{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T16:36:31Z","timestamp":1784133391267,"version":"3.55.0"},"reference-count":30,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2012,12,26]],"date-time":"2012-12-26T00:00:00Z","timestamp":1356480000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cathet Cardio Intervent"],"published-print":{"date-parts":[[2013,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To test the ability of a model\u2010based segmentation of the aortic root for consistent assessment of aortic valve structures in patients considered for transcatheter aortic valve implantation (TAVI) who underwent 256\u2010slice cardiac computed tomography (CT).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Consecutive patients (<jats:italic>n<\/jats:italic> = 49) with symptomatic severe aortic stenosis considered for TAVI and patients without aortic stenosis (<jats:italic>n<\/jats:italic> = 17) underwent cardiac CT. Images were evaluated by two independent observers who measured the diameter of the aortic annulus and its distance to both coronary ostia (1) manually and (2) software\u2010assisted. All acquired measures were compared with each other and to (3) fully automatic quantification.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>High correlations were observed for 3D measures of the aortic annulus conducted on multiple oblique planes (<jats:italic>r<\/jats:italic> = 0.87 and 0.84 between observers and model\u2010based measures, and <jats:italic>r<\/jats:italic> = 0.81 between observers). Reproducibility was further improved by software\u2010assisted versus manual assessment for all the acquired variables (<jats:italic>r<\/jats:italic> = 0.98 versus 0.81 for annulus diameter, <jats:italic>r<\/jats:italic> = 0.94 versus 0.85 for distance to the left coronary ostium, <jats:italic>P<\/jats:italic> &lt; 0.01 for both). Thus, using software\u2010assisted measurements very low limits of agreement were observed for the annulus diameter (95%CI of \u22121.2 to 0.6 mm) and within very low time\u2010spent (0.6 \u00b1 0.1 min for software\u2010assisted versus 1.6 \u00b1 0.3 min per patient for manual assessment, <jats:italic>P<\/jats:italic> &lt; 0.001). Assessment of the aortic annulus using the 3D model\u2010based instead of manual 2D\u2010coronal measurements would have modified the implantation strategy in 12 of 49 patients (25%) with aortic stenosis. Four of 12 patients with potentially modified implantation strategy yielded postprocedural moderate paravalvular regurgitation, which may have been avoided by implantation of a larger prosthesis, as suggested by automatic 3D measures.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Our study highlights the usefulness of software\u2010assisted preprocedural assessment of the aortic annulus in patients considered for TAVI. \u00a9 2012 Wiley Periodicals, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ccd.23486","type":"journal-article","created":{"date-parts":[[2012,12,26]],"date-time":"2012-12-26T14:44:45Z","timestamp":1356533085000},"page":"148-159","source":"Crossref","is-referenced-by-count":17,"title":["Objective quantification of aortic valvular structures by cardiac computed tomography angiography in patients considered for transcatheter aortic valve implantation"],"prefix":"10.1002","volume":"81","author":[{"given":"Grigorios","family":"Korosoglou","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gitsios","family":"Gitsioudis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irina","family":"Waechter\u2010Stehle","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juergen","family":"Weese","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ulrike","family":"Krumsdorf","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emmanuel","family":"Chorianopoulos","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Waldemar","family":"Hosch","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hans\u2010Ulrich","family":"Kauczor","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hugo A.","family":"Katus","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Raffi","family":"Bekeredjian","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,12,26]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2003.11.026"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.106.639450"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehn183"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.105.582882"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCINTERVENTIONS.110.959692"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCINTERVENTIONS.110.944983"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2006.01.049"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCINTERVENTIONS.108.780858"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00330-010-1753-3"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2009.04.075"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcmg.2007.12.006"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehp534"},{"key":"e_1_2_6_14_2","first-page":"526","article-title":"Patient specific models for planning and guidance of minimally invasive aortic valve implantation","volume":"13","author":"Waechter I","year":"2010","journal-title":"Med Image Comput Comput Assist Interv"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjcard.2009.01.034"},{"key":"e_1_2_6_16_2","doi-asserted-by":"publisher","DOI":"10.1109\/TMI.2008.918330"},{"key":"e_1_2_6_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-8703(51)90002-6"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(86)90837-8"},{"key":"e_1_2_6_19_2","first-page":"64","article-title":"Transcatheter aortic valve implantation: What lies ahead?","volume":"5","author":"Piazza N","year":"2010","journal-title":"Hospital Chronicles"},{"key":"e_1_2_6_20_2","doi-asserted-by":"publisher","DOI":"10.1093\/ejechocard\/jen245"},{"key":"e_1_2_6_21_2","doi-asserted-by":"publisher","DOI":"10.4244\/EIJV6I1A15"},{"key":"e_1_2_6_22_2","doi-asserted-by":"publisher","DOI":"10.1002\/ccd.22641"},{"key":"e_1_2_6_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcmg.2007.09.004"},{"key":"e_1_2_6_24_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1540-8175.2010.01353.x"},{"key":"e_1_2_6_25_2","doi-asserted-by":"publisher","DOI":"10.1136\/hrt.2011.223974"},{"key":"e_1_2_6_26_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2009.06.063"},{"key":"e_1_2_6_27_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcin.2009.07.003"},{"key":"e_1_2_6_28_2","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehq093"},{"key":"e_1_2_6_29_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejrad.2010.07.011"},{"key":"e_1_2_6_30_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcmg.2010.08.016"},{"key":"e_1_2_6_31_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00330-010-1907-3"}],"container-title":["Catheterization and Cardiovascular Interventions"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fccd.23486","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ccd.23486","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,16]],"date-time":"2023-10-16T13:01:04Z","timestamp":1697461264000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/ccd.23486"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,12,26]]},"references-count":30,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2013,1]]}},"alternative-id":["10.1002\/ccd.23486"],"URL":"https:\/\/doi.org\/10.1002\/ccd.23486","archive":["Portico"],"relation":{},"ISSN":["1522-1946","1522-726X"],"issn-type":[{"value":"1522-1946","type":"print"},{"value":"1522-726X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,12,26]]}}}