Update on multidetector coronary CT angiography of coronary stents: in vitro evaluation of 29 different stent types with dual-source CT
The aim of this study was to test a large sample of the latest coronary artery 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 and to provide a CT catalogue of currently used...
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| Veröffentlicht in: | European radiology 2009, Vol.19 (1), p.42-49 |
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| creator | Maintz, David Burg, Matthias C. Seifarth, Harald Bunck, Alexander C. Özgün, Murat Fischbach, Roman Jürgens, Kai Uwe Heindel, Walter |
| description | The aim of this study was to test a large sample of the latest coronary artery 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 and to provide a CT catalogue of currently used coronary artery stents. Twenty-nine different coronary artery stents (19 steel, 6 cobalt-chromium, 2 tantalum, 1 iron, 1 magnesium) were examined in a coronary artery phantom (vessel diameter 3 mm, intravascular attenuation 250 HU, extravascular density −70 HU). Stents were imaged in axial orientation with standard parameters: 32 × 0.6 collimation, pitch 0.24, 400 mAs, 120 kV, rotation time 0.33 s. Image reconstructions were obtained with four different convolution kernels (soft, medium-soft, standard high-resolution, stent-dedicated). To evaluate visualization characteristics of the stent, the lumen diameter, intraluminal density, and noise were measured. The stent-dedicated kernel offered best average lumen visualization (54 ± 8.3%) and most realistic lumen attenuation (222 ± 44 HU) at the expense of increased noise (23.9 ± 1.9 HU) compared with standard CTA protocols (
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| doi_str_mv | 10.1007/s00330-008-1132-5 |
| format | Article |
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p
< 0.001 for all). The magnesium stent showed the least artifacts with a lumen visibility of 90%. The majority of stents (79%) exhibited a lumen visibility of 50–59%. Less than half of the stent lumen was visible in only six stents. Stent lumen visibility largely varies depending on the stent type. Magnesium is by far more favorable a stent material with regard to CT imaging when compared with the more common materials steel, cobalt-chromium, or tantalum. The magnesium stent exhibits a lumen visibility of 90%, whereas the majority of the other stents exhibit a lumen visibility of 50–59%.</description><identifier>ISSN: 0938-7994</identifier><identifier>EISSN: 1432-1084</identifier><identifier>DOI: 10.1007/s00330-008-1132-5</identifier><identifier>PMID: 18682956</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Blood Vessel Prosthesis ; Coronary Angiography - methods ; Coronary Vessels - surgery ; Diagnostic Radiology ; Equipment Design ; Equipment Failure Analysis - methods ; Humans ; Imaging ; In Vitro Techniques ; Internal Medicine ; Interventional Radiology ; Medical imaging ; Medicine ; Medicine & Public Health ; Neuroradiology ; Noise ; Radiology ; Reproducibility of Results ; Sensitivity and Specificity ; Stents ; Technical Development ; Tomography, X-Ray Computed - instrumentation ; Tomography, X-Ray Computed - methods ; Ultrasound ; Veins & arteries</subject><ispartof>European radiology, 2009, Vol.19 (1), p.42-49</ispartof><rights>European Society of Radiology 2008</rights><rights>European Society of Radiology 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c338t-86d84b87ff2c196d5f21ed7d277533cbc93cfb1d92d8ff1ca6d7f36b0c578fae3</citedby><cites>FETCH-LOGICAL-c338t-86d84b87ff2c196d5f21ed7d277533cbc93cfb1d92d8ff1ca6d7f36b0c578fae3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00330-008-1132-5$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00330-008-1132-5$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/18682956$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Maintz, David</creatorcontrib><creatorcontrib>Burg, Matthias C.</creatorcontrib><creatorcontrib>Seifarth, Harald</creatorcontrib><creatorcontrib>Bunck, Alexander C.</creatorcontrib><creatorcontrib>Özgün, Murat</creatorcontrib><creatorcontrib>Fischbach, Roman</creatorcontrib><creatorcontrib>Jürgens, Kai Uwe</creatorcontrib><creatorcontrib>Heindel, Walter</creatorcontrib><title>Update on multidetector coronary CT angiography of coronary stents: in vitro evaluation of 29 different stent types with dual-source CT</title><title>European radiology</title><addtitle>Eur Radiol</addtitle><addtitle>Eur Radiol</addtitle><description>The aim of this study was to test a large sample of the latest coronary artery 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 and to provide a CT catalogue of currently used coronary artery stents. Twenty-nine different coronary artery stents (19 steel, 6 cobalt-chromium, 2 tantalum, 1 iron, 1 magnesium) were examined in a coronary artery phantom (vessel diameter 3 mm, intravascular attenuation 250 HU, extravascular density −70 HU). Stents were imaged in axial orientation with standard parameters: 32 × 0.6 collimation, pitch 0.24, 400 mAs, 120 kV, rotation time 0.33 s. Image reconstructions were obtained with four different convolution kernels (soft, medium-soft, standard high-resolution, stent-dedicated). To evaluate visualization characteristics of the stent, the lumen diameter, intraluminal density, and noise were measured. The stent-dedicated kernel offered best average lumen visualization (54 ± 8.3%) and most realistic lumen attenuation (222 ± 44 HU) at the expense of increased noise (23.9 ± 1.9 HU) compared with standard CTA protocols (
p
< 0.001 for all). The magnesium stent showed the least artifacts with a lumen visibility of 90%. The majority of stents (79%) exhibited a lumen visibility of 50–59%. Less than half of the stent lumen was visible in only six stents. Stent lumen visibility largely varies depending on the stent type. Magnesium is by far more favorable a stent material with regard to CT imaging when compared with the more common materials steel, cobalt-chromium, or tantalum. The magnesium stent exhibits a lumen visibility of 90%, whereas the majority of the other stents exhibit a lumen visibility of 50–59%.</description><subject>Blood Vessel Prosthesis</subject><subject>Coronary Angiography - methods</subject><subject>Coronary Vessels - surgery</subject><subject>Diagnostic Radiology</subject><subject>Equipment Design</subject><subject>Equipment Failure Analysis - methods</subject><subject>Humans</subject><subject>Imaging</subject><subject>In Vitro Techniques</subject><subject>Internal Medicine</subject><subject>Interventional Radiology</subject><subject>Medical imaging</subject><subject>Medicine</subject><subject>Medicine & Public Health</subject><subject>Neuroradiology</subject><subject>Noise</subject><subject>Radiology</subject><subject>Reproducibility of Results</subject><subject>Sensitivity and Specificity</subject><subject>Stents</subject><subject>Technical Development</subject><subject>Tomography, X-Ray Computed - 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Walter</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Update on multidetector coronary CT angiography of coronary stents: in vitro evaluation of 29 different stent types with dual-source CT</atitle><jtitle>European radiology</jtitle><stitle>Eur Radiol</stitle><addtitle>Eur Radiol</addtitle><date>2009</date><risdate>2009</risdate><volume>19</volume><issue>1</issue><spage>42</spage><epage>49</epage><pages>42-49</pages><issn>0938-7994</issn><eissn>1432-1084</eissn><abstract>The aim of this study was to test a large sample of the latest coronary artery 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 and to provide a CT catalogue of currently used coronary artery stents. Twenty-nine different coronary artery stents (19 steel, 6 cobalt-chromium, 2 tantalum, 1 iron, 1 magnesium) were examined in a coronary artery phantom (vessel diameter 3 mm, intravascular attenuation 250 HU, extravascular density −70 HU). Stents were imaged in axial orientation with standard parameters: 32 × 0.6 collimation, pitch 0.24, 400 mAs, 120 kV, rotation time 0.33 s. Image reconstructions were obtained with four different convolution kernels (soft, medium-soft, standard high-resolution, stent-dedicated). To evaluate visualization characteristics of the stent, the lumen diameter, intraluminal density, and noise were measured. The stent-dedicated kernel offered best average lumen visualization (54 ± 8.3%) and most realistic lumen attenuation (222 ± 44 HU) at the expense of increased noise (23.9 ± 1.9 HU) compared with standard CTA protocols (
p
< 0.001 for all). The magnesium stent showed the least artifacts with a lumen visibility of 90%. The majority of stents (79%) exhibited a lumen visibility of 50–59%. Less than half of the stent lumen was visible in only six stents. Stent lumen visibility largely varies depending on the stent type. Magnesium is by far more favorable a stent material with regard to CT imaging when compared with the more common materials steel, cobalt-chromium, or tantalum. The magnesium stent exhibits a lumen visibility of 90%, whereas the majority of the other stents exhibit a lumen visibility of 50–59%.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>18682956</pmid><doi>10.1007/s00330-008-1132-5</doi><tpages>8</tpages></addata></record> |
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| subjects | Blood Vessel Prosthesis Coronary Angiography - methods Coronary Vessels - surgery Diagnostic Radiology Equipment Design Equipment Failure Analysis - methods Humans Imaging In Vitro Techniques Internal Medicine Interventional Radiology Medical imaging Medicine Medicine & Public Health Neuroradiology Noise Radiology Reproducibility of Results Sensitivity and Specificity Stents Technical Development Tomography, X-Ray Computed - instrumentation Tomography, X-Ray Computed - methods Ultrasound Veins & arteries |
| title | Update on multidetector coronary CT angiography of coronary stents: in vitro evaluation of 29 different stent types with dual-source CT |
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