Skip to main content
. Author manuscript; available in PMC: 2012 Apr 10.
Published in final edited form as: Ann Biomed Eng. 2010 Jul 23;39(1):287–296. doi: 10.1007/s10439-010-0127-y

FIGURE 8.

FIGURE 8

EIS measurements in explants of human carotid arteries. (a) EIS measurements were performed on 6 control endoluminal sites and 6 lesion sites of human carotid arteries (n = 6). Average impedance values at frequency range 1000 Hz–300 kHz for control and lesion sites were presented as control vs. lesion, respectively (n = 6). Vertical bar denotes standard deviation. Baseline impedance measured from PBS solution alone was illustrated as a reference. (b) Differences in measured impedance from control and lesion sites were the most significant between operating frequency 10–100 kHz (* p<0.01, n = 6). (c) Immunohistochemistry was performed at the control site. (d) At the lesion site, subendothelial layers were stained positive with mAb4E6 for oxidized low density lipoprotein (oxLDL).