Quantification and Perceptibility of In-Stent Stenosis with Six Peripheral Arterial Stent Types in Vitro: Comparison of 16-slice CT, 64-slice CT and MR
M Schernthaner-Blum, G Edelhauser, R Schernthaner, F Wolf, J Lammer, M Funovics · RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren · 2008 · Heft 04
Bibliografische Angaben
Zusammenfassung
Ziele: To evaluate and compare the perceptibility of 75% and 95% in-stent stenoses with CT angiography (CTA) and MR angiography (MRA) using six stent types in a phantom model. Methode: Six different stent types were placed into tubes filled with contrast agent (ioversol or gadoteric acid) and nylon-cylinders (8mmØ), bored in the central axis (2mm and 4mm) to mimic 75% and 95% stenoses, were inserted into the stents inside the tubes. CTA (16-slice and 64-slice scanners, three different kernels, 120kV, 140kV) and MRA (1.5T) were performed. On 2mm coronal sections, signal-intensities in the stenosed stents were com…
