Click on image to view larger version.

Figure 4 Cineangiograms (center) and IVUS images from a left circumflex lesion treated with DCA and adjunct PTCA after intervention (A) and at follow-up (B). Each IVUS image is accompanied by a duplicate image that is labeled (bottom images). In each of the labeled images, the EEM is outlined in black, and the lumen is outlined in white. A, After intervention, the proximal reference EEM CSA measured 11.4 mm², the lumen CSA measured 7.4 mm² and the P+M CSA measured 4.0 mm². After intervention, the lesion site EEM CSA measured 12.9 mm², the lumen CSA measured 7.1 mm² and the P+M CSA measured 5.6 mm². The residual lesion site percentage of plaque area was 44%. B, at follow-up, the reference segment EEM CSA decreased to 7.0 mm², the lumen CSA decreased to 2.5 mm², and the P+M CSA increased to 4.5 mm². At follow-up, the lesion site EEM CSA decreased to 6.0 mm², the lumen CSA was assumed to be the physical size of the IVUS imaging catheter (1.0 mm²), and the P+M CSA increased to 5.0 mm².