Is color M-mode echocardiography more reproducible than conventional M-mode echocardiography for septal-to-posterior wall motion delay measurements?
Our findings indicate that the color Doppler technique is more reproducible than conventional gray-scale M-mode technique to assess SPWMD. These findings suggest that the color Doppler M-mode may be a superior marker of the SPWMD measurement and predictor of left ventricular (LV) remodeling after cardiac resynchronization therapy.
  The exceptionally strong relations of P3 latency with basal ganglia volumes in carriers suggest that the P3 may provide a marker for disease progression in HD.