Table 3.

Substrate characterization

		Location of line of block (detected by ECGI)
Patient No	Substrate and motion abnormalities	Figure no.	Native rhythm	Biventricular pacing
1	Posterior or inferior of the heart were extensively scarred and noncontractile; anterior anteroseptal, anterolateral hypokinesis; akinesis of the basal-midinferoposterior wall, basal-midposterior wall	1C, 5A	Basal lateral LV, slow conduction in anterior LV	No
2	Anterior and anterolateral scarring; motion abnormalities in the inferior, posterior, lateral, anterior, septal, and apical walls	N/A	N/A	Anterior LV
3	Akinesis with scarring of the entire inferoposterior wall; most septum was infarcted along with the inferior wall	1D, 3B	No	Anterolateral LV
4	Severe hypokinesis of the apical wall	4B	Anterior LV	Anterior RV, slow conduction in lateral LV
5	Fixed anteroseptal, apical, inferior defects; anteroseptal/apical akinesis; inferior and posterolateral severe hypokinesis	1B, 3A	Anterior LV	Anterior LV
6	30-year-old large inferoapical and lateral myocardial infarction; inferoposterolateral and apical akinesia	6	N/A	Anterior and lateral LV
7	Scar involving the posterior inferior wall; small scar at apex; ischemia within the distal inferior wall	1A, 5B	Anterior LV	Anterior LV
8	Akinesis of the entire posterior wall; severe hypokinesis of the basal inferoseptal wall; akinesis of the middistal inferoseptal wall; hypokinesis of the basal-midinferior wall	4A	Anterior LV	Anterior and anterolateral LV

ECGI = electrocardiographic imaging; LV = left ventricle; RV = right ventricle.