CT angiography in highly calcified arteries: 2D manual vs. modified automated 3D approach to identify coronary stenoses

The International Journal of Cardiovascular Imaging
M A S CordeiroCarlos E Rochitte

Abstract

Two-dimensional axial and manually-oriented reformatted images are traditionally used to analyze coronary data provided by multidetector-row computed tomography angiography (MDCTA). While apparently more accurate in evaluating calcified vessels, 2D methods are time-consuming compared with automated 3D approaches. The purpose of this study was to evaluate the performance of a modified automated 3D approach (using manual vessel isolation and different window and level settings) in a population with high calcium scores who underwent coronary half-millimeter 16-detector-row CT angiography (16 x 0.5-MDCTA). ECG-gated 16 x 0.5-MDCTA (16 x 0.5 mm cross-sections, 0.35 x 0.35 x 0.35 mm3 isotropic voxels, 400 ms rotation) was performed after injection of iopamidol (120-ml, 300 mg/ml) in 19 consecutive patients (11 male, 62+/-10 years-old). Native arteries were independently evaluated for >or=50%-stenoses using both manual 2D and modified automated 3D approaches. Stents and bypass grafts were excluded. Conventional coronary angiography was visually analyzed by 2 observers. Median Agatston calcium score was 434. Sensitivities, specificities, positive and negative predictive values for detection of >or=50% coronary stenoses using the 2D and...Continue Reading

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Citations

Mar 16, 2006·The International Journal of Cardiovascular Imaging·Gabija PundziuteErnst E van der Wall
Jan 12, 2007·The International Journal of Cardiovascular Imaging·Edith BordeleauCarl Chartrand-Lefebvre
Sep 30, 2008·The International Journal of Cardiovascular Imaging·Anja J ReimannMartin Heuschmid
Sep 25, 2015·Brain Injury : [BI]·Naser AhmadiNutan Vaidya
May 11, 2011·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·Yan XuPunam K Saha
Aug 14, 2010·Radiologic Clinics of North America·Pamela T Johnson, Elliot K Fishman
Feb 5, 2010·Journal of Cardiovascular Computed Tomography·Erik Bekkers, Justus Roos
Dec 17, 2008·Journal of Cardiovascular Computed Tomography·Mannudeep K Kalra, Thomas J Brady
Jul 31, 2007·Academic Radiology·Murat OzgunDavid Maintz
Apr 25, 2006·Journal of the American College of Cardiology·Marco A S Cordeiro, João A C Lima
May 20, 2018·Administration and Policy in Mental Health·Joseph Blocher

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