{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T05:14:56Z","timestamp":1788498896611,"version":"build-2803163510"},"reference-count":5,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T00:00:00Z","timestamp":1774569600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T00:00:00Z","timestamp":1774569600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pacing Clinical Electrophis"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Cryoablation is widely used for septal paroxysmal supraventricular tachycardia because of its lower risk of atrioventricular block; however, real\u2010time quantitative assessment of catheter\u2013tissue contact is limited.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods and Results<\/jats:title>\n                    <jats:p>We describe a modified configuration enabling visualization of the contact index (CI) during cryoablation with the Freezor Xtra catheter, supported by in vitro validation and two clinical cases. In vitro testing demonstrated progressive CI elevation with decreasing catheter\u2013tissue distance. Successful lesions were achieved at CI values of approximately 20%\u201325%. CI increased despite minimal electrogram changes and correlated with tissue proximity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>CI\u2010guided cryoablation is feasible and may improve contact assessment during septal ablation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/pace.70235","type":"journal-article","created":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T12:37:08Z","timestamp":1774615028000},"page":"1328-1331","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Optimization of Cryoablation Catheter\u2013Tissue Contact Using the Contact Index"],"prefix":"10.1111","volume":"49","author":[{"given":"Kentaro","family":"Hayashi","sequence":"first","affiliation":[{"name":"Department of Cardiology, Arrhythmia Center Ageo Central General Hospital  Ageo City Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3810-0635","authenticated-orcid":false,"given":"Takeshi","family":"Kitamura","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Arrhythmia Center Ageo Central General Hospital  Ageo City Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chihiro","family":"Izumi","sequence":"additional","affiliation":[{"name":"Department of Clinical Engineering Ageo Central General Hospital  Ageo City Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masashi","family":"Nagahara","sequence":"additional","affiliation":[{"name":"Department of Clinical Engineering Ageo Central General Hospital  Ageo City Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuichi","family":"Sahashi","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Arrhythmia Center Ageo Central General Hospital  Ageo City Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kyonghee","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Arrhythmia Center Ageo Central General Hospital  Ageo City Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haruki","family":"Sugiyama","sequence":"additional","affiliation":[{"name":"Department of Cardiology Ageo Central General Hospital  Ageo City Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shuzo","family":"Tanimoto","sequence":"additional","affiliation":[{"name":"Department of Cardiology Ageo Central General Hospital  Ageo City Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nobuhiko","family":"Ogata","sequence":"additional","affiliation":[{"name":"Department of Cardiology Ageo Central General Hospital  Ageo City Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takaaki","family":"Isshiki","sequence":"additional","affiliation":[{"name":"Department of Cardiology Ageo Central General Hospital  Ageo City Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,3,27]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehw455"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1540-8167.2003.03076.x"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/jce.12247"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1093\/europace\/eux269"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10840\u2010018\u20100452\u2010x"}],"container-title":["Pacing and Clinical Electrophysiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/pace.70235","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/pace.70235","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/pace.70235","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T04:23:57Z","timestamp":1788495837000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/pace.70235"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,3,27]]},"references-count":5,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2026,9]]}},"alternative-id":["10.1111\/pace.70235"],"URL":"https:\/\/doi.org\/10.1111\/pace.70235","archive":["Portico"],"relation":{},"ISSN":["0147-8389","1540-8159"],"issn-type":[{"value":"0147-8389","type":"print"},{"value":"1540-8159","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,3,27]]},"assertion":[{"value":"2026-03-05","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication 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