Dual-Source CT Angiography of Peripheral Arterial Stents : In Vitro Evaluation of 22 Different Stent Types
Joint Authors
Maintz, David
Bunck, Alexander C.
Seifarth, Harald
Heindel, Walter
Köhler, Michael
Burg, Matthias C.
Source
Radiology Research and Practice
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-07-18
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Purpose.
To test different peripheral arterial stents using four image reconstruction approaches with respect to lumen visualization, lumen attenuation and image noise in dual-source multidetector row CT (DSCT) in vitro.
Methods and Materials.
22 stents (nitinol, steel, cobalt-alloy, tantalum, platinum alloy) were examined in a vessel phantom.
All stents were imaged in axial orientation with standard parameters.
Image reconstructions were obtained with four different convolution kernels.
To evaluate visualization characteristics of the stent, the lumen diameter, intraluminal density and noise were measured.
Results.
The mean percentage of the visible stent lumen diameter from the nominal stent diameter was 74.5% ± 5.7 for the medium-sharp kernel, 72.8% ± 6.4 for the medium, 70.8% ± 6.4 for the medium-smooth and 67.6% ± 6.6 for the smooth kernel.
Mean values of lumen attenuation were 299.7HU ± 127 (medium-sharp), 273.9HU ± 68 (medium), 270.7HU ± 53 (medium-smooth) and 265.8HU ± 43.
Mean image noise was: 54.6 ± 6.3, 20.5 ± 1.7, 16.3 ± 1.7, 14.0 ± 2 respectively.
Conclusion.
Visible stent lumen diameter varies depending on stent type and scan parameters.
Lumen diameter visibility increases with the sharpness of the reconstruction kernel.
Smoother kernels provide more realistic density measurements inside the stent lumen and less image noise.
American Psychological Association (APA)
Köhler, Michael& Burg, Matthias C.& Bunck, Alexander C.& Heindel, Walter& Seifarth, Harald& Maintz, David. 2011. Dual-Source CT Angiography of Peripheral Arterial Stents : In Vitro Evaluation of 22 Different Stent Types. Radiology Research and Practice،Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-446622
Modern Language Association (MLA)
Köhler, Michael…[et al.]. Dual-Source CT Angiography of Peripheral Arterial Stents : In Vitro Evaluation of 22 Different Stent Types. Radiology Research and Practice No. 2011 (2011), pp.1-7.
https://search.emarefa.net/detail/BIM-446622
American Medical Association (AMA)
Köhler, Michael& Burg, Matthias C.& Bunck, Alexander C.& Heindel, Walter& Seifarth, Harald& Maintz, David. Dual-Source CT Angiography of Peripheral Arterial Stents : In Vitro Evaluation of 22 Different Stent Types. Radiology Research and Practice. 2011. Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-446622
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-446622