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Early- and Long-Term Intravascular Ultrasound and Angiographic Findings After Bioabsorbable Magnesium Stent Implantation in Human Coronary Arteries Ron Waksman, Raimund Erbel, Carlo Di Mario, Jozef Bartunek, Bernard de Bruyne, Franz R. Eberli, Paul Erne, Michael Haude, Mark Horrigan, Charles Ilsley, Dirk Böse, Hans Bonnier, Jacques Koolen, Thomas F. Lüscher, Neil J. Weissman, on behalf of the PROGRESS-AMS (Clinical Performance and Angiographic Results of Coronary Stenting with Absorbable Metal Stents) Investigators This study aimed to evaluate the degradation rate and the long-term vascular responses to the absorbable metal stent (AMS) as seen by series of angiographic and intravascular ultrasound (IVUS) studies. We concluded that IVUS imaging supports the safety profile of AMS with degradation at 4 months and durability of the results without any early or late adverse findings. Slower degradation is warranted to provide sufficient radial force to eliminate early recoil and improve long-term patency rates of the AMS.