{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,9,15]],"date-time":"2024-09-15T12:58:01Z","timestamp":1726405081195},"reference-count":27,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2016,5,24]],"date-time":"2016-05-24T00:00:00Z","timestamp":1464048000000},"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":[[2017,4]]},"abstract":"<jats:sec><jats:title>Aim<\/jats:title><jats:p>Transcatheter mitral valve implantation (TMVI) is a novel technology for patients with severe mitral valve disease but at high surgical risk. Imaging guidance during the procedure is critical for successful device deployment. Identification of the mitral annular plane (MAP) with fluoroscopy during the procedure is limited by lack of clearly defined landmarks. We hypothesized that a plane defined by left circumflex\u2010right coronary arteries (LCX\u2010RCA) would have a consistent relationship to MAP.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods and results<\/jats:title><jats:p>We studied 25 patients with gated cardiac computed tomography. We identified the MAP and the LCX\u2010RCA plane in mid systole and diastole. The distance between the two planes in prespecified four points (anterior, posterior, medial, and lateral) in the apical 2 and 3\u2010chamber views. Alignment of the planes was described by cranial\/caudal angulation for both planes in RAO 30\u00b0 and LAO 90\u00b0 (lateral) angulation. Mean age was 81\u2009\u00b1\u20099 years, 56% of patients had \u22652+ mitral regurgitation. In mid systole, the distances between the LCX\u2010RCA plane and the MAP in the four points were\u2009&lt;\u20095 mm in 92% of patients. In mid diastole, distances were\u2009&lt;\u20095 mm in 100% of patients. In mid systole, the correlation between the caudal\/cranial orientations of the 2 planes was 0.85 and 0.80 in the LAO 90\u00b0 and RAO 30\u00b0, respectively (<jats:italic>P<\/jats:italic>\u2009=\u2009&lt;0.001). In mid diastole, this was 0.92 and 0.92 in the LAO 90\u00b0 and RAO 30\u00b0, respectively (<jats:italic>P<\/jats:italic>\u2009=\u2009&lt;0.001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>LCX\u2010RCA plane has a close and consistent relationship to the MAP and can be useful to guide TMVI.<\/jats:p><jats:p>Accurate imaging of mitral valve annular plane during TMVI procedure is challenging. MAP guided by fluoroscopy might be crucial to guide successful prosthesis deployment. A plane defined by the left circumflex\u2010 right coronary arteries in the atrioventricular grove has a consistent relationship with MAP; this can be used aided by pre\u2010procedural MDCT to guide TMVI procedure. \u00a9 2016 Wiley Periodicals, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ccd.26575","type":"journal-article","created":{"date-parts":[[2016,5,24]],"date-time":"2016-05-24T23:41:35Z","timestamp":1464133295000},"page":"932-943","source":"Crossref","is-referenced-by-count":2,"title":["Relationship of mitral valve annulus plane and circumflex\u2010right coronary artery plane: Implications for transcatheter mitral valve implantation"],"prefix":"10.1002","volume":"89","author":[{"given":"Samir R.","family":"Kapadia","sequence":"first","affiliation":[{"name":"Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic Foundation  Ohio"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amgad","family":"Mentias","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic Foundation  Ohio"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amr F.","family":"Barakat","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic Foundation  Ohio"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohammad Q.","family":"Raza","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic Foundation  Ohio"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kanhaiya","family":"Lal Poddar","sequence":"additional","affiliation":[{"name":"Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic Foundation  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