|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Magnesium Technology 2021
||Absorbable wire radiopacity: influence of composition and size on x-ray visibility
||Adam Griebel, Aubrey L Ehle, Jeremy E. Schaffer
|On-Site Speaker (Planned)
Imaging systems employing X-rays (such a 2D projectional radiography, computed tomography, and fluoroscopy) are widely used in medicine to aid in surgical planning, intervention, and follow-up. Visualization of medical devices using these techniques relies on differences in x-ray absorption between the medical device and the surrounding tissue. The amount of absorption of a given device is largely a function of its cross-sectional dimensions and density. Consequently, imaging of relatively small devices, like stents, made of a low-density material, like magnesium, can be very challenging. The aim of this study is to determine the influence of magnesium alloy composition on radiopacity, and at what diameters wires are no longer visible. This is accomplished by producing wires from four different magnesium alloys, in sizes ranging from 0.2 to 1.0 mm diameter, and imaging on a clinical x-ray system.
||Magnesium, Biomaterials, Characterization