Browsing by Author "00239888-eb2a-44e9-bf44-8f291ed806f6"

Now showing items 1-7 of 7

    • A Stokes-residual backflow stabilization method applied tophysiological flows 
      Bertoglio, Cristóbal; Caiazzo, Alfonso (Elsevier, 2016-05)
      In computational fluid dynamics, the presence of incoming flow at open boundaries (backflow) might often yield unphysical oscillations and instabilities issues, even for moderate Reynolds numbers. It is widely accepted ...
    • Benchmark problems for numerical treatment of backflow at open boundaries 
      Bertoglio, Cristóbal; Caiazzo, Alfonso; Bazilevs, Yur; Braack, Malt; Esmaily, Mahdi; Gravemeier, Volker; Marsden, Alison L.; Pironneau, Olivier; Vignon Clementel, Irene E.; Wall, Wolfgang A. (Wiley, 2018)
      In computational fluid dynamics, incoming velocity at open boundaries, or backflow, often yields unphysical instabilities already for moderate Reynolds numbers. Several treatments to overcome these backflow instabilities ...
    • Estimation of Cardiovascular Relative Pressure Using Virtual Work-Energy 
      Marlevi, David; Ruijsink, Bram; Balmus, Maximilian; Dillon-Murphy, Desmond; Fovargue, Daniel; Pushparajah, Kuberan; Bertoglio, Cristóbal; Colarieti-Tosti, Massimiliano; Larsson, Matilda; Lamata, Pablo; Figueroa, C. Alberto; Razavi, Reza; Nordsletten, David A. (Nature Publishing Group, 2019)
      Many cardiovascular diseases lead to local increases in relative pressure, reflecting the higher costs of driving blood flow. The utility of this biomarker for stratifying the severity of disease has thus driven the ...
    • Junction of models of different dimension for flows in tube structures by Womersley-type interface conditions 
      Bertoglio, Cristóbal; Conca, Carlos; Nolte, David; Panasenko, Grigory; Pileckas, Konstantinas (Society for Industrial and Applied Mathematics Publications, 2019)
      © 2019 Society for Industrial and Applied MathematicsThe method of asymptotic partial decomposition of a domain proposed and justified earlier for thin domains (rod structures, tube structures consisting of a set of thin ...
    • Maximum likelihood estimation of cardiac fiber bundle orientation from arbitrarily spaced diffusion weighted images 
      Nagler, Andreas; Bertoglio, Cristóbal; Stoeck, Christian T.; Kozerke, Sebastián; Wall, Wolfgang A. (Elsevier, 2017)
      We propose an estimation scheme for local fiber bundle direction in the left ventricle directly from gray values of arbitrarily spaced cardiac diffusion weighted images (DWI). The approach is based on a parametric and ...
    • Multiphysics modeling of the atrial systole under standard ablation strategies 
      Hörmann, Julia M.; Bertoglio, Cristóbal; Nagler, Andreas; Pfaller, Martin R.; Bourier, Felix; Hadamitzky, Martin; Deisenhofer, Isabel; Wall, Wolfgang A. (Springer, 2017-06)
      The aim of this study was to develop a computational framework to compare the impact of standard ablation concepts on the mechanical performance of the atria, since different line combinations cannot be applied in practice ...
    • Relative pressure estimation from velocity measurements in blood flows: State-of-the-art and new approaches 
      Bertoglio, Cristóbal; Nunez, Rodolfo; Galarce, Felipe; Nordsletten, David; Osses, Axel (Wiley, 2018)
      The relative pressure difference across stenotic blood vessels serves as an important clinical index for the diagnosis of many cardiovascular diseases. While the clinical gold standard for relative pressure difference ...