High-resolution 3D X-ray imaging of intracranial nitinol stents
Introduction To assess an optimized 3D imaging protocol for intracranial nitinol stents in 3D C-arm flat detector imaging. For this purpose, an image quality simulation and an in vitro study was carried out. Methods Nitinol stents of various brands were placed inside an anthropomorphic head phantom,...
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| Veröffentlicht in: | Neuroradiology 2012-02, Vol.54 (2), p.155-162 |
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| creator | Snoeren, Rudolph M. Söderman, Michael Kroon, Johannes N. Roijers, Ruben B. de With, Peter H. N. Babic, Drazenko |
| description | Introduction
To assess an optimized 3D imaging protocol for intracranial nitinol stents in 3D C-arm flat detector imaging. For this purpose, an image quality simulation and an in vitro study was carried out.
Methods
Nitinol stents of various brands were placed inside an anthropomorphic head phantom, using iodine contrast. Experiments with objects were preceded by image quality and dose simulations. We varied X-ray imaging parameters in a commercially interventional X-ray system to set 3D image quality in the contrast–noise–sharpness space. Beam quality was varied to evaluate contrast of the stents while keeping absorbed dose below recommended values. Two detector formats were used, paired with an appropriate pixel size and X-ray focus size. Zoomed reconstructions were carried out and snapshot images acquired. High contrast spatial resolution was assessed with a CT phantom.
Results
We found an optimal protocol for imaging intracranial nitinol stents. Contrast resolution was optimized for nickel–titanium-containing stents. A high spatial resolution larger than 2.1 lp/mm allows struts to be visualized. We obtained images of stents of various brands and a representative set of images is shown. Independent of the make, struts can be imaged with virtually continuous strokes. Measured absorbed doses are shown to be lower than 50 mGy Computed Tomography Dose Index (CTDI).
Conclusion
By balancing the modulation transfer of the imaging components and tuning the high-contrast imaging capabilities, we have shown that thin nitinol stent wires can be reconstructed with high contrast-to-noise ratio and good detail, while keeping radiation doses within recommended values. Experimental results compare well with imaging simulations. |
| doi_str_mv | 10.1007/s00234-011-0839-1 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_swepu</sourceid><recordid>TN_cdi_swepub_primary_oai_swepub_ki_se_546050</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>917162845</sourcerecordid><originalsourceid>FETCH-LOGICAL-c634t-260caac86c20975d65b0d1073c46e96c22d9385502ff77fcc563a72bfd13f96d3</originalsourceid><addsrcrecordid>eNqFkU1rFTEUhoMo9nr1B7iRQRBX0XOSSTKzUaRqKxTcKLgLuZnMNHVuUpMZpf--Ge7YWkFcJZz3OZ8vIU8RXiGAep0BGK8pIFJoeEvxHtlgzRnFlsF9silyQ3lbwxF5lPMFAHDF1UNyxJBzlIAb8vbUD-c0uRzHefIxVPx99Y0mc1X5vRl8GKrYVz5MydhkgjdjFfzkQxyrPLkw5cfkQW_G7J6s75Z8_fjhy_EpPft88un43Rm1ktcTZRKsMbaRlkGrRCfFDjoExW0tXVuirGt5IwSwvleqt1ZIbhTb9R3yvpUd3xJ6qJt_uct5py9TmS9d6Wi8XkPfy89pUUsQUPg3B74oe9dZt6ww3km7qwR_rof4U3MmsS5H3JKXa4EUf8wuT3rvs3XjaIKLc9Ytky00rIb_k6hQsqYWhXz-F3kR5xTK3QokC4W4QHiAbIo5J9ffDI2gF9v1wXZdbNeL7RpLzrM_t73J-O1zAV6sgMnWjH3x0vp8ywmhJGfL1mw9c5HC4NLthP_ufg2OtcQh</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>916716115</pqid></control><display><type>article</type><title>High-resolution 3D X-ray imaging of intracranial nitinol stents</title><source>MEDLINE</source><source>SWEPUB Freely available online</source><source>SpringerLink Journals - AutoHoldings</source><creator>Snoeren, Rudolph M. ; Söderman, Michael ; Kroon, Johannes N. ; Roijers, Ruben B. ; de With, Peter H. N. ; Babic, Drazenko</creator><creatorcontrib>Snoeren, Rudolph M. ; Söderman, Michael ; Kroon, Johannes N. ; Roijers, Ruben B. ; de With, Peter H. N. ; Babic, Drazenko</creatorcontrib><description>Introduction
To assess an optimized 3D imaging protocol for intracranial nitinol stents in 3D C-arm flat detector imaging. For this purpose, an image quality simulation and an in vitro study was carried out.
Methods
Nitinol stents of various brands were placed inside an anthropomorphic head phantom, using iodine contrast. Experiments with objects were preceded by image quality and dose simulations. We varied X-ray imaging parameters in a commercially interventional X-ray system to set 3D image quality in the contrast–noise–sharpness space. Beam quality was varied to evaluate contrast of the stents while keeping absorbed dose below recommended values. Two detector formats were used, paired with an appropriate pixel size and X-ray focus size. Zoomed reconstructions were carried out and snapshot images acquired. High contrast spatial resolution was assessed with a CT phantom.
Results
We found an optimal protocol for imaging intracranial nitinol stents. Contrast resolution was optimized for nickel–titanium-containing stents. A high spatial resolution larger than 2.1 lp/mm allows struts to be visualized. We obtained images of stents of various brands and a representative set of images is shown. Independent of the make, struts can be imaged with virtually continuous strokes. Measured absorbed doses are shown to be lower than 50 mGy Computed Tomography Dose Index (CTDI).
Conclusion
By balancing the modulation transfer of the imaging components and tuning the high-contrast imaging capabilities, we have shown that thin nitinol stent wires can be reconstructed with high contrast-to-noise ratio and good detail, while keeping radiation doses within recommended values. Experimental results compare well with imaging simulations.</description><identifier>ISSN: 0028-3940</identifier><identifier>EISSN: 1432-1920</identifier><identifier>DOI: 10.1007/s00234-011-0839-1</identifier><identifier>PMID: 21331601</identifier><identifier>CODEN: NRDYAB</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>3-D graphics ; Alloys ; Biological and medical sciences ; Computed tomography ; Electrocardiography. Vectocardiography ; Electrodiagnosis. Electric activity recording ; Head ; Humans ; Imaging ; Imaging, Three-Dimensional - methods ; Implants ; Interventional Neuroradiology ; Intracranial Aneurysm - diagnostic imaging ; Investigative techniques, diagnostic techniques (general aspects) ; Iodine ; Ionizing radiation ; Medical sciences ; Medicine ; Medicine & Public Health ; Nervous system ; Neuroimaging ; Neurology ; Neuroradiology ; Neurosciences ; Neurosurgery ; Phantoms, Imaging ; Radiation Dosage ; Radiodiagnosis. Nmr imagery. Nmr spectrometry ; Radiographic Image Interpretation, Computer-Assisted ; Radiology ; spatial discrimination ; Stents ; Stroke ; Tomography, X-Ray Computed ; X-Rays</subject><ispartof>Neuroradiology, 2012-02, Vol.54 (2), p.155-162</ispartof><rights>The Author(s) 2011</rights><rights>2015 INIST-CNRS</rights><rights>Springer-Verlag 2012</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c634t-260caac86c20975d65b0d1073c46e96c22d9385502ff77fcc563a72bfd13f96d3</citedby><cites>FETCH-LOGICAL-c634t-260caac86c20975d65b0d1073c46e96c22d9385502ff77fcc563a72bfd13f96d3</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/s00234-011-0839-1$$EPDF$$P50$$Gspringer$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00234-011-0839-1$$EHTML$$P50$$Gspringer$$Hfree_for_read</linktohtml><link.rule.ids>230,314,550,776,780,881,27901,27902,41464,42533,51294</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25576324$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/21331601$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttp://kipublications.ki.se/Default.aspx?queryparsed=id:123951377$$DView record from Swedish Publication Index$$Hfree_for_read</backlink></links><search><creatorcontrib>Snoeren, Rudolph M.</creatorcontrib><creatorcontrib>Söderman, Michael</creatorcontrib><creatorcontrib>Kroon, Johannes N.</creatorcontrib><creatorcontrib>Roijers, Ruben B.</creatorcontrib><creatorcontrib>de With, Peter H. N.</creatorcontrib><creatorcontrib>Babic, Drazenko</creatorcontrib><title>High-resolution 3D X-ray imaging of intracranial nitinol stents</title><title>Neuroradiology</title><addtitle>Neuroradiology</addtitle><addtitle>Neuroradiology</addtitle><description>Introduction
To assess an optimized 3D imaging protocol for intracranial nitinol stents in 3D C-arm flat detector imaging. For this purpose, an image quality simulation and an in vitro study was carried out.
Methods
Nitinol stents of various brands were placed inside an anthropomorphic head phantom, using iodine contrast. Experiments with objects were preceded by image quality and dose simulations. We varied X-ray imaging parameters in a commercially interventional X-ray system to set 3D image quality in the contrast–noise–sharpness space. Beam quality was varied to evaluate contrast of the stents while keeping absorbed dose below recommended values. Two detector formats were used, paired with an appropriate pixel size and X-ray focus size. Zoomed reconstructions were carried out and snapshot images acquired. High contrast spatial resolution was assessed with a CT phantom.
Results
We found an optimal protocol for imaging intracranial nitinol stents. Contrast resolution was optimized for nickel–titanium-containing stents. A high spatial resolution larger than 2.1 lp/mm allows struts to be visualized. We obtained images of stents of various brands and a representative set of images is shown. Independent of the make, struts can be imaged with virtually continuous strokes. Measured absorbed doses are shown to be lower than 50 mGy Computed Tomography Dose Index (CTDI).
Conclusion
By balancing the modulation transfer of the imaging components and tuning the high-contrast imaging capabilities, we have shown that thin nitinol stent wires can be reconstructed with high contrast-to-noise ratio and good detail, while keeping radiation doses within recommended values. Experimental results compare well with imaging simulations.</description><subject>3-D graphics</subject><subject>Alloys</subject><subject>Biological and medical sciences</subject><subject>Computed tomography</subject><subject>Electrocardiography. Vectocardiography</subject><subject>Electrodiagnosis. Electric activity recording</subject><subject>Head</subject><subject>Humans</subject><subject>Imaging</subject><subject>Imaging, Three-Dimensional - methods</subject><subject>Implants</subject><subject>Interventional Neuroradiology</subject><subject>Intracranial Aneurysm - diagnostic imaging</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Iodine</subject><subject>Ionizing radiation</subject><subject>Medical sciences</subject><subject>Medicine</subject><subject>Medicine & Public Health</subject><subject>Nervous system</subject><subject>Neuroimaging</subject><subject>Neurology</subject><subject>Neuroradiology</subject><subject>Neurosciences</subject><subject>Neurosurgery</subject><subject>Phantoms, Imaging</subject><subject>Radiation Dosage</subject><subject>Radiodiagnosis. Nmr imagery. Nmr spectrometry</subject><subject>Radiographic Image Interpretation, Computer-Assisted</subject><subject>Radiology</subject><subject>spatial discrimination</subject><subject>Stents</subject><subject>Stroke</subject><subject>Tomography, X-Ray Computed</subject><subject>X-Rays</subject><issn>0028-3940</issn><issn>1432-1920</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>EIF</sourceid><sourceid>8G5</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><sourceid>D8T</sourceid><recordid>eNqFkU1rFTEUhoMo9nr1B7iRQRBX0XOSSTKzUaRqKxTcKLgLuZnMNHVuUpMZpf--Ge7YWkFcJZz3OZ8vIU8RXiGAep0BGK8pIFJoeEvxHtlgzRnFlsF9silyQ3lbwxF5lPMFAHDF1UNyxJBzlIAb8vbUD-c0uRzHefIxVPx99Y0mc1X5vRl8GKrYVz5MydhkgjdjFfzkQxyrPLkw5cfkQW_G7J6s75Z8_fjhy_EpPft88un43Rm1ktcTZRKsMbaRlkGrRCfFDjoExW0tXVuirGt5IwSwvleqt1ZIbhTb9R3yvpUd3xJ6qJt_uct5py9TmS9d6Wi8XkPfy89pUUsQUPg3B74oe9dZt6ww3km7qwR_rof4U3MmsS5H3JKXa4EUf8wuT3rvs3XjaIKLc9Ytky00rIb_k6hQsqYWhXz-F3kR5xTK3QokC4W4QHiAbIo5J9ffDI2gF9v1wXZdbNeL7RpLzrM_t73J-O1zAV6sgMnWjH3x0vp8ywmhJGfL1mw9c5HC4NLthP_ufg2OtcQh</recordid><startdate>20120201</startdate><enddate>20120201</enddate><creator>Snoeren, Rudolph M.</creator><creator>Söderman, Michael</creator><creator>Kroon, Johannes N.</creator><creator>Roijers, Ruben B.</creator><creator>de With, Peter H. N.</creator><creator>Babic, Drazenko</creator><general>Springer-Verlag</general><general>Springer</general><general>Springer Nature B.V</general><scope>C6C</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QO</scope><scope>7RV</scope><scope>7TK</scope><scope>7U7</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>8G5</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>GUQSH</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2O</scope><scope>M7P</scope><scope>MBDVC</scope><scope>NAPCQ</scope><scope>P5Z</scope><scope>P62</scope><scope>P64</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope><scope>ADTPV</scope><scope>AOWAS</scope><scope>D8T</scope><scope>ZZAVC</scope></search><sort><creationdate>20120201</creationdate><title>High-resolution 3D X-ray imaging of intracranial nitinol stents</title><author>Snoeren, Rudolph M. ; Söderman, Michael ; Kroon, Johannes N. ; Roijers, Ruben B. ; de With, Peter H. N. ; Babic, Drazenko</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c634t-260caac86c20975d65b0d1073c46e96c22d9385502ff77fcc563a72bfd13f96d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>3-D graphics</topic><topic>Alloys</topic><topic>Biological and medical sciences</topic><topic>Computed tomography</topic><topic>Electrocardiography. Vectocardiography</topic><topic>Electrodiagnosis. Electric activity recording</topic><topic>Head</topic><topic>Humans</topic><topic>Imaging</topic><topic>Imaging, Three-Dimensional - methods</topic><topic>Implants</topic><topic>Interventional Neuroradiology</topic><topic>Intracranial Aneurysm - diagnostic imaging</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Iodine</topic><topic>Ionizing radiation</topic><topic>Medical sciences</topic><topic>Medicine</topic><topic>Medicine & Public Health</topic><topic>Nervous system</topic><topic>Neuroimaging</topic><topic>Neurology</topic><topic>Neuroradiology</topic><topic>Neurosciences</topic><topic>Neurosurgery</topic><topic>Phantoms, Imaging</topic><topic>Radiation Dosage</topic><topic>Radiodiagnosis. Nmr imagery. Nmr spectrometry</topic><topic>Radiographic Image Interpretation, Computer-Assisted</topic><topic>Radiology</topic><topic>spatial discrimination</topic><topic>Stents</topic><topic>Stroke</topic><topic>Tomography, X-Ray Computed</topic><topic>X-Rays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Snoeren, Rudolph M.</creatorcontrib><creatorcontrib>Söderman, Michael</creatorcontrib><creatorcontrib>Kroon, Johannes N.</creatorcontrib><creatorcontrib>Roijers, Ruben B.</creatorcontrib><creatorcontrib>de With, Peter H. 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N.</au><au>Babic, Drazenko</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High-resolution 3D X-ray imaging of intracranial nitinol stents</atitle><jtitle>Neuroradiology</jtitle><stitle>Neuroradiology</stitle><addtitle>Neuroradiology</addtitle><date>2012-02-01</date><risdate>2012</risdate><volume>54</volume><issue>2</issue><spage>155</spage><epage>162</epage><pages>155-162</pages><issn>0028-3940</issn><eissn>1432-1920</eissn><coden>NRDYAB</coden><abstract>Introduction
To assess an optimized 3D imaging protocol for intracranial nitinol stents in 3D C-arm flat detector imaging. For this purpose, an image quality simulation and an in vitro study was carried out.
Methods
Nitinol stents of various brands were placed inside an anthropomorphic head phantom, using iodine contrast. Experiments with objects were preceded by image quality and dose simulations. We varied X-ray imaging parameters in a commercially interventional X-ray system to set 3D image quality in the contrast–noise–sharpness space. Beam quality was varied to evaluate contrast of the stents while keeping absorbed dose below recommended values. Two detector formats were used, paired with an appropriate pixel size and X-ray focus size. Zoomed reconstructions were carried out and snapshot images acquired. High contrast spatial resolution was assessed with a CT phantom.
Results
We found an optimal protocol for imaging intracranial nitinol stents. Contrast resolution was optimized for nickel–titanium-containing stents. A high spatial resolution larger than 2.1 lp/mm allows struts to be visualized. We obtained images of stents of various brands and a representative set of images is shown. Independent of the make, struts can be imaged with virtually continuous strokes. Measured absorbed doses are shown to be lower than 50 mGy Computed Tomography Dose Index (CTDI).
Conclusion
By balancing the modulation transfer of the imaging components and tuning the high-contrast imaging capabilities, we have shown that thin nitinol stent wires can be reconstructed with high contrast-to-noise ratio and good detail, while keeping radiation doses within recommended values. Experimental results compare well with imaging simulations.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>21331601</pmid><doi>10.1007/s00234-011-0839-1</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | 3-D graphics Alloys Biological and medical sciences Computed tomography Electrocardiography. Vectocardiography Electrodiagnosis. Electric activity recording Head Humans Imaging Imaging, Three-Dimensional - methods Implants Interventional Neuroradiology Intracranial Aneurysm - diagnostic imaging Investigative techniques, diagnostic techniques (general aspects) Iodine Ionizing radiation Medical sciences Medicine Medicine & Public Health Nervous system Neuroimaging Neurology Neuroradiology Neurosciences Neurosurgery Phantoms, Imaging Radiation Dosage Radiodiagnosis. Nmr imagery. Nmr spectrometry Radiographic Image Interpretation, Computer-Assisted Radiology spatial discrimination Stents Stroke Tomography, X-Ray Computed X-Rays |
| title | High-resolution 3D X-ray imaging of intracranial nitinol stents |
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