Patents by Inventor DAVID GRODZKI

DAVID GRODZKI 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).

  • Magnetic resonance method and apparatus for producing an image data set for display
    Patent number: 10324151
    Abstract: In a method for generating an image data set for display, magnetic resonance data of a patient are provided to a computer that contains parameters of the protons underlying the measured magnetic resonance signal in measured voxels. The image data set is generated dependent on at least one user specification, taking into consideration at least two parameters per voxel.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: June 18, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: David Grodzki
  • Method and magnetic resonance apparatus for acquisition of MR data of a two-dimensional volume segment
    Patent number: 10317487
    Abstract: In a method for the acquisition of magnetic resonance (MR) data relating to a pre-determined two-dimensional volume segment of an examination object with an MR apparatus, a randomized determination of points to be sampled in the raw data space is made, such that the raw data space is undersampled when only the determined points to be sampled are then sampled. MR data relating to the specified points to be sampled are acquired by operation of the MR apparatus. Alternatively, a determination of points to be sampled in the raw data space is made using radial or spiral trajectories in k-space that begin in the center k-space. Each specified point to be sampled is then moved to an FFT grid point, and MR data relating to the determined points to be sampled is implemented by operation of the MR apparatus.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: June 11, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: David Grodzki, Bjoern Heismann
  • Method and magnetic resonance apparatus for determining a minimized echo time
    Patent number: 10317486
    Abstract: In a method for determining a minimum possible echo time for a radio-frequency coil used in a magnetic resonance scanner, magnetic resonance signals are acquired with the radio-frequency coil in a magnetic resonance measurement of a free induction decay at fixed time intervals, the minimum possible echo time being determined by evaluating the time series of magnetic resonance signals as the instant from which an exponential signal decay was measured.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: June 11, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: David Grodzki
  • Method and apparatus control and adjustment of pulse optimization of a magnetic resonance system
    Patent number: 10295634
    Abstract: In an apparatus and method for pulse optimization adjustment a checking is made as to whether the optimization time resulting from a calculation time for pulse optimization of a pulse sequence section for a modifiable time interval at a predefined gradient grid density, and an associated implementation time, exceeds a real time resulting from the time interval and a buffer time. The gradient grid density for pulse optimization is reduced by a factor f if the optimization time exceeds the real time.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: May 21, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: David Grodzki, Stephan Stoecker
  • Reconstruction of an image on the basis of one or more imaging modalities
    Patent number: 10297023
    Abstract: The embodiments relate to a reconstructing an image of an examination object, a medical imaging apparatus, and a computer program product where a first image data record is acquired with a first imaging modality and at least one further image data record of at least one further imaging modality is provided. At least one first image is reconstructed on the basis of the first image data record using the at least one further image data record.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: May 21, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: David Grodzki, Arne Hengerer, Michael Kaus, Elena Nioutsikou, Sebastian Schmidt
  • Method and apparatus for optimizing a magnetic resonance control sequence
    Patent number: 10281546
    Abstract: In magnetic resonance tomography apparatus and operating a method, a magnetic resonance control sequence with a dynamic magnetic field gradient is optimized in computer, based on an image basis and a gradient basis. A basis transformation of the dynamic magnetic field gradient from the image basis into the gradient basis is implemented, and the dynamic magnetic field gradient in the gradient basis is optimized and is emitted from the computer in an optimized magnetic resonance control sequence.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: May 7, 2019
    Assignee: Siemens Healthcare GmbH
    Inventor: David Grodzki
  • Method and apparatus for recording a magnetic resonance dataset of at least one foreign body in a patient
    Patent number: 10267878
    Abstract: In a method and apparatus for recording a magnetic resonance dataset of at least one foreign body in a target region of a patient, a magnetic resonance sequence having an ultra-short echo time, which is less than 500 ?s is used for recording the magnetic resonance data.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: April 23, 2019
    Assignees: Siemens Aktiengesellschaft, The John Hopkins University
    Inventors: Jan Fritz, David Grodzki, Heiko Meyer, Mathias Nittka
  • Method and apparatus for magnetic resonance imaging
    Patent number: 10267885
    Abstract: To enable improved magnetic resonance imaging in the vicinity of an interference object that produces a magnetic interference field in an examination region, in a method and apparatus for magnetic resonance imaging of the examination region magnetic resonance raw data are acquired from the examination region by execution of a magnetic resonance sequence having multiple repetition intervals and refocusing of spins in the examination region at the end of each repetition interval repetition intervals. During at least part of the duration of the acquisition of the magnetic resonance raw data, a magnetic compensation gradient is activated that is opposed to the magnetic interference field.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: April 23, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: David Grodzki
  • METHOD AND MAGNETIC RESONANCE APPARATUS FOR MONITORING AN INTERVENTIONAL PROCEDURE CONDUCTED WITH AN INTERVENTION TOOL
    Publication number: 20190113589
    Abstract: In a method and magnetic resonance (MR) apparatus for monitoring an interventional procedure with an intervention tool in a vessel of an examination subject, the intervention tool is moved in an insertion direction in the vessel and the position of a front end of the intervention tool in the insertion direction is determined. A first volume segment is determined dependent on the position and the flow direction of a fluid within the vessel. An RF saturation pulse is radiated into the first volume segment that saturates nuclear spins in the fluid within the first volume segment. MR data are acquired in a second volume segment, which contains the front end of the intervention tool and a region in front of the intervention tool in the insertion direction. An MR image is generated from the acquired MR data.
    Type: Application
    Filed: October 17, 2018
    Publication date: April 18, 2019
    Applicant: Siemens Healthcare GmbH
    Inventors: David Grodzki, Rainer Schneider
  • Method and magnetic resonance apparatus for determining diffusion-weighted image data
    Patent number: 10261156
    Abstract: In a method and magnetic resonance (MR) apparatus for determining diffusion-weighted image data, first raw data are acquired with a first diffusion weighting, and the first raw data are assigned to a first k-space matrix. Second raw data are acquired with a second diffusion weighting, and the second raw data are assigned to a second k-space matrix. The first k-space matrix and the second k-space matrix are different from one another at at least one position. The diffusion-weighted image data are determined in a processor based on the first raw data and the second raw data.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: April 16, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Andre de Oliveira, David Grodzki
  • Magnetic resonance device with a switching matrix unit and a method for pulse sequence optimization
    Patent number: 10261147
    Abstract: A magnetic resonance device includes at least one gradient amplifier and at least one gradient coil. The magnetic resonance device also includes a switching matrix unit that is embodied flexibly to connect the at least one gradient amplifier to the at least one gradient coil. A preliminary pulse sequence for the magnetic resonance device provides that in the optimized pulse sequence, a sufficient number of gradient amplifiers is available at any point for operating the gradient coils used.
    Type: Grant
    Filed: February 14, 2016
    Date of Patent: April 16, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stephan Biber, David Grodzki
  • Method and magnetic resonance apparatus for determining a pulse sequence
    Patent number: 10254366
    Abstract: In a method for determining a pulse sequence composed of multiple consecutive pulse sequence segments and multiple pre-pulses, the number of consecutive pulse sequence segments between two pre-pulses is determined on the basis of a randomizing algorithm. A pulse sequence determining device determines a pulse sequence for a magnetic resonance installation, device having an input interface for entering control protocol parameter values, a pulse sequence determining unit for determining the pulse sequence on the basis of the control protocol that has been entered, and a pre-pulse arrangement unit, which establishes the position of the pre-pulses between the pulse sequence segments in a randomly distributed manner.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: April 9, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventor: David Grodzki
  • Optimizing a slice orientation
    Patent number: 10254364
    Abstract: A method for optimizing a slice orientation for an examination using a magnetic resonance machine is provided. One or more device limitation of the magnetic resonance machine is provided. The device limitation includes, for at least one of the one or more gradient axes, a maximum gradient strength and/or a maximum gradient slew rate. At least one measurement parameter value of the examination and an original slice orientation are also provided. Rotational-angle information is determined from device limitations, measurement parameter values, and the original slice orientation. The rotational-angle information is used to optimize the original slice orientation, and the magnetic resonance machine captures measurement data on the basis of the optimized slice orientation.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: April 9, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: David Grodzki, Thorsten Speckner
  • METHOD FOR CLASSIFYING A RISK FOR THROMBUS FORMATION IN AN ORGAN, SYSTEM FOR CLASSIFYING A RISK FOR THROMBUS FORMATION IN AN ORGAN, A COMPUTER PROGRAM PRODUCT AND A COMPUTER READABLE MEDIUM
    Publication number: 20190088368
    Abstract: A method is for classifying a risk for thrombus formation in an organ, in particular during an atrial fibrillation. In an embodiment, the method includes providing a medical image data set via a medical imaging device; calculating a flow parameter based on the medical image data set; assigning a risk parameter based on the flow parameter calculated; and—providing the risk parameter.
    Type: Application
    Filed: September 12, 2018
    Publication date: March 21, 2019
    Applicant: Siemens Healthcare GmbH
    Inventors: David GRODZKI, Axel HEITLAND, Philipp HOELZER, Rainer KUTH, Sebastian SCHMIDT
  • Method for planning irradiation of a patient for radiation therapy
    Patent number: 10226644
    Abstract: In a method and system for planning irradiation of a patient for therapy, a first time series acquired from computed tomography scan data of the patient is provided to a processor, as is a second time series acquired from magnetic resonance scan data of the patient. A first parameter that characterizes the first time series is acquired, as is a second parameter that characterizes the second time series. The first time series and the second time series are combined in the processor using the first parameter and the second parameter. An irradiation plan is calculated in the processor using the combined first time series and second time series.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: March 12, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Martin Requardt, Bernd Schweizer, David Grodzki, Arne Hengerer, Michael Kaus, Elena Nioutsikou, Sebastian Schmidt
  • Preparation of a scan protocol of a medical imaging apparatus
    Patent number: 10204426
    Abstract: Preparation of a scan protocol of a medical imaging apparatus is provided. A first parameter set that includes one or more first scan parameters is provided. One or more first scan parameter values that are assigned to the one or more first scan parameters are set. Based on these set one or more first scan parameter values, a second parameter set that includes one or more second scan parameters is determined. The second parameter set is provided, and one or more second scan parameter values that are assigned to the one or more second scan parameters are set. Based on the one or more first scan parameter values and/or the one or more second scan parameter values, a scan protocol is prepared. Based on the scan protocol prepared, scan data is acquired by the medical imaging apparatus.
    Type: Grant
    Filed: July 23, 2016
    Date of Patent: February 12, 2019
    Assignee: Siemens Healthcare GmbH
    Inventor: David Grodzki
  • Method and magnetic resonance apparatus for accelerate acquisition of magnetic resonance data of an examination object by undersampling the acquired magnetic resonance data
    Patent number: 10203384
    Abstract: In a method and apparatus for recording magnetic resonance data of an object to be examined, two-dimensional k-space is scanned along lines extending in a readout direction within an acquisition trajectory. Undersampling is carried out along at least some of the lines and, during an acquisition section proceeding through the entirety of k-space in the readout direction, multiple jumps occur as a result of gradient pulses in the phase coding direction perpendicular to the readout direction. These jumps can occur between adjacent lines.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: February 12, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: David Grodzki, Bjoern Heismann
  • AUTOMATIC DETECTION AND SETTING OF MAGNETIC RESONANCE PROTOCOLS BASED ON READ-IN IMAGE DATA
    Publication number: 20190041478
    Abstract: In a method and apparatus for determining measurement protocol parameters of a magnetic resonance (MR) image, a first MR image exhibiting first contrast properties, is read into a computer and at least one first contrast ratio is determined in the computer from the first contrast properties. The computer then determines the measurement protocol parameters dependent on the at least one first contrast ratio, in order to generate a second MR image exhibiting second contrast properties such that the second contrast properties approximate, as closely as possible, to the first contrast properties. The measurement protocol parameters are presented as an output from the computer.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 7, 2019
    Applicant: Siemens Healthcare GmbH
    Inventors: David Grodzki, Donald Hardie, Katharina Hesels, Lars Lauer, Edgar Mueller
  • METHOD AND MAGNETIC RESONANCE APPARATUS FOR SYNCHRONOUS IMAGING AND RADIATION THERAPY
    Publication number: 20190021600
    Abstract: In a method for synchronous magnetic resonance (MR) imaging and radiation therapy using a combined system having a radiation apparatus and an MR imaging apparatus, wherein the system is designed to record MR signals of a subject during irradiation of the subject, a three-dimensional MR volume data set of the subject is acquired that contains a target volume for the irradiation, the location of a central beam of the radiation therapy apparatus relative to the subject, is continuously determined, and a second MR image data set is determined, which is positioned essentially perpendicular to the central beam. If the location of the central beam changes, a correspondingly changed second MR image data set is determined perpendicular to the central beam.
    Type: Application
    Filed: July 20, 2018
    Publication date: January 24, 2019
    Applicant: Siemens Healthcare GmbH
    Inventors: David Grodzki, Arne Hengerer, Sebastian Schmidt
  • Noise reduction during selective MR excitation
    Patent number: 10185007
    Abstract: In a method and magnetic resonance apparatus for creating an optimizing pulse sequence for selective RF excitation in the magnetic resonance apparatus, the pulse sequence has an excitation event block, which has an RF pulse and a selection gradient. Nuclear spins are excited in a predefined volume section in a predetermined manner by this excitation event block, which is designed to so that the spins inside the volume section have the same phase position after the excitation event block of the pulse sequence. The selection gradient does not have a polarity reversal.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: January 22, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: David Grodzki, Kuan Jin Lee, Stefan Popescu