Fig. 2

Changes in regional left ventricular function in segments in the CTO territory, comparing CTO PCI versus no-CTO PCI. Change in percentage segmental wall thickening (SWT) in all segments and dysfunctional segments in the CTO territory (a and b). Recovery of SWT was compared between baseline and 4 month follow-up in segments and between CTO PCI and no-CTO PCI (*)