A precious metal alloy for construction of MR imaging-compatible balloon-expandable vascular stents.
The authors developed ABI alloy, which mechanically resembles stainless steel 316. The main elements of ABI alloy are palladium and silver. Magnetic resonance (MR) images and radiographs of ABI alloy and stainless steel 316 stent models and of nitinol, tantalum, and Elgiloy stents were compared. ABI alloy showed the least MR imaging artifacts and was more radiopaque than stainless steel 316. ABI alloy has the potential to replace stainless steel 316 for construction of balloon-expandable MR imaging-compatible stents.
Department of Radiology, Erasmus University Medical Center Rotterdam, "Dijkzigt," Dr Molewaterplein 40, 3015 GD Rotterdam, the Netherlands. lcvandijk@rond.azr.nl
L C
LC
van Dijk
J
J
van Holten
B P
BP
van Dijk
N A
NA
Matheijssen
P M
PM
Pattynama
D000497:Alloys; D016477:Artifacts; D004867:Equipment Design; D006801:Humans; D008279:Magnetic Resonance Imaging; D010165:Palladium; D019047:Phantoms, Imaging; D012834:Silver; D015607:Stents
D000497:Alloys; D012834:Silver; D010165:Palladium