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Victoria Delgado, MD, Arnold C. T. Ng, MBBS, Joanne D

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1 Automated Assessment of the Aortic Root Dimensions With Multidetector Row Computed Tomography 
Victoria Delgado, MD, Arnold C.T. Ng, MBBS, Joanne D. Schuijf, PhD, Frank van der Kley, MD, Miriam Shanks, MD, Laurens F. Tops, MD, PhD, Nico R.L. van de Veire, MD, PhD, Albert de Roos, MD, PhD, Lucia J.M. Kroft, MD, PhD, Martin J. Schalij, MD, PhD, Jeroen J. Bax, MD, PhD  The Annals of Thoracic Surgery  Volume 91, Issue 3, Pages (March 2011) DOI: /j.athoracsur Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions

2 Fig 1 The automated postprocessing multidetector 3mensio Valves computed tomography data software (3mensio Medical Imaging BV, Bilthoven, The Netherlands) is used to segment the aortic root. (A) A centerline across the aorta (superimposed on 3-dimensional volume rendering) permits fast orientation of the orthogonal multiplanar reformation planes. By moving the transverse plane along the center line, the diameters of the (B) left ventricular outflow tract, (C) aortic valve annulus, (D) sinus of Valsalva, and the (E) relative distances between the coronary ostia and the aortic valve annular plane can be measured on the stretched views or in the double oblique views. (LCC = left coronary cusp; NCC = noncoronary cusp; RCC = right coronary cusp; RCA = right coronary artery.) The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur ) Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions

3 Fig 2 Selection of the most appropriate angiographic projections for transcatheter aortic valve implantation shows (A) the 3-dimensional volume rendering of the aortic root with the transversal plane across the centerline and (B) the volume rendering of the region of interest (aortic root) that can be automatically obtained and oriented to define the most appropriate angiographic projections during the transcatheter aortic valve implantation procedure. (Cran Caud = craniocaudal; LAO = left anterior oblique.) The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur ) Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions

4 Fig 3 Bland-Altman plots show the agreements between multidetector computed tomography (MDCT) manual and automated assessment of the aortic valve annular dimensions: (A) minimum and (B) maximum diameters. The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur ) Copyright © 2011 The Society of Thoracic Surgeons Terms and Conditions

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