MRI-based strain and strain rate analysis of left ventricle: a modified hierarchical transformation model

MRI-based strain and strain rate analysis of left ventricle: a modified hierarchical transformation model

BACKGROUND Different from other indicators of cardiac function, such as ejection fraction and transmitral early diastolic velocity, myocardial strain is promising to capture subtle alterations that result from early diseases of the myocardium. In order to extract the left ventricle (LV) myocardial strain and strain rate from cardiac cine-MRI, a modified hierarchical transformation model was pro...

Strain and strain rate analysis of the right ventricle in patients with hypoplastic left heart syndrome

Introduction Assessment of right ventricular (RV) function in patients with hypoplastic heart syndrome (HLHS) is essential, but echocardiographic assessment remains largely subjective and RV volume quantification by CMR is time consuming. Purpose To determine whether software designed for analysis of echocardiograms can be adapted to evaluate strain and strain rate of the RV in CMR images from ...

Strain analysis and visualization: left ventricle of a heart

Clinical utility of computational models is crucial in the applications of medical data visualization. Previously we have developed a new class of volumetric models whose parameters are functions in conjunction with physically based deformable modeling framework, and have applied the technique to estimate the left ventricular (LV) wall motion. We have successfully showed that the model paramete...

Strain rate imaging of the left ventricle by ultrasound . Feasibility

assessment of left atrial function after percutaneous coronary intervention: a doppler-based strain and strain rate study

conclusions pci was accompanied by some improvement in left atrial deformation indices as assessed by tissue doppler imaging. revascularization can, therefore, improve patient outcome. results regarding changes in left trial functional parameters after pci, those such as the strain of the septal wall and the anterior and inferior walls and the strain rate of the anterior and lateral walls signi...