Automated Template Matching to Pinpoint the Origin of Right Ventricular Outflow Tract Tachycardia
Background: Template matching, a technique that examines the similarity between two QRS complexes, has not been broadly applied clinically. Methods: The 16 patients enrolled in this study underwent radiofrequency catheter ablation (RFCA) at the site of five ventricular tachycardias (VT) and of prema...
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| Veröffentlicht in: | Pacing and clinical electrophysiology 2009-03, Vol.32 (s1), p.S47-S51 |
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| container_title | Pacing and clinical electrophysiology |
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| creator | KUROSAKI, KENJI NOGAMI, AKIHIKO SAKAMAKI, MIHIKO KOWASE, SHINYA SUGIYASU, AIKO OGINOSAWA, YASUSHI KUBOTA, SHOICHI |
| description | Background: Template matching, a technique that examines the similarity between two QRS complexes, has not been broadly applied clinically.
Methods: The 16 patients enrolled in this study underwent radiofrequency catheter ablation (RFCA) at the site of five ventricular tachycardias (VT) and of premature ventricular contractions (PVC) arising from 25 sites in the right ventricular outflow tract (RVOT), under the guidance of conventional pace and activation mapping. After RFCA, (a) a template‐matching score using a correlation coefficient, and (b) a pace‐map score were calculated at 30 successful and 48 unsuccessful ablation sites.
Results: The template‐matching score at successful ablation sites (94 ± 4%) was significantly higher than at unsuccessful (85 ± 9%) ablation sites (P < 0.001). A ≥ 90% average matching score identified successful ablation sites with a sensitivity of 90% and specificity of 69%. While there was a significant correlation between the template‐matching score and visually judged pace‐map score (r = 0.63, P < 0.0001), the area under the receiver operating characteristic curve of the template matching score was larger than that of the pace‐map score (0.80 vs. 0.67).
Conclusions: Automated template matching was useful for localizing the optimal ablation site during RFCA of RVOT‐VT/PVC. |
| doi_str_mv | 10.1111/j.1540-8159.2008.02226.x |
| format | Article |
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Methods: The 16 patients enrolled in this study underwent radiofrequency catheter ablation (RFCA) at the site of five ventricular tachycardias (VT) and of premature ventricular contractions (PVC) arising from 25 sites in the right ventricular outflow tract (RVOT), under the guidance of conventional pace and activation mapping. After RFCA, (a) a template‐matching score using a correlation coefficient, and (b) a pace‐map score were calculated at 30 successful and 48 unsuccessful ablation sites.
Results: The template‐matching score at successful ablation sites (94 ± 4%) was significantly higher than at unsuccessful (85 ± 9%) ablation sites (P < 0.001). A ≥ 90% average matching score identified successful ablation sites with a sensitivity of 90% and specificity of 69%. While there was a significant correlation between the template‐matching score and visually judged pace‐map score (r = 0.63, P < 0.0001), the area under the receiver operating characteristic curve of the template matching score was larger than that of the pace‐map score (0.80 vs. 0.67).
Conclusions: Automated template matching was useful for localizing the optimal ablation site during RFCA of RVOT‐VT/PVC.</description><identifier>ISSN: 0147-8389</identifier><identifier>EISSN: 1540-8159</identifier><identifier>DOI: 10.1111/j.1540-8159.2008.02226.x</identifier><identifier>PMID: 19250111</identifier><language>eng</language><publisher>Malden, USA: Blackwell Publishing Inc</publisher><subject>Adolescent ; Adult ; Aged ; Algorithms ; Artificial Intelligence ; Body Surface Potential Mapping - methods ; catheter ablation ; Catheter Ablation - methods ; Humans ; Middle Aged ; pace mapping ; Pattern Recognition, Automated - methods ; Reproducibility of Results ; right ventricular outflow tract ; Sensitivity and Specificity ; Tachycardia, Ventricular - diagnosis ; Tachycardia, Ventricular - surgery ; template matching ; Therapy, Computer-Assisted - methods ; Ventricular Outflow Obstruction - diagnosis ; Ventricular Outflow Obstruction - surgery ; ventricular tachycardia ; Young Adult</subject><ispartof>Pacing and clinical electrophysiology, 2009-03, Vol.32 (s1), p.S47-S51</ispartof><rights>2009, The Authors. Journal compilation ©2009 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4726-c7f6d605d777529789341924e50bd8e6abc7620ca58237819916d4633708e75c3</citedby><cites>FETCH-LOGICAL-c4726-c7f6d605d777529789341924e50bd8e6abc7620ca58237819916d4633708e75c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fj.1540-8159.2008.02226.x$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fj.1540-8159.2008.02226.x$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/19250111$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>KUROSAKI, KENJI</creatorcontrib><creatorcontrib>NOGAMI, AKIHIKO</creatorcontrib><creatorcontrib>SAKAMAKI, MIHIKO</creatorcontrib><creatorcontrib>KOWASE, SHINYA</creatorcontrib><creatorcontrib>SUGIYASU, AIKO</creatorcontrib><creatorcontrib>OGINOSAWA, YASUSHI</creatorcontrib><creatorcontrib>KUBOTA, SHOICHI</creatorcontrib><title>Automated Template Matching to Pinpoint the Origin of Right Ventricular Outflow Tract Tachycardia</title><title>Pacing and clinical electrophysiology</title><addtitle>Pacing Clin Electrophysiol</addtitle><description>Background: Template matching, a technique that examines the similarity between two QRS complexes, has not been broadly applied clinically.
Methods: The 16 patients enrolled in this study underwent radiofrequency catheter ablation (RFCA) at the site of five ventricular tachycardias (VT) and of premature ventricular contractions (PVC) arising from 25 sites in the right ventricular outflow tract (RVOT), under the guidance of conventional pace and activation mapping. After RFCA, (a) a template‐matching score using a correlation coefficient, and (b) a pace‐map score were calculated at 30 successful and 48 unsuccessful ablation sites.
Results: The template‐matching score at successful ablation sites (94 ± 4%) was significantly higher than at unsuccessful (85 ± 9%) ablation sites (P < 0.001). A ≥ 90% average matching score identified successful ablation sites with a sensitivity of 90% and specificity of 69%. While there was a significant correlation between the template‐matching score and visually judged pace‐map score (r = 0.63, P < 0.0001), the area under the receiver operating characteristic curve of the template matching score was larger than that of the pace‐map score (0.80 vs. 0.67).
Conclusions: Automated template matching was useful for localizing the optimal ablation site during RFCA of RVOT‐VT/PVC.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Algorithms</subject><subject>Artificial Intelligence</subject><subject>Body Surface Potential Mapping - methods</subject><subject>catheter ablation</subject><subject>Catheter Ablation - methods</subject><subject>Humans</subject><subject>Middle Aged</subject><subject>pace mapping</subject><subject>Pattern Recognition, Automated - methods</subject><subject>Reproducibility of Results</subject><subject>right ventricular outflow tract</subject><subject>Sensitivity and Specificity</subject><subject>Tachycardia, Ventricular - diagnosis</subject><subject>Tachycardia, Ventricular - surgery</subject><subject>template matching</subject><subject>Therapy, Computer-Assisted - methods</subject><subject>Ventricular Outflow Obstruction - diagnosis</subject><subject>Ventricular Outflow Obstruction - surgery</subject><subject>ventricular tachycardia</subject><subject>Young Adult</subject><issn>0147-8389</issn><issn>1540-8159</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNkEtrGzEURkVJaZy0f6Fo1d1M9JZmUzAmj4JTm-A2SyFrNLbceTiShtj_vjOxSbe9m3tB3z1XHAAgRjke6maXY85QpjAvcoKQyhEhROSHD2Dy_nABJggzmSmqiktwFeMOISQQ45_AJS4IRwNoAsy0T11jkivhyjX7epjgo0l269sNTB1c-nbf-TbBtHVwEfzGt7Cr4JPfbBP87doUvO1rE-CiT1XdvcJVMDbBlbHbozWh9OYz-FiZOrov534Nft3drmYP2Xxx_2M2nWeWSSIyKytRCsRLKSUnhVQFZcM3meNoXSonzNpKQZA1XBEqFS4KLEomKJVIOcktvQbfTtx96F56F5NufLSurk3ruj5qIQqlBGNDUJ2CNnQxBlfpffCNCUeNkR716p0eLerRoh716je9-jCsfj3f6NeNK_8tnn0Oge-nwKuv3fG_wXo5nd2O4wDITgAfkzu8A0z4o4Wkkuvnn_eaUTqfyeelfqJ_ASa_lzQ</recordid><startdate>200903</startdate><enddate>200903</enddate><creator>KUROSAKI, KENJI</creator><creator>NOGAMI, AKIHIKO</creator><creator>SAKAMAKI, MIHIKO</creator><creator>KOWASE, SHINYA</creator><creator>SUGIYASU, AIKO</creator><creator>OGINOSAWA, YASUSHI</creator><creator>KUBOTA, SHOICHI</creator><general>Blackwell Publishing Inc</general><scope>BSCLL</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>200903</creationdate><title>Automated Template Matching to Pinpoint the Origin of Right Ventricular Outflow Tract Tachycardia</title><author>KUROSAKI, KENJI ; NOGAMI, AKIHIKO ; SAKAMAKI, MIHIKO ; KOWASE, SHINYA ; SUGIYASU, AIKO ; OGINOSAWA, YASUSHI ; KUBOTA, SHOICHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4726-c7f6d605d777529789341924e50bd8e6abc7620ca58237819916d4633708e75c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Algorithms</topic><topic>Artificial Intelligence</topic><topic>Body Surface Potential Mapping - methods</topic><topic>catheter ablation</topic><topic>Catheter Ablation - methods</topic><topic>Humans</topic><topic>Middle Aged</topic><topic>pace mapping</topic><topic>Pattern Recognition, Automated - methods</topic><topic>Reproducibility of Results</topic><topic>right ventricular outflow tract</topic><topic>Sensitivity and Specificity</topic><topic>Tachycardia, Ventricular - diagnosis</topic><topic>Tachycardia, Ventricular - surgery</topic><topic>template matching</topic><topic>Therapy, Computer-Assisted - methods</topic><topic>Ventricular Outflow Obstruction - diagnosis</topic><topic>Ventricular Outflow Obstruction - surgery</topic><topic>ventricular tachycardia</topic><topic>Young Adult</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>KUROSAKI, KENJI</creatorcontrib><creatorcontrib>NOGAMI, AKIHIKO</creatorcontrib><creatorcontrib>SAKAMAKI, MIHIKO</creatorcontrib><creatorcontrib>KOWASE, SHINYA</creatorcontrib><creatorcontrib>SUGIYASU, AIKO</creatorcontrib><creatorcontrib>OGINOSAWA, YASUSHI</creatorcontrib><creatorcontrib>KUBOTA, SHOICHI</creatorcontrib><collection>Istex</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>Pacing and clinical electrophysiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>KUROSAKI, KENJI</au><au>NOGAMI, AKIHIKO</au><au>SAKAMAKI, MIHIKO</au><au>KOWASE, SHINYA</au><au>SUGIYASU, AIKO</au><au>OGINOSAWA, YASUSHI</au><au>KUBOTA, SHOICHI</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Automated Template Matching to Pinpoint the Origin of Right Ventricular Outflow Tract Tachycardia</atitle><jtitle>Pacing and clinical electrophysiology</jtitle><addtitle>Pacing Clin Electrophysiol</addtitle><date>2009-03</date><risdate>2009</risdate><volume>32</volume><issue>s1</issue><spage>S47</spage><epage>S51</epage><pages>S47-S51</pages><issn>0147-8389</issn><eissn>1540-8159</eissn><abstract>Background: Template matching, a technique that examines the similarity between two QRS complexes, has not been broadly applied clinically.
Methods: The 16 patients enrolled in this study underwent radiofrequency catheter ablation (RFCA) at the site of five ventricular tachycardias (VT) and of premature ventricular contractions (PVC) arising from 25 sites in the right ventricular outflow tract (RVOT), under the guidance of conventional pace and activation mapping. After RFCA, (a) a template‐matching score using a correlation coefficient, and (b) a pace‐map score were calculated at 30 successful and 48 unsuccessful ablation sites.
Results: The template‐matching score at successful ablation sites (94 ± 4%) was significantly higher than at unsuccessful (85 ± 9%) ablation sites (P < 0.001). A ≥ 90% average matching score identified successful ablation sites with a sensitivity of 90% and specificity of 69%. While there was a significant correlation between the template‐matching score and visually judged pace‐map score (r = 0.63, P < 0.0001), the area under the receiver operating characteristic curve of the template matching score was larger than that of the pace‐map score (0.80 vs. 0.67).
Conclusions: Automated template matching was useful for localizing the optimal ablation site during RFCA of RVOT‐VT/PVC.</abstract><cop>Malden, USA</cop><pub>Blackwell Publishing Inc</pub><pmid>19250111</pmid><doi>10.1111/j.1540-8159.2008.02226.x</doi><tpages>5</tpages></addata></record> |
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| ispartof | Pacing and clinical electrophysiology, 2009-03, Vol.32 (s1), p.S47-S51 |
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| source | MEDLINE; Wiley Online Library Journals Frontfile Complete |
| subjects | Adolescent Adult Aged Algorithms Artificial Intelligence Body Surface Potential Mapping - methods catheter ablation Catheter Ablation - methods Humans Middle Aged pace mapping Pattern Recognition, Automated - methods Reproducibility of Results right ventricular outflow tract Sensitivity and Specificity Tachycardia, Ventricular - diagnosis Tachycardia, Ventricular - surgery template matching Therapy, Computer-Assisted - methods Ventricular Outflow Obstruction - diagnosis Ventricular Outflow Obstruction - surgery ventricular tachycardia Young Adult |
| title | Automated Template Matching to Pinpoint the Origin of Right Ventricular Outflow Tract Tachycardia |
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