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Figure 5 Proposed Algorithm for the Diagnosis and Risk Stratification of Patients With Suspected HCM
*Mean transverse LA diameter; **difference between the longest and shortest Q-Sm time intervals (beginning of Q-wave in ECG to onset of systolic annular motion by TDI) among 4 different LV basal myocardial segments. HCM = hypertorphic cardiomyopathy; IVS/PW = interventricular septum/posterior wall ratio; LA = left atrial; LAVI = left atrial volume index; LV = left ventricular; LVH = left ventricular hypertrophy; LVOT = left ventricular outflow tract; RT-3DE = real time-3 dimensional echocardiography; SAM = systolic anterior motion; TDI = tissue Doppler imaging; 2D-strain = 2 dimensional speckle tracking imaging.
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