Patents by Inventor Razvan Ioan Ionasec

Razvan Ioan Ionasec has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110060576
    Abstract: A method and system for generating a patient specific anatomical heart model is disclosed. A sequence of volumetric image data, such as computed tomography (CT), echocardiography, or magnetic resonance (MR) image data of a patient's cardiac region is received. A multi-component patient specific 4D geometric model of the heart and aorta estimated from the sequence of volumetric cardiac imaging data. A patient specific 4D computational model based on one or more of personalized geometry, material properties, fluid boundary conditions, and flow velocity measurements in the 4D geometric model is generated. Patient specific material properties of the aortic wall are estimated using the 4D geometrical model and the 4D computational model. Fluid Structure Interaction (FSI) simulations are performed using the 4D computational model and estimated material properties of the aortic wall, and patient specific clinical parameters are extracted based on the FSI simulations.
    Type: Application
    Filed: June 29, 2010
    Publication date: March 10, 2011
    Applicant: Siemens Corporation
    Inventors: Puneet Sharma, Bogdan Georgescu, Razvan Ioan Ionasec, Dorin Comaniciu
  • Publication number: 20100280352
    Abstract: A method and system for generating a patient specific anatomical heart model is disclosed. Volumetric image data, such as computed tomography (CT), echocardiography, or magnetic resonance (MR) image data of a patient's cardiac region is received. Individual models for multiple heart components, such as the left ventricle (LV) endocardium, LV epicardium, right ventricle (RV), left atrium (LA), right atrium (RA), mitral valve, aortic valve, aorta, and pulmonary trunk, are estimated in said volumetric cardiac image data. A multi-component patient specific anatomical heart model is generated by integrating the individual models for each of the heart components. Fluid Structure Interaction (FSI) simulations are performed on the patient specific anatomical model, and patient specific clinical parameters are extracted based on the patient specific heart model and the FSI simulations. Disease progression modeling and risk stratification are performed based on the patient specific clinical parameters.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 4, 2010
    Applicant: Siemens Corporation
    Inventors: Razvan Ioan Ionasec, Puneet Sharma, Bogdan Georgescu, Andrey Torzhkov, Fabian Moerchen, Gayle M. Wittenberg, Dmitriy Fradkin, Dorin Comaniciu
  • Publication number: 20100240996
    Abstract: Heart valve operation is assessed with patient-specific medical diagnostic imaging data. To deal with the complex motion of the passive valve tissue, a hierarchal model is used. Rigid global motion of the overall valve, non-rigid local motion of landmarks of the valve, and surface motion of the valve are modeled sequentially. For the non-rigid local motion, a spectral trajectory approach is used in the model to determine location and motion of the landmarks more efficiently than detection and tracking. Given efficiencies in processing, more than one valve may be modeled at a same time. A graphic overlay representing the valve in four dimensions and/or quantities may be provided during an imaging session. One or more of these features may be used in combination or independently.
    Type: Application
    Filed: February 8, 2010
    Publication date: September 23, 2010
    Inventors: Razvan Ioan Ionasec, Ingmar Voigt, Yang Wang, Bogdan Georgescu, Helene C. Houle, Dorin Comaniciu, Fernando Vega-Higuera
  • Publication number: 20100239147
    Abstract: A method and system for modeling the pulmonary trunk in 4D image data, such as 4D CT data, and model-based percutaneous pulmonary valve implantation (PPVI) intervention is disclosed. A patient-specific dynamic pulmonary trunk data is generated from 4D image data of a patient. The patient is automatically classified as suitable for PPVI intervention or not suitable for PPVI intervention based on the generated patient-specific dynamic pulmonary trunk model.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 23, 2010
    Applicants: Siemens Corporation, Siemens Aktiengesellschaft
    Inventors: Dime Vitanovski, Razvan Ioan Ionasec, Bogdan Georgescu, Martin Huber, Dorin Comaniciu