathology / Q000503:physiopathology; D002037:Bundle-Branch Block / Q000473:pathology / Q000503:physiopathology; D002302:Cardiac Output; D006332:Cardiomegaly / Q000473:pathology / Q000503:physiopathology; D002312:Cardiomyopathy, Hypertrophic / Q000473:pathology / Q000503:physiopathology; D003971:Diastole; D004699:Endocardium / Q000033:anatomy & histology / Q000502:physiology; D006321:Heart / Q000033:anatomy & histology / Q000502:physiology*; D006331:Heart Diseases / Q000473:pathology / Q000503:physiopathology; D006339:Heart Rate; D016027:Heart Transplantation / Q000473:pathology / Q000502:physiology; D006801:Humans; D006984:Hypertrophy; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D009200:Myocardial Contraction / Q000502:physiology; D009203:Myocardial Infarction / Q000473:pathology / Q000503:physiopathology; D010496:Pericardium / Q000033:anatomy & histology / Q000502:physiology; D012399:Rotation; D013599:Systole