“…Axial shrinkage was set to be 15%, which was determined by the ratio of the length of the arterial section before and after harvesting from the animals in the Control-group. The blood pressure (78-116 mmHg) and waveform were adopted from previous reports 29,30 . Due to the presence of the collar, radial shrinkage rates were different in the region beyond the constrictions, at the constrictions and between the constrictions.…”