1. Permanent wall stretching in porcine coronary and internal mammary arteries 
Carolien J van Andel, MS, PhD, Peter V Pistecky, MS, Paul F Gründeman, MD, PhD, Marc P Buijsrogge, MD, PhD, Cornelius Borst, MD, PhD 
The Annals of Thoracic Surgery 
Volume 76, Issue 3, Pages (September 2003)
DOI: /S (03)

2. Fig 1
Stretch device that can apply a permanent longitudinal extension to the arterial wall in vivo, consisting of two bows with needles (A and B) and a screw (C). The dimensions of the device are given in millimeters. M2 = metric thread, diameter 2 mm.
The Annals of Thoracic Surgery  , DOI: ( /S (03) )

3. Fig 2
Longitudinal section of the stretching device showing how the device is fixed onto the arterial wall. The histologic section was taken in the middle of the stretched area.
The Annals of Thoracic Surgery  , DOI: ( /S (03) )

4. Fig 3
(A) Cross-section of the left anterior descending coronary artery in which the most intimal hyperplasia was found. Only a thin rim of intimal hyperplasia is present at the site of 80% wall elongation, indicated by the former position of the screw of the stretch device. (B) Enlargement from Figure A (hematoxylin-eosin stain). (IH = intimal hyperplasia.)
The Annals of Thoracic Surgery  , DOI: ( /S (03) )