Integrated morphologic and functional assessment of the aortic root after different tissue valve root replacement procedures
Objectives This study was undertaken to explore aspects of the hemodynamic function of different biologic tissue aortic valve root replacements. We set out to image and display the spatiotemporal distributions of axially directed blood velocity through the aortic root. Methods The flow velocities th...
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| creator | Torii, Ryo, PhD El-Hamamsy, Ismail, MD, PhD Donya, Mohamed, MD Babu-Narayan, Sonya V., MB BS, BSc, PhD, MRCP Ibrahim, Michael, MD Kilner, Philip J., MD, PhD Mohiaddin, Raad H., MD, PhD, FRCR, FRCP, FESC Xu, Xiao Yun, PhD Yacoub, Magdi H., MD, DSc, FRCS, FRCP, FRS |
| description | Objectives This study was undertaken to explore aspects of the hemodynamic function of different biologic tissue aortic valve root replacements. We set out to image and display the spatiotemporal distributions of axially directed blood velocity through the aortic root. Methods The flow velocities through a plane transecting the aortic root were measured by 2-dimensional cine phase-contrast magnetic resonance velocity mapping in 44 subjects: 29 patients who had undergone aortic root replacement approximately 10 years previously (13 autografts, 10 stentless xenografts, and 6 homografts) and 15 healthy control subjects. With cine as well as velocity images, aortic sinus dimensions, effective orifice area, and several velocity parameters were measured. Color-coded plots of velocity relative to the sinus cross sections and velocity-time plots were used to compare spatiotemporal distributions of velocity. Results Peak flow velocity was similar between the autografts (102 ± 28.0 cm/s) and control valves (119 ± 20.0 cm/s) but was higher in xenografts (167 ± 36.0 cm/s) and homografts (206 ± 91.0 cm/s). These measurements showed an inverse relationship with the effective orifice area (7.27 ± 0.20, 4.24 ± 0.81, 3.37 ± 0.32, and 3.28 ± 0.87 cm2 , respectively). Autograft peak flow velocity showed no significant difference from control valve peak flow velocity, despite larger root dimensions ( P |
| doi_str_mv | 10.1016/j.jtcvs.2011.12.034 |
| format | Article |
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We set out to image and display the spatiotemporal distributions of axially directed blood velocity through the aortic root. Methods The flow velocities through a plane transecting the aortic root were measured by 2-dimensional cine phase-contrast magnetic resonance velocity mapping in 44 subjects: 29 patients who had undergone aortic root replacement approximately 10 years previously (13 autografts, 10 stentless xenografts, and 6 homografts) and 15 healthy control subjects. With cine as well as velocity images, aortic sinus dimensions, effective orifice area, and several velocity parameters were measured. Color-coded plots of velocity relative to the sinus cross sections and velocity-time plots were used to compare spatiotemporal distributions of velocity. Results Peak flow velocity was similar between the autografts (102 ± 28.0 cm/s) and control valves (119 ± 20.0 cm/s) but was higher in xenografts (167 ± 36.0 cm/s) and homografts (206 ± 91.0 cm/s). These measurements showed an inverse relationship with the effective orifice area (7.27 ± 0.20, 4.24 ± 0.81, 3.37 ± 0.32, and 3.28 ± 0.87 cm2 , respectively). Autograft peak flow velocity showed no significant difference from control valve peak flow velocity, despite larger root dimensions ( P < .001). The graphic displays provided further spatiotemporal information. Conclusions Peak velocities and spatiotemporal flow patterns depend on the type of valve substitute. In the parameters measured, autograft replacements differed least from normal aortic valves.</description><identifier>ISSN: 0022-5223</identifier><identifier>EISSN: 1097-685X</identifier><identifier>DOI: 10.1016/j.jtcvs.2011.12.034</identifier><identifier>PMID: 22361248</identifier><identifier>CODEN: JTCSAQ</identifier><language>eng</language><publisher>New York, NY: Mosby, Inc</publisher><subject>Adult ; Aged ; Aged, 80 and over ; Analysis of Variance ; Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy ; Aortic Valve - pathology ; Aortic Valve - physiopathology ; Aortic Valve - surgery ; Aortic Valve Insufficiency - pathology ; Aortic Valve Insufficiency - physiopathology ; Aortic Valve Insufficiency - surgery ; Aortic Valve Stenosis - pathology ; Aortic Valve Stenosis - physiopathology ; Aortic Valve Stenosis - surgery ; Biological and medical sciences ; Bioprosthesis ; Blood Flow Velocity ; Cardiology. Vascular system ; Cardiothoracic Surgery ; Female ; Heart Valve Prosthesis ; Heart Valve Prosthesis Implantation - instrumentation ; Heart Valve Prosthesis Implantation - methods ; Hemodynamics ; Humans ; Image Processing, Computer-Assisted ; London ; Magnetic Resonance Imaging, Cine ; Male ; Medical sciences ; Middle Aged ; Pneumology ; Predictive Value of Tests ; Prosthesis Design ; Time Factors ; Transplantation, Autologous ; Transplantation, Homologous ; Treatment Outcome</subject><ispartof>The Journal of thoracic and cardiovascular surgery, 2012-06, Vol.143 (6), p.1422-1428.e2</ispartof><rights>The American Association for Thoracic Surgery</rights><rights>2012 The American Association for Thoracic Surgery</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2012 The American Association for Thoracic Surgery. Published by Mosby, Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c489t-c1759d7f0bf4db2020b3d6c9a7908c44aa37baf0589c1c9f46c70ea7ec7ac3f23</citedby><cites>FETCH-LOGICAL-c489t-c1759d7f0bf4db2020b3d6c9a7908c44aa37baf0589c1c9f46c70ea7ec7ac3f23</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jtcvs.2011.12.034$$EHTML$$P50$$Gelsevier$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25948181$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22361248$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Torii, Ryo, PhD</creatorcontrib><creatorcontrib>El-Hamamsy, Ismail, MD, PhD</creatorcontrib><creatorcontrib>Donya, Mohamed, MD</creatorcontrib><creatorcontrib>Babu-Narayan, Sonya V., MB BS, BSc, PhD, MRCP</creatorcontrib><creatorcontrib>Ibrahim, Michael, MD</creatorcontrib><creatorcontrib>Kilner, Philip J., MD, PhD</creatorcontrib><creatorcontrib>Mohiaddin, Raad H., MD, PhD, FRCR, FRCP, FESC</creatorcontrib><creatorcontrib>Xu, Xiao Yun, PhD</creatorcontrib><creatorcontrib>Yacoub, Magdi H., MD, DSc, FRCS, FRCP, FRS</creatorcontrib><title>Integrated morphologic and functional assessment of the aortic root after different tissue valve root replacement procedures</title><title>The Journal of thoracic and cardiovascular surgery</title><addtitle>J Thorac Cardiovasc Surg</addtitle><description>Objectives This study was undertaken to explore aspects of the hemodynamic function of different biologic tissue aortic valve root replacements. We set out to image and display the spatiotemporal distributions of axially directed blood velocity through the aortic root. Methods The flow velocities through a plane transecting the aortic root were measured by 2-dimensional cine phase-contrast magnetic resonance velocity mapping in 44 subjects: 29 patients who had undergone aortic root replacement approximately 10 years previously (13 autografts, 10 stentless xenografts, and 6 homografts) and 15 healthy control subjects. With cine as well as velocity images, aortic sinus dimensions, effective orifice area, and several velocity parameters were measured. Color-coded plots of velocity relative to the sinus cross sections and velocity-time plots were used to compare spatiotemporal distributions of velocity. Results Peak flow velocity was similar between the autografts (102 ± 28.0 cm/s) and control valves (119 ± 20.0 cm/s) but was higher in xenografts (167 ± 36.0 cm/s) and homografts (206 ± 91.0 cm/s). These measurements showed an inverse relationship with the effective orifice area (7.27 ± 0.20, 4.24 ± 0.81, 3.37 ± 0.32, and 3.28 ± 0.87 cm2 , respectively). Autograft peak flow velocity showed no significant difference from control valve peak flow velocity, despite larger root dimensions ( P < .001). The graphic displays provided further spatiotemporal information. Conclusions Peak velocities and spatiotemporal flow patterns depend on the type of valve substitute. In the parameters measured, autograft replacements differed least from normal aortic valves.</description><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Analysis of Variance</subject><subject>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy</subject><subject>Aortic Valve - pathology</subject><subject>Aortic Valve - physiopathology</subject><subject>Aortic Valve - surgery</subject><subject>Aortic Valve Insufficiency - pathology</subject><subject>Aortic Valve Insufficiency - physiopathology</subject><subject>Aortic Valve Insufficiency - surgery</subject><subject>Aortic Valve Stenosis - pathology</subject><subject>Aortic Valve Stenosis - physiopathology</subject><subject>Aortic Valve Stenosis - surgery</subject><subject>Biological and medical sciences</subject><subject>Bioprosthesis</subject><subject>Blood Flow Velocity</subject><subject>Cardiology. Vascular system</subject><subject>Cardiothoracic Surgery</subject><subject>Female</subject><subject>Heart Valve Prosthesis</subject><subject>Heart Valve Prosthesis Implantation - instrumentation</subject><subject>Heart Valve Prosthesis Implantation - methods</subject><subject>Hemodynamics</subject><subject>Humans</subject><subject>Image Processing, Computer-Assisted</subject><subject>London</subject><subject>Magnetic Resonance Imaging, Cine</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Pneumology</subject><subject>Predictive Value of Tests</subject><subject>Prosthesis Design</subject><subject>Time Factors</subject><subject>Transplantation, Autologous</subject><subject>Transplantation, Homologous</subject><subject>Treatment Outcome</subject><issn>0022-5223</issn><issn>1097-685X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkk2LFDEQhoMo7rj6CwTpi-Cl2yT9mYPCsvixsOBBBW8hXV3ZTdvdGVPpgQV_vOmdUcGLp0B43qrUk2LsueCF4KJ5PRZjhAMVkgtRCFnwsnrAdoKrNm-6-ttDtuNcyryWsjxjT4hGznnLhXrMztJVI2TV7djPqyXiTTARh2z2YX_rJ3_jIDPLkNl1gej8YqbMECHRjEvMvM3iLWbGh5i44H3MjI0YssFZi2FDoiNaMTuY6YBHIuB-MoD3BfbBAw5rQHrKHlkzET47nefs6_t3Xy4_5tefPlxdXlznUHUq5iDaWg2t5b2thl5yyftyaECZVvEOqsqYsu2N5XWnQICyVQMtR9MitAZKK8tz9upYN7X-sSJFPTsCnCazoF9JJ5110larNqHlEYXgiQJavQ9uNuEuQRvX6FHfa9ebdi2kTtpT6sWpwdrPOPzJ_PacgJcnwBCYyQazgKO_XK2qTnQicW-OHCYdB4dBEzhcki8XEKIevPvPQ97-k4fJLS61_I53SKNfQ_rONLGmFNCftw3ZFkSkilUtu_IXT9-6Ig</recordid><startdate>20120601</startdate><enddate>20120601</enddate><creator>Torii, Ryo, PhD</creator><creator>El-Hamamsy, Ismail, MD, PhD</creator><creator>Donya, Mohamed, MD</creator><creator>Babu-Narayan, Sonya V., MB BS, BSc, PhD, MRCP</creator><creator>Ibrahim, Michael, MD</creator><creator>Kilner, Philip J., MD, PhD</creator><creator>Mohiaddin, Raad H., MD, PhD, FRCR, FRCP, FESC</creator><creator>Xu, Xiao Yun, PhD</creator><creator>Yacoub, Magdi H., MD, DSc, FRCS, FRCP, FRS</creator><general>Mosby, Inc</general><general>Elsevier</general><scope>6I.</scope><scope>AAFTH</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>7X8</scope></search><sort><creationdate>20120601</creationdate><title>Integrated morphologic and functional assessment of the aortic root after different tissue valve root replacement procedures</title><author>Torii, Ryo, PhD ; El-Hamamsy, Ismail, MD, PhD ; Donya, Mohamed, MD ; Babu-Narayan, Sonya V., MB BS, BSc, PhD, MRCP ; Ibrahim, Michael, MD ; Kilner, Philip J., MD, PhD ; Mohiaddin, Raad H., MD, PhD, FRCR, FRCP, FESC ; Xu, Xiao Yun, PhD ; Yacoub, Magdi H., MD, DSc, FRCS, FRCP, FRS</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c489t-c1759d7f0bf4db2020b3d6c9a7908c44aa37baf0589c1c9f46c70ea7ec7ac3f23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Analysis of Variance</topic><topic>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy</topic><topic>Aortic Valve - pathology</topic><topic>Aortic Valve - physiopathology</topic><topic>Aortic Valve - surgery</topic><topic>Aortic Valve Insufficiency - pathology</topic><topic>Aortic Valve Insufficiency - physiopathology</topic><topic>Aortic Valve Insufficiency - surgery</topic><topic>Aortic Valve Stenosis - pathology</topic><topic>Aortic Valve Stenosis - physiopathology</topic><topic>Aortic Valve Stenosis - surgery</topic><topic>Biological and medical sciences</topic><topic>Bioprosthesis</topic><topic>Blood Flow Velocity</topic><topic>Cardiology. Vascular system</topic><topic>Cardiothoracic Surgery</topic><topic>Female</topic><topic>Heart Valve Prosthesis</topic><topic>Heart Valve Prosthesis Implantation - instrumentation</topic><topic>Heart Valve Prosthesis Implantation - methods</topic><topic>Hemodynamics</topic><topic>Humans</topic><topic>Image Processing, Computer-Assisted</topic><topic>London</topic><topic>Magnetic Resonance Imaging, Cine</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Pneumology</topic><topic>Predictive Value of Tests</topic><topic>Prosthesis Design</topic><topic>Time Factors</topic><topic>Transplantation, Autologous</topic><topic>Transplantation, Homologous</topic><topic>Treatment Outcome</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Torii, Ryo, PhD</creatorcontrib><creatorcontrib>El-Hamamsy, Ismail, MD, PhD</creatorcontrib><creatorcontrib>Donya, Mohamed, MD</creatorcontrib><creatorcontrib>Babu-Narayan, Sonya V., MB BS, BSc, PhD, MRCP</creatorcontrib><creatorcontrib>Ibrahim, Michael, MD</creatorcontrib><creatorcontrib>Kilner, Philip J., MD, PhD</creatorcontrib><creatorcontrib>Mohiaddin, Raad H., MD, PhD, FRCR, FRCP, FESC</creatorcontrib><creatorcontrib>Xu, Xiao Yun, PhD</creatorcontrib><creatorcontrib>Yacoub, Magdi H., MD, DSc, FRCS, FRCP, FRS</creatorcontrib><collection>ScienceDirect Open Access Titles</collection><collection>Elsevier:ScienceDirect:Open Access</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>The Journal of thoracic and cardiovascular surgery</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Torii, Ryo, PhD</au><au>El-Hamamsy, Ismail, MD, PhD</au><au>Donya, Mohamed, MD</au><au>Babu-Narayan, Sonya V., MB BS, BSc, PhD, MRCP</au><au>Ibrahim, Michael, MD</au><au>Kilner, Philip J., MD, PhD</au><au>Mohiaddin, Raad H., MD, PhD, FRCR, FRCP, FESC</au><au>Xu, Xiao Yun, PhD</au><au>Yacoub, Magdi H., MD, DSc, FRCS, FRCP, FRS</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Integrated morphologic and functional assessment of the aortic root after different tissue valve root replacement procedures</atitle><jtitle>The Journal of thoracic and cardiovascular surgery</jtitle><addtitle>J Thorac Cardiovasc Surg</addtitle><date>2012-06-01</date><risdate>2012</risdate><volume>143</volume><issue>6</issue><spage>1422</spage><epage>1428.e2</epage><pages>1422-1428.e2</pages><issn>0022-5223</issn><eissn>1097-685X</eissn><coden>JTCSAQ</coden><abstract>Objectives This study was undertaken to explore aspects of the hemodynamic function of different biologic tissue aortic valve root replacements. We set out to image and display the spatiotemporal distributions of axially directed blood velocity through the aortic root. Methods The flow velocities through a plane transecting the aortic root were measured by 2-dimensional cine phase-contrast magnetic resonance velocity mapping in 44 subjects: 29 patients who had undergone aortic root replacement approximately 10 years previously (13 autografts, 10 stentless xenografts, and 6 homografts) and 15 healthy control subjects. With cine as well as velocity images, aortic sinus dimensions, effective orifice area, and several velocity parameters were measured. Color-coded plots of velocity relative to the sinus cross sections and velocity-time plots were used to compare spatiotemporal distributions of velocity. Results Peak flow velocity was similar between the autografts (102 ± 28.0 cm/s) and control valves (119 ± 20.0 cm/s) but was higher in xenografts (167 ± 36.0 cm/s) and homografts (206 ± 91.0 cm/s). These measurements showed an inverse relationship with the effective orifice area (7.27 ± 0.20, 4.24 ± 0.81, 3.37 ± 0.32, and 3.28 ± 0.87 cm2 , respectively). Autograft peak flow velocity showed no significant difference from control valve peak flow velocity, despite larger root dimensions ( P < .001). The graphic displays provided further spatiotemporal information. Conclusions Peak velocities and spatiotemporal flow patterns depend on the type of valve substitute. In the parameters measured, autograft replacements differed least from normal aortic valves.</abstract><cop>New York, NY</cop><pub>Mosby, Inc</pub><pmid>22361248</pmid><doi>10.1016/j.jtcvs.2011.12.034</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0022-5223 |
| ispartof | The Journal of thoracic and cardiovascular surgery, 2012-06, Vol.143 (6), p.1422-1428.e2 |
| issn | 0022-5223 1097-685X |
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| subjects | Adult Aged Aged, 80 and over Analysis of Variance Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy Aortic Valve - pathology Aortic Valve - physiopathology Aortic Valve - surgery Aortic Valve Insufficiency - pathology Aortic Valve Insufficiency - physiopathology Aortic Valve Insufficiency - surgery Aortic Valve Stenosis - pathology Aortic Valve Stenosis - physiopathology Aortic Valve Stenosis - surgery Biological and medical sciences Bioprosthesis Blood Flow Velocity Cardiology. Vascular system Cardiothoracic Surgery Female Heart Valve Prosthesis Heart Valve Prosthesis Implantation - instrumentation Heart Valve Prosthesis Implantation - methods Hemodynamics Humans Image Processing, Computer-Assisted London Magnetic Resonance Imaging, Cine Male Medical sciences Middle Aged Pneumology Predictive Value of Tests Prosthesis Design Time Factors Transplantation, Autologous Transplantation, Homologous Treatment Outcome |
| title | Integrated morphologic and functional assessment of the aortic root after different tissue valve root replacement procedures |
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