Regional ejection fraction and regional area strain for left ventricular function assessment in male XXXX after first-time @entity583 .

@entity1 @entity583 @entity2287 @entity9568
In this work, we present a method to assess left ventricle (LV) regional function from cardiac magnetic resonance (CMR) imaging based on the @entity9568 ( @entity9568 ) and regional area strain (RAS). CMR scans were performed for 30 @entity1 after first-time @entity583 ( @entity583 ) and nine age- and sex-matched healthy volunteers. The CMR images were processed to reconstruct three-dimensional LV geometry, and the @entity9568 and RAS in a 16-segment model were computed using our proposed methodology. The method of computing the @entity9568 was tested and shown to be robust against variation in user input. Furthermore, analysis of data was feasible in all @entity1 and healthy volunteers without any exclusions. The @entity9568 correlated well with the RAS in a nonlinear manner (quadratic fit-R(2) = 0.88). In @entity1 after first-time @entity583 , the @entity9568 and RAS were significantly reduced across all 16 segments ( @entity9568 : p < 0.05; RAS: p < 0.01). Moreover, the @entity9568 and RAS significantly decreased with the extent of transmural scar obtained from late @entity2287 -enhanced CMR images. In addition, we show that the @entity9568 and RAS can be used to identify regions with compromised function in the @entity1 with preserved global ejection fraction with reasonable accuracy (more than 78%). These preliminary results confirmed the validity of our approach for accurate analysis of LV regional function. Our approach potentially offers physicians new insights into the local characteristics of the myocardial mechanics after a @entity583 .
