phase imaging of gated radionuclide ventriculography was applied to the identification of cardiac activation patterns in patients with sinus rhythm ( n = 14 ) or with ventricular ( vvi ) - ( n = 28 ) , atrial ( aai ) - ( n = 3 ) or av-sequential ( ddd ) -pacing ( n = 17 ) .
C0018787
cardiac
C0018827
ventricular