Detection of the Cardiac Activation Sequence by Novel Echocardiographic Tissue Tracking Method
Abstract Asynchronous cardiac activation leads to decreased pumping efficiency. Quantifying the activation sequence may optimize both the selection of patients for cardiac resynchronization therapy (CRT) and its efficacy. The feasibility of assessing the directivity and the degree of synchronous act...
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| Veröffentlicht in: | Ultrasound in medicine & biology 2007-06, Vol.33 (6), p.880-893 |
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| creator | Rappaport, Dan Konyukhov, Eugene Shulman, Lilia Friedman, Zvi Lysyansky, Peter Landesberg, Amir Adam, Dan |
| description | Abstract Asynchronous cardiac activation leads to decreased pumping efficiency. Quantifying the activation sequence may optimize both the selection of patients for cardiac resynchronization therapy (CRT) and its efficacy. The feasibility of assessing the directivity and the degree of synchronous activation with ultrasound was examined. A tissue tracking method (CEB, GE-Ultrasound, AFI, GE Healthcare Inc., Wauwatosa, WI, USA) provided the regional strain profiles. The first maxima in systole of the regional circumferential strains were considered as the activation times. An integrative vector (SDV) describes the activation synchrony and directivity. In six open-chest sheep, activation maps and SDV were calculated in short-axis planes of the left ventricle for normal activation and induced pacings from the anterior and lateral free walls. Both magnitude and angle of the SDV were statistically different ( p < 0.05) for the different pacings. Localization of the pacing site was 3° ± 18° from true position. Conclusions were that motion analysis in echocardiograms provides insightful information regarding the activation process and may enhance procedures such as CRT. (E-mail: Dan@bm.technion.ac.il ) |
| doi_str_mv | 10.1016/j.ultrasmedbio.2006.12.005 |
| format | Article |
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Quantifying the activation sequence may optimize both the selection of patients for cardiac resynchronization therapy (CRT) and its efficacy. The feasibility of assessing the directivity and the degree of synchronous activation with ultrasound was examined. A tissue tracking method (CEB, GE-Ultrasound, AFI, GE Healthcare Inc., Wauwatosa, WI, USA) provided the regional strain profiles. The first maxima in systole of the regional circumferential strains were considered as the activation times. An integrative vector (SDV) describes the activation synchrony and directivity. In six open-chest sheep, activation maps and SDV were calculated in short-axis planes of the left ventricle for normal activation and induced pacings from the anterior and lateral free walls. Both magnitude and angle of the SDV were statistically different ( p < 0.05) for the different pacings. Localization of the pacing site was 3° ± 18° from true position. Conclusions were that motion analysis in echocardiograms provides insightful information regarding the activation process and may enhance procedures such as CRT. (E-mail: Dan@bm.technion.ac.il )</description><identifier>ISSN: 0301-5629</identifier><identifier>EISSN: 1879-291X</identifier><identifier>DOI: 10.1016/j.ultrasmedbio.2006.12.005</identifier><identifier>PMID: 17445969</identifier><language>eng</language><publisher>England: Elsevier Inc</publisher><subject>Activation sequence ; Animals ; Cardiac Pacing, Artificial - methods ; Cardiac resynchronization therapy ; Echocardiography - methods ; Electrocardiography ; Heart - physiology ; Heart Conduction System - diagnostic imaging ; Heart Conduction System - physiology ; Heart Ventricles - diagnostic imaging ; Models, Animal ; Radiology ; Sheep ; Strain imaging ; Stress, Mechanical ; Time Factors ; Tissue tracking ; Ventricular Function - physiology</subject><ispartof>Ultrasound in medicine & biology, 2007-06, Vol.33 (6), p.880-893</ispartof><rights>World Federation for Ultrasound in Medicine & Biology</rights><rights>2007 World Federation for Ultrasound in Medicine & Biology</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c433t-947f0f6b394b0e2c80658395a3967127af7309e104d3e7818c80fc7d4b2fdd533</citedby><cites>FETCH-LOGICAL-c433t-947f0f6b394b0e2c80658395a3967127af7309e104d3e7818c80fc7d4b2fdd533</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0301562907000129$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17445969$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Rappaport, Dan</creatorcontrib><creatorcontrib>Konyukhov, Eugene</creatorcontrib><creatorcontrib>Shulman, Lilia</creatorcontrib><creatorcontrib>Friedman, Zvi</creatorcontrib><creatorcontrib>Lysyansky, Peter</creatorcontrib><creatorcontrib>Landesberg, Amir</creatorcontrib><creatorcontrib>Adam, Dan</creatorcontrib><title>Detection of the Cardiac Activation Sequence by Novel Echocardiographic Tissue Tracking Method</title><title>Ultrasound in medicine & biology</title><addtitle>Ultrasound Med Biol</addtitle><description>Abstract Asynchronous cardiac activation leads to decreased pumping efficiency. Quantifying the activation sequence may optimize both the selection of patients for cardiac resynchronization therapy (CRT) and its efficacy. The feasibility of assessing the directivity and the degree of synchronous activation with ultrasound was examined. A tissue tracking method (CEB, GE-Ultrasound, AFI, GE Healthcare Inc., Wauwatosa, WI, USA) provided the regional strain profiles. The first maxima in systole of the regional circumferential strains were considered as the activation times. An integrative vector (SDV) describes the activation synchrony and directivity. In six open-chest sheep, activation maps and SDV were calculated in short-axis planes of the left ventricle for normal activation and induced pacings from the anterior and lateral free walls. Both magnitude and angle of the SDV were statistically different ( p < 0.05) for the different pacings. Localization of the pacing site was 3° ± 18° from true position. Conclusions were that motion analysis in echocardiograms provides insightful information regarding the activation process and may enhance procedures such as CRT. (E-mail: Dan@bm.technion.ac.il )</description><subject>Activation sequence</subject><subject>Animals</subject><subject>Cardiac Pacing, Artificial - methods</subject><subject>Cardiac resynchronization therapy</subject><subject>Echocardiography - methods</subject><subject>Electrocardiography</subject><subject>Heart - physiology</subject><subject>Heart Conduction System - diagnostic imaging</subject><subject>Heart Conduction System - physiology</subject><subject>Heart Ventricles - diagnostic imaging</subject><subject>Models, Animal</subject><subject>Radiology</subject><subject>Sheep</subject><subject>Strain imaging</subject><subject>Stress, Mechanical</subject><subject>Time Factors</subject><subject>Tissue tracking</subject><subject>Ventricular Function - physiology</subject><issn>0301-5629</issn><issn>1879-291X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkcFu1DAQhi0EotvCKyCLA7eEsZ3EMQekaltKpQKHLhInLMeZdL3NxoudrLRvj8OuVMSJkyXPNzP29xPylkHOgFXvN_nUj8HELbaN8zkHqHLGc4DyGVmwWqqMK_bjOVmAAJaVFVdn5DzGDQDISsiX5IzJoihVpRbk5xWOaEfnB-o7Oq6RLk1onbH0Mt3uzZ_KPf6acLBImwP96vfY02u79nYG_UMwu7WzdOVinJCugrGPbnigX3Bc-_YVedGZPuLr03lBvn-6Xi0_Z3ffbm6Xl3eZLYQYM1XIDrqqEapoALmtoSproUojVCUZl6aTAhQyKFqBsmZ1Ijor26LhXduWQlyQd8e5u-DTW-Ooty5a7HszoJ-illBWhZJFAj8cQRt8jAE7vQtua8JBM9CzXb3Rf9vVs13NuE52U_Ob05apSeWn1pPOBFwdAUx_3TsMOlo3m2tdSJZ1693_7fn4zxjbu8FZ0z_iAePGT2FINjXTMTXo-znnOWaQKWLGlfgNMxSniw</recordid><startdate>20070601</startdate><enddate>20070601</enddate><creator>Rappaport, Dan</creator><creator>Konyukhov, Eugene</creator><creator>Shulman, Lilia</creator><creator>Friedman, Zvi</creator><creator>Lysyansky, Peter</creator><creator>Landesberg, Amir</creator><creator>Adam, Dan</creator><general>Elsevier Inc</general><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>20070601</creationdate><title>Detection of the Cardiac Activation Sequence by Novel Echocardiographic Tissue Tracking Method</title><author>Rappaport, Dan ; Konyukhov, Eugene ; Shulman, Lilia ; Friedman, Zvi ; Lysyansky, Peter ; Landesberg, Amir ; Adam, Dan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c433t-947f0f6b394b0e2c80658395a3967127af7309e104d3e7818c80fc7d4b2fdd533</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Activation sequence</topic><topic>Animals</topic><topic>Cardiac Pacing, Artificial - methods</topic><topic>Cardiac resynchronization therapy</topic><topic>Echocardiography - methods</topic><topic>Electrocardiography</topic><topic>Heart - physiology</topic><topic>Heart Conduction System - diagnostic imaging</topic><topic>Heart Conduction System - physiology</topic><topic>Heart Ventricles - diagnostic imaging</topic><topic>Models, Animal</topic><topic>Radiology</topic><topic>Sheep</topic><topic>Strain imaging</topic><topic>Stress, Mechanical</topic><topic>Time Factors</topic><topic>Tissue tracking</topic><topic>Ventricular Function - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rappaport, Dan</creatorcontrib><creatorcontrib>Konyukhov, Eugene</creatorcontrib><creatorcontrib>Shulman, Lilia</creatorcontrib><creatorcontrib>Friedman, Zvi</creatorcontrib><creatorcontrib>Lysyansky, Peter</creatorcontrib><creatorcontrib>Landesberg, Amir</creatorcontrib><creatorcontrib>Adam, Dan</creatorcontrib><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>Ultrasound in medicine & biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rappaport, Dan</au><au>Konyukhov, Eugene</au><au>Shulman, Lilia</au><au>Friedman, Zvi</au><au>Lysyansky, Peter</au><au>Landesberg, Amir</au><au>Adam, Dan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Detection of the Cardiac Activation Sequence by Novel Echocardiographic Tissue Tracking Method</atitle><jtitle>Ultrasound in medicine & biology</jtitle><addtitle>Ultrasound Med Biol</addtitle><date>2007-06-01</date><risdate>2007</risdate><volume>33</volume><issue>6</issue><spage>880</spage><epage>893</epage><pages>880-893</pages><issn>0301-5629</issn><eissn>1879-291X</eissn><abstract>Abstract Asynchronous cardiac activation leads to decreased pumping efficiency. Quantifying the activation sequence may optimize both the selection of patients for cardiac resynchronization therapy (CRT) and its efficacy. The feasibility of assessing the directivity and the degree of synchronous activation with ultrasound was examined. A tissue tracking method (CEB, GE-Ultrasound, AFI, GE Healthcare Inc., Wauwatosa, WI, USA) provided the regional strain profiles. The first maxima in systole of the regional circumferential strains were considered as the activation times. An integrative vector (SDV) describes the activation synchrony and directivity. In six open-chest sheep, activation maps and SDV were calculated in short-axis planes of the left ventricle for normal activation and induced pacings from the anterior and lateral free walls. Both magnitude and angle of the SDV were statistically different ( p < 0.05) for the different pacings. Localization of the pacing site was 3° ± 18° from true position. Conclusions were that motion analysis in echocardiograms provides insightful information regarding the activation process and may enhance procedures such as CRT. (E-mail: Dan@bm.technion.ac.il )</abstract><cop>England</cop><pub>Elsevier Inc</pub><pmid>17445969</pmid><doi>10.1016/j.ultrasmedbio.2006.12.005</doi><tpages>14</tpages></addata></record> |
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| subjects | Activation sequence Animals Cardiac Pacing, Artificial - methods Cardiac resynchronization therapy Echocardiography - methods Electrocardiography Heart - physiology Heart Conduction System - diagnostic imaging Heart Conduction System - physiology Heart Ventricles - diagnostic imaging Models, Animal Radiology Sheep Strain imaging Stress, Mechanical Time Factors Tissue tracking Ventricular Function - physiology |
| title | Detection of the Cardiac Activation Sequence by Novel Echocardiographic Tissue Tracking Method |
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