Patents by Inventor Helene C. Houle

Helene C. Houle 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: 20220079552
    Abstract: For cardiac flow detection in echocardiography, by detecting one or more valves, sampling planes or flow regions spaced from the valve and/or based on multiple valves are identified. A confidence of the detection may be used to indicate confidence of calculated quantities and/or to place the sampling planes.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Inventors: Huseyin Tek, Bogdan Georgescu, Tommaso Mansi, Frank Sauer, Dorin Comaniciu, Helene C. Houle, Ingmar Voigt
  • Publication number: 20210264644
    Abstract: A method, apparatus, and computer readable storage medium are provided herein for constructing a representation of an annular structure associated with an anatomical object. The method includes receiving three-dimensional image data of the anatomical object and detecting at least a first landmark point and a second landmark point on the annular structure. A plane positioned between the first landmark point and the second landmark point, and oriented in accordance with a predefined angular relationship to a line connecting the first landmark point and the second landmark point is determined. A third landmark point on the annular structure which lies in the plane is also detected and the representation of the annular structure is generated using at least the first landmark point, the second landmark point, and the third landmark point. The representation is then outputted.
    Type: Application
    Filed: February 12, 2021
    Publication date: August 26, 2021
    Inventors: Yue Zhang, Abdoul Amadou, Ingmar Voigt, Viorel Mihalef, Rui Liao, Tommaso Mansi, Matthias John, Bimba Rao, Helene C. Houle
  • Patent number: 10751943
    Abstract: In personalized object creation, for implants, medical imaging is used to derive a model personalized to a patient. The model may be of a dynamic structure, such as part of the cardiovascular system, and is used to print the implant itself. The model may be used to print a mold to create the implant, a scaffold on which to grow tissue, and/or tissue itself. In another or additional approach, the medical imaging information is used to determine tissue properties. Differences in a material property of the anatomy is mapped to different materials used by a multi-material 3D printer, resulting in a printed object reflecting the size, shape, and/or other material property of the anatomy of the patient.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: August 25, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Sasa Grbic, Michael Suehling, Tommaso Mansi, Ingmar Voigt, Razvan Ionasec, Bogdan Georgescu, Helene C. Houle, Dorin Comaniciu, Charles Henri Florin, Philipp Hoelzer
  • Patent number: 10660613
    Abstract: For measurement point determination in imaging with a medical scanner, the user selects a location on the image. Rather than using that location, an “intended” location corresponding to a local boundary or landmark represented in the image is identified. The medical scanner uses the simple user interface to more exactly determine points for measurement. One or more rays are cast from the user selected location. The actual location is found by examining data along the ray or rays. For 2D imaging, the rays are cast in the plane. For 3D imaging, the ray is cast along a view direction to find the depth. The intensities along the ray or around the ray are used to find the actual location, such as by application of a machine-learnt classifier to the limited region around the ray or by finding intensities along the ray relative to a threshold.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: May 26, 2020
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Ingmar Voigt, Tommaso Mansi, Helene C. Houle
  • Patent number: 10485510
    Abstract: A processor acquires image data from a medical imaging system. The processor generates a first model from the image data. The processor generates a computational model which includes cardiac electrophysiology and cardiac mechanics estimated from the first model. The processor performs tests on the computational model to determine outcomes for therapies. The processor overlays the outcome on an interventional image. Using interventional imaging, the first heart model may be updated/overlaid during the therapy to visualize its effect on a patient's heart.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: November 26, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Tommaso Mansi, Tiziano Passerini, Bogdan Georgescu, Ali Kamen, Helene C. Houle, Alexander Brost, Dorin Comaniciu
  • Publication number: 20190269379
    Abstract: For quantification of blood flow by an ultrasound system, B-mode images generated with a multi-transmit, coherent image formation produce swirling or other speckle patterns in the blood regions. These patterns, as represented in specially formed B-mode images, are tracked over time to indicate two or three-dimensional velocity vectors of the blood at a B-mode resolution. Various visualizations may be provided at the same resolution, including the velocity flow field, flow direction, vorticity, vortex size, vortex shape, and/or divergence.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 5, 2019
    Inventors: Ankur Kapoor, Tommaso Mansi, Kutay F. Ustuner, Helene C. Houle, Ismayil M. Guracar, Rickard C. Loftman
  • Patent number: 10321892
    Abstract: Computerized characterization of cardiac wall motion is provided. Quantities for cardiac wall motion are determined from a four-dimensional (i.e., 3D+time) sequence of ultrasound data. A processor automatically processes the volume data to locate the cardiac wall through the sequence and calculate the quantity from the cardiac wall position or motion. Various machine learning is used for locating and tracking the cardiac wall, such as using a motion prior learned from training data for initially locating the cardiac wall and the motion prior, speckle tracking, boundary detection, and mass conservation cues for tracking with another machine learned classifier. Where the sequence extends over multiple cycles, the cycles are automatically divided for independent tracking of the cardiac wall. The cardiac wall from one cycle may be used to propagate to another cycle for initializing the tracking. Independent tracking in each cycle may reduce or avoid inaccuracies due to drift.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: June 18, 2019
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Yang Wang, Bogdan Georgescu, Helene C. Houle, Dorin Comaniciu
  • Patent number: 10297027
    Abstract: Anatomy, such as papillary muscle, is automatically detected (34) and/or detected in real-time. For automatic detection (34) of small anatomy, machine-learnt classification with spatial (32) and temporal (e.g., Markov) (34) constraints is used. For real-time detection, sparse machine-learnt detection (34) interleaved with optical flow tracking (38) is used.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: May 21, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Mihai Scutaru, Ingmar Voigt, Tommaso Mansi, Razvan Ionasec, Helene C. Houle, Anand Vinod Tatpati, Dorin Comaniciu, Bogdan Georgescu, Noha Youssry El-Zehiry
  • Publication number: 20190125295
    Abstract: For cardiac flow detection in echocardiography, by detecting one or more valves, sampling planes or flow regions spaced from the valve and/or based on multiple valves are identified. A confidence of the detection may be used to indicate confidence of calculated quantities and/or to place the sampling planes.
    Type: Application
    Filed: October 30, 2017
    Publication date: May 2, 2019
    Inventors: Huseyin Tek, Bogdan Georgescu, Tommaso Mansi, Frank Sauer, Dorin Comaniciu, Helene C. Houle, Ingmar Voigt
  • Patent number: 10271817
    Abstract: A regurgitant orifice of a valve is detected. The valve is detected from ultrasound data. An anatomical model of the valve is fit to the ultrasound data. This anatomical model may be used in various ways to assist in valvular assessment. The model may define anatomical locations about which data is sampled for quantification. The model may assist in detection of the regurgitant orifice using both B-mode and color Doppler flow data with visualization without the jet. Segmentation of a regurgitant jet for the orifice may be constrained by the model. Dynamic information may be determined based on the modeling of the valve over time.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: April 30, 2019
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Ingmar Voigt, Tommaso Mansi, Bogdan Georgescu, Helene C Houle, Dorin Comaniciu, Codruta-Xenia Ene, Mihai Scutaru
  • Publication number: 20190099159
    Abstract: For measurement point determination in imaging with a medical scanner, the user selects a location on the image. Rather than using that location, an “intended” location corresponding to a local boundary or landmark represented in the image is identified. The medical scanner uses the simple user interface to more exactly determine points for measurement. One or more rays are cast from the user selected location. The actual location is found by examining data along the ray or rays. For 2D imaging, the rays are cast in the plane. For 3D imaging, the ray is cast along a view direction to find the depth. The intensities along the ray or around the ray are used to find the actual location, such as by application of a machine-learnt classifier to the limited region around the ray or by finding intensities along the ray relative to a threshold.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 4, 2019
    Inventors: Ingmar Voigt, Tommaso Mansi, Helene C. Houle
  • Patent number: 9931790
    Abstract: A method and system for transcatheter aortic valve implantation (TAVI) planning is disclosed. An anatomical surface model of the aortic valve is estimated from medical image data of a patient. Calcified lesions within the aortic valve are segmented in the medical image data. A combined volumetric model of the aortic valve and calcified lesions is generated. A 3D printed model of the heart valve and calcified lesions is created using a 3D printer. Different implant device types and sizes can be placed into the 3D printed model of the aortic valve and calcified lesions to select an implant device type and size for the patient for a TAVI procedure. The method can be similarly applied to other heart valves for any type of heart valve intervention planning.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: April 3, 2018
    Assignee: Siemens Healthcare GmbH
    Inventors: Sasa Grbic, Razvan Ionasec, Tommaso Mansi, Ingmar Voigt, Dominik Neumann, Julian Krebs, Chris Schwemmer, Max Schoebinger, Helene C. Houle, Dorin Comaniciu, Joel Mancina
  • Publication number: 20170116748
    Abstract: Anatomy, such as papillary muscle, is automatically detected (34) and/or detected in real-time. For automatic detection (34) of small anatomy, machine-learnt classification with spatial (32) and temporal (e.g., Markov) (34) constraints is used. For real-time detection, sparse machine-learnt detection (34) interleaved with optical flow tracking (38) is used.
    Type: Application
    Filed: June 8, 2015
    Publication date: April 27, 2017
    Inventors: Mihai Scutaru, Ingmar Voigt, Tommaso Mansi, Razvan Ionasec, Helene C. Houle, Anand Vinod Tatpati, Dorin Comaniciu
  • Publication number: 20160303804
    Abstract: A method and system for transcatheter aortic valve implantation (TAVI) planning is disclosed. An anatomical surface model of the aortic valve is estimated from medical image data of a patient. Calcified lesions within the aortic valve are segmented in the medical image data. A combined volumetric model of the aortic valve and calcified lesions is generated. A 3D printed model of the heart valve and calcified lesions is created using a 3D printer. Different implant device types and sizes can be placed into the 3D printed model of the aortic valve and calcified lesions to select an implant device type and size for the patient for a TAVI procedure. The method can be similarly applied to other heart valves for any type of heart valve intervention planning.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 20, 2016
    Inventors: Sasa Grbic, Razvan Ionasec, Tommaso Mansi, Ingmar Voigt, Dominik Neumann, Julian Krebs, Chris Schwemmer, Max Schoebinger, Helene C. Houle, Dorin Comaniciu, Joel Mancina
  • Publication number: 20160220311
    Abstract: A processor acquires image data from a medical imaging system. The processor generates a first model from the image data. The processor generates a computational model which includes cardiac electrophysiology and cardiac mechanics estimated from the first model. The processor performs tests on the computational model to determine outcomes for therapies. The processor overlays the outcome on an interventional image. Using interventional imaging, the first heart model may be updated/overlaid during the therapy to visualize its effect on a patient's heart.
    Type: Application
    Filed: September 4, 2015
    Publication date: August 4, 2016
    Inventors: Tommaso Mansi, Tiziano Passerini, Bogdan Georgescu, Ali Kamen, Helene C. Houle, Alexander Brost, Dorin Comaniciu
  • Patent number: 9245091
    Abstract: Physically-constrained modeling of a heart is provided. Patient-specific data may be used to estimate heart anatomy locations. A model is applied to the data for estimation. For increased accuracy of estimation, the biomechanics of the heart, such as the valve, may be used to constrain the estimation. By applying a dynamic system between estimated anatomy locations of different times, the locations may be deformed or refined. The modeled heart and/or valve may be used to estimate hemodynamics. The resulting velocities or other motion information may be used to emulate ultrasound Doppler imaging for comparing with acquired ultrasound Doppler data. The comparison may validate the modeling.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: January 26, 2016
    Assignees: Siemens Aktiengesellschaft, Siemens Corporation, Siemens Medical Solutions USA, Inc.
    Inventors: Ingmar Voigt, Razvan Ioan Ionasec, Bogdan Georgescu, Tommaso Mansi, Dorin Comaniciu, Helene C. Houle, Etienne Assoumou Mengue
  • Publication number: 20150366532
    Abstract: A regurgitant orifice of a valve is detected. The valve is detected from ultrasound data. An anatomical model of the valve is fit to the ultrasound data. This anatomical model may be used in various ways to assist in valvular assessment. The model may define anatomical locations about which data is sampled for quantification. The model may assist in detection of the regurgitant orifice using both B-mode and color Doppler flow data with visualization without the jet. Segmentation of a regurgitant jet for the orifice may be constrained by the model. Dynamic information may be determined based on the modeling of the valve over time.
    Type: Application
    Filed: June 10, 2015
    Publication date: December 24, 2015
    Inventors: Ingmar Voigt, Tommaso Mansi, Bogdan Georgescu, Helene C Houle, Dorin Comaniciu, Codruta-Xenia Ene, Mihai Scutaru
  • Patent number: 8771189
    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: Grant
    Filed: February 8, 2010
    Date of Patent: July 8, 2014
    Assignees: Siemens Medical Solutions USA, Inc., Siemens Corporation, Siemens Aktiengesellschaft
    Inventors: Razvan Ioan Ionasec, Ingmar Voigt, Yang Wang, Bogdan Georgescu, Helene C. Houle, Dorin Comaniciu, Fernando Vega-Higuera
  • Publication number: 20120232853
    Abstract: Physically-constrained modeling of a heart is provided. Patient-specific data may be used to estimate heart anatomy locations. A model is applied to the data for estimation. For increased accuracy of estimation, the biomechanics of the heart, such as the valve, may be used to constrain the estimation. By applying a dynamic system between estimated anatomy locations of different times, the locations may be deformed or refined. The modeled heart and/or valve may be used to estimate hemodynamics. The resulting velocities or other motion information may be used to emulate ultrasound Doppler imaging for comparing with acquired ultrasound Doppler data. The comparison may validate the modeling.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 13, 2012
    Applicants: Siemens Corporation, Siemens Medical Solutions USA, Inc., Siemens Aktiengesellschaft
    Inventors: Ingmar Voigt, Razvan Ioan Ionasec, Bogdan Georgescu, Tommaso Mansi, Dorin Comaniciu, Helene C. Houle, Etienne Assoumou Mengue
  • Patent number: 8211024
    Abstract: Flow information (e.g., velocity and acceleration) and/or pressure gradient information are determined with ultrasound. Both velocity and acceleration are simultaneously estimated using a model and least squares analysis. Anti-aliasing of velocity information may be provided using the model and least squares analysis. Pressure gradient is calculated from velocity information automatically, more likely providing consistent measurements. Consistency may be increased further by automatically positioning a region of interest in either a multidimensional spatial image or a spatial-temporal image. A parametric image of pressure gradient for each spatial location within the image is generated as well as a delta pressure curve. Any single one or combinations of two or more of the features described above may be used.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: July 3, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Helene C. Houle, Liexiang Fan, Matthew Holladay, King Yuen Wong, Wayne J. Gueck