Search results for " open-chest cardiac surgery"

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Cardiac kinematic parameters computed from video of in situ beating heart

2017

AbstractMechanical function of the heart during open-chest cardiac surgery is exclusively monitored by echocardiographic techniques. However, little is known about local kinematics, particularly for the reperfused regions after ischemic events. We report a novel imaging modality, which extracts local and global kinematic parameters from videos of in situ beating hearts, displaying live video cardiograms of the contraction events. A custom algorithm tracked the movement of a video marker positioned ad hoc onto a selected area and analyzed, during the entire recording, the contraction trajectory, displacement, velocity, acceleration, kinetic energy and force. Moreover, global epicardial veloc…

Malemedicine.medical_specialtyBeating heartSystoleVideo RecordingCardiac kinematic parametersFOS: Physical sciencesMyocardial ReperfusionKinematics030204 cardiovascular system & hematologyQuantitative Biology - Quantitative MethodsArticleDisplacement (vector)03 medical and health sciencesAcceleration0302 clinical medicineDiastoleInternal medicinemedicineAnimalsHumansComputer Simulation030212 general & internal medicineCoronary Artery BypassAtrioventricular BlockTissues and Organs (q-bio.TO)Quantitative Methods (q-bio.QM)PhysicsLive videoMultidisciplinaryopen-chest cardiac surgeryReproducibility of ResultsQuantitative Biology - Tissues and OrgansHeartPhysics - Medical Physicscontact-free and non-invasive modeMyocardial ContractionBiomechanical PhenomenaRatsCardiac surgeryCardiac kinematic parameters open-chest cardiac surgery contact-free and non-invasive modemedicine.anatomical_structureParticle image velocimetryFOS: Biological sciencesCardiologyFemaleMedical Physics (physics.med-ph)RheologyArteryScientific Reports
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