Abstract
After autopsy 12 human coronary arteries were investigated by intracoronary ultrasound in order to measure the vessel wall dimensions and to detect damage on the vessel wall architecture after balloon angioplasty. Histology revealed artherosclerosis in 11/12 arteries. A total of 41 representative coronary segments were selected for further off-line ultrasound and histological analysis. Intracoronary ultrasound and histological measurements of the vessel wall thickness after balloon dilatation demonstrated a good correlation between the maximum thickness of the intima (histology 0.62 mm vs. intracoronary ultrasound 0.65 mm, r = 0.87) and the intima-media complex (0.80 mm vs. 0.83 mm, r = 0.87), in contrast to a weak one between the minimum thickness (r = 0.46 and r = 0.37). A total of 21 cases of damage occurred during angioplasty; intracoronary ultrasound detected 17. Further analysis showed that it imaged 10 of 11 cases of damage involving more than 30° of the vessel circumference and 7 of 10 cases of damage involving less than 30° of the vessel circumference. After balloon angioplasty of diseased coronary arteries, intracoronary ultrasound is therefore reliable in measuring the maximum wall thickness and in imaging damage involving more than 30° of the vessel wall circumference.
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Voigtländer, T., Rupprecht, HJ., Britten, M. et al. In vitro examination of the coronary artery wall after balloon angioplasty using intracoronary ultrasound. Int J Cardiovasc Imaging 14, 65–70 (1998). https://doi.org/10.1023/A:1005846615032
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DOI: https://doi.org/10.1023/A:1005846615032