Patents by Inventor Dominik Paul

Dominik Paul 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: 20220130080
    Abstract: A method is for acquiring a magnetic resonance (MR) image dataset of at least two slices via simultaneous multi-slice excitation. An embodiment of the method includes executing an MR imaging sequence using multi-band radio-frequency excitation pulses to excite the at least two slices simultaneously in at least two repetitions, the repetitions each being executed according to a phase modulation scheme in which each of the simultaneously excited slices is assigned a phase and the phase of at least one of the simultaneously excited slices is changed from one repetition to the next, thereby acquiring an MR dataset of a collapsed image in each repetition; performing a spatial registration between the at least two collapsed images and performing motion correction on at least one of the MR datasets of the collapsed images; and reconstructing MR images of the at least two slices from the corrected MR datasets of the collapsed images.
    Type: Application
    Filed: October 14, 2021
    Publication date: April 28, 2022
    Applicant: Siemens Healthcare GmbH
    Inventors: Mario ZELLER, Dominik PAUL, Wei LIU
  • Patent number: 11300641
    Abstract: A system and method for performing a measuring sequence by a magnetic resonance device for examining a patient is provided. The performance of the measuring sequence includes a processing of segments. If at least one determined patient load value exceeds a predetermined limit value, the processing of the measuring sequence for the time frame of exceeding the patient load value is interrupted. The determination of the at least one patient load value includes a detection of a movement of a patient into a changed pose, an adjustment of at least one following segment to the changed pose of the patient, and a determination of at least one patient load value for the adjusted at least one following segment.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: April 12, 2022
    Assignee: Siemens Healthcare GmbH
    Inventor: Dominik Paul
  • Publication number: 20220099773
    Abstract: A method for determining a saturation pulse for suppressing signals from unwanted areas in the context of acquiring measurement data from a target volume of an object under examination by means of a magnetic resonance system, includes: loading the characteristics of the unwanted areas from which signals are to be suppressed; determining area saturation pulses for signal suppression in each of the unwanted areas; and determining a saturation pulse for signal suppression in all the unwanted areas on the basis of the area saturation pulses determined.
    Type: Application
    Filed: September 27, 2021
    Publication date: March 31, 2022
    Applicant: Siemens Healthcare GmbH
    Inventors: Dominik Paul, Mario Zeller
  • Publication number: 20220099777
    Abstract: A method a for acquiring magnetic resonance data of an object under examination by means of a magnetic resonance system comprises: in an excitation phase, applying an RF excitation pulse; in a wait phase following the excitation phase, applying at least one first RF refocusing pulse after the applied RF excitation pulse according to a first echo spacing; in an acquisition phase following the wait phase, applying at least two further RF refocusing pulses to generate echo signals according to a second echo spacing, wherein the second echo spacing is smaller than the first echo spacing; and reading out the echo signals generated in the acquisition phase as magnetic resonance data from which image data can be reconstructed, wherein in the wait phase at least two spoiler gradients are switched in the readout direction.
    Type: Application
    Filed: September 27, 2021
    Publication date: March 31, 2022
    Applicant: Siemens Healthcare GmbH
    Inventors: Nadine Dispenza, Dominik Paul, Mario Zeller
  • Patent number: 11287502
    Abstract: Techniques are disclosed for recording magnetic resonance data of an examination object with a magnetic resonance device. A magnetic resonance sequence is used to record the magnetic resonance data from at least two slices of a slice stack, and at least two temporally separate radio frequency pulses are output within an excitation time frame. A slice thickness of the slices, which is increased by an enlargement factor that is greater than one compared with a nominal slice thickness, is used for at least one, but not all, of the radio frequency pulses. The enlargement factor is selected as a function of a distance value describing the distance between two adjacent slices of the slice stack, such that the increased slice thickness does not result in the resulting excitation region of a slice extending into the adjacent slice.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: March 29, 2022
    Assignee: Siemens Healthcare GmbH
    Inventors: Flavio Carinci, Dominik Paul, Mario Zeller
  • Patent number: 11287225
    Abstract: A rapid self-orienting personal defense device is provided having an elongate body, a stream channel, an orientation guide, a contact feature, and a contoured grip. The body defines an elongate storage cavity therein for retaining a replaceable repellant storage container. The orientation guide has a tip portion defining an index finger locator surface facing downward when gripped by the user for readily identifying to the user an intended grip location and orientation based on contact between the index finger with the locator surface. The contact feature can be attached to the tip portion of the orientation guide for providing defensive contact with an attacker and collecting a DNA sample during defensive contact. The contoured grip can have a grip diameter corresponding with the user. The orientation guide, locator surface and contoured grip can provide rapid self-orientation of the device when grabbed by the user.
    Type: Grant
    Filed: January 2, 2021
    Date of Patent: March 29, 2022
    Inventors: Dominik Paul Bogacz, James T Sorgani
  • Publication number: 20220091209
    Abstract: A method and an apparatus are provided for determining a valid parameter dataset for a protocol for an MRT examination by a MRT facility. The apparatus includes an input facility for importing a set of parameters to be used for performing the MRT examination; an interface for capturing at least one system value which represents an availability of a system resource for the MRT examination; a processor for calculating system resources required to perform the MRT examination using the imported parameters, and for executing a prepare function, which checks whether, with regard to the captured system values, the imported parameters are implementable in the MRT examination. If the parameters are not implementable, the processor is configured to calculate a modifying function for modifying the imported parameters based on the current system values and the required system resources and modify the imported parameters in accordance with the calculated modifying function.
    Type: Application
    Filed: September 8, 2021
    Publication date: March 24, 2022
    Inventors: Dominik Paul, Mario Zeller, Flavio Carinci
  • Patent number: 11262425
    Abstract: Techniques are disclosed for acquiring magnetic resonance data of an object with a magnetic resonance imaging apparatus. A slice group is imaged whose slices define a contiguous imaging volume and which contains a first number of slices. In a number of concatenations, the magnetic resonance data for subgroups of the slices, each containing a respective second number of slices depending on the first number of concatenations, are acquired, and shimming is performed to increase field homogeneity in the imaging volume. To define the subgroups, the imaging volume is subdivided into at least two disjoint contiguous sub-volumes, and at least two subgroups are defined for each sub-volume, each subgroup only containing non-adjacent slices in the sub-volume. During acquisition of the magnetic resonance data of each subgroup, shimming is at least restricted to the respective sub-volume.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: March 1, 2022
    Assignee: Siemens Healthcare GmbH
    Inventors: Dominik Paul, Flavio Carinci, Wilhelm Horger, Mario Zeller
  • Publication number: 20220050159
    Abstract: Acquisition of MR data with a compressed sensing technique in a volume section includes ascertaining an extent of magnetic field distortion within the volume section. A first gradient along a first direction is switched. An RF excitation pulse is radiated for selective excitation of a slice in the volume section while the first gradient is switched. The MR data is acquired in a volume of the volume section that is composed of the slice, a partial volume above the slice, and a partial volume below the slice by executing the following multiple times: switching a first phase-encoding gradient along a second direction; switching a second phase-encoding gradient along the first direction; and reading out the MR data in a k-space line while a readout gradient is switched along a readout direction. A set of k-space lines to be read out for the volume is determined in dependence on the extent.
    Type: Application
    Filed: August 10, 2021
    Publication date: February 17, 2022
    Inventors: Dominik Paul, Flavio Carinci, Mario Zeller
  • Publication number: 20220043092
    Abstract: A correction method for reducing temperature-related deviations in a gradient response of an MR pulse sequence in MR imaging is provided. An MR pulse sequence that includes at least one nominal test gradient is run. A gradient response to the at least one nominal test gradient is repeatedly acquired by a magnetic field measurement in an examination region. A gradient system transfer function is determined based on the gradient response. A corrected MR pulse sequence is determined based on the gradient system transfer function and of the at least one nominal test gradient.
    Type: Application
    Filed: August 4, 2021
    Publication date: February 10, 2022
    Inventors: Manuel Stich, Dominik Paul, Mario Zeller, Nadine Dispenza
  • Publication number: 20220026513
    Abstract: In a method for recording measurement data, frequency-dependent parameters characterizing a gradient unit are loaded, a k-space trajectory planned for a MR measurement and having at least one frequency component is loaded, MR measurement data is acquired based on the planned k-space trajectory and reconstructing image data from the MR measurement data, wherein the planned k-space trajectory is corrected based on the at least one frequency component of the planned k-space trajectory and the frequency-dependent parameters, and an electronic signal representing the reconstructed image data is provided as an output of the MR system. The reconstructed image data may be stored and/or displayed. Advantageously, the correction can be employed flexibly for k-space trajectories with different frequency components.
    Type: Application
    Filed: July 23, 2021
    Publication date: January 27, 2022
    Applicant: Siemens Healthcare GmbH
    Inventors: Adam Kettinger, Dominik Paul, Mario Zeller
  • Patent number: 11231477
    Abstract: Techniques are disclosed relating to the generation of a magnetic resonance (MR) image of a predetermined portion of a volume of an examination object. MR data of the portion may be acquired using echo trains in a first step and in a second step, with each of the echo trains acquiring MR data of a plurality of k-space lines. The plurality of k-space lines extend parallel to one another and perpendicular to a common plane such that per k-space line, one intersection point within a plane results. The MR image is then reconstructed using the acquired MR data.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: January 25, 2022
    Assignee: Siemens Healthcare GmbH
    Inventors: Christoph Forman, Dominik Paul, Flavio Carinci
  • Patent number: 11226388
    Abstract: In a method for detecting MR signals of an object in an MR scanner, in which the MR signals of the object are detected with receiving channels at the same time using a parallel imaging technique, where the MR signals are spin-echoes generated with a spin-echo based imaging sequence, a first magnetic field gradient (MFG) is applied in a slice selection direction (SSD) while applying an RF excitation pulse of the spin echo based imaging sequence, the first MFG having a first polarity during the application of the RF excitation pulse, a second MFG is applied in the SSD while applying at least a first RF refocusing pulse of the spin echo based imaging sequence, the second magnetic field gradient has a second polarity opposite to the first polarity, and the MR signals of the spin echo are detected to generate an MR image based on the detected MR signals.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: January 18, 2022
    Assignee: Siemens Healthcare GmbH
    Inventors: Flavio Carinci, Dominik Paul, Mario Zeller
  • Patent number: 11223164
    Abstract: The invention relates to a plug-in module for a sensor (32) comprising a sleeve-like housing (3) in which a sensor element (27), a carrier board (16) carrying an electronic circuit and a plug-in unit (2) are positioned. In a plug-in module which can be used equally for sensors of different sizes, an outer diameter (5) of the plug-in unit (2) approximately corresponds to a smallest inner diameter (8) of the sleeve-like housing (3), wherein a coding sleeve (4) is inserted between the plug-in unit (2) and the sleeve-like housing (3).
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: January 11, 2022
    Assignee: SICK AG
    Inventors: Frank Gutmann, Wolfgang Marschner, Dominik Paul
  • Publication number: 20210350592
    Abstract: A method serves for MR-based reconstruction of images of a patient. Whether a value of a movement of the patient in at least one motion direction during an MR scan exceeds a respective threshold value is monitored. If this is not the case, an image reconstruction is performed by a Wave-CAIPI method on the basis of identical calibrated PSF subfunctions for all k-space lines. When this is the case, a number of bins are provided that correspond to sequential value ranges of the patient movement in at least one motion direction, the k-space lines are assigned to the bins based on a movement value determined during their respective acquisition, a calibration of PSF subfunctions is performed for at least two bins on the basis of the k-space lines assigned to said bins, and an image reconstruction is performed by a Wave-CAIPI method in such a way that the PSF subfunctions associated with the assigned bins are used for the respective k-space lines.
    Type: Application
    Filed: April 26, 2021
    Publication date: November 11, 2021
    Inventors: Nadine Dispenza, Dominik Paul, Mario Zeller
  • Publication number: 20210341558
    Abstract: A computer-implemented method is provided for generating correction information for correcting mismatches in magnetic resonance measurements. Magnetic resonance data is received, wherein a generation of the magnetic resonance data includes several partial measurements by a magnetic resonance device. During each partial measurement, a k-space region is sampled at least partially, wherein the k-space regions of different partial measurements differ at least partially in their extent in the readout direction, and wherein the extent in the readout direction depends on prephasing gradients and readout gradients generated by the magnetic resonance device during the partial measurements. A trained function of a machine learning algorithm is applied to the received magnetic resonance data, wherein correction information for correcting a mismatch of the prephasing gradients and readout gradients is generated and output.
    Type: Application
    Filed: April 9, 2021
    Publication date: November 4, 2021
    Inventors: Dominik Paul, Mario Zeller
  • Patent number: 11156687
    Abstract: For improving image quality in MRI, a method for magnetic of an object is provided that includes obtaining MRI data during at least a first and a second acquisition step. Each acquisition step includes at least two data acquisition periods. A movement of the object is monitored by a camera system during the acquisition steps. Data obtained during the acquisition periods is adjusted based on the monitoring. Data obtained during a first reference period of the first acquisition step is compared to data obtained during a second reference period of the second acquisition step. The obtained or adjusted data is corrected based on a result of the comparison.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: October 26, 2021
    Assignee: Siemens Healthcare GmbH
    Inventors: Dominik Paul, Raphael Schwarz
  • Patent number: 11119174
    Abstract: A storage medium, a magnetic resonance apparatus, and a method for obtaining a correction factor to balance a mismatch between gradient moments are disclosed herein. The method includes providing a magnetic resonance raw dataset, the generation of which includes acquiring the k-space of the magnetic resonance raw dataset in several partial measurements, wherein in each partial measurement, several k-space lines are at least partially sampled by setting a given set of acquisition parameters, applying at least one radio frequency excitation pulse, applying a first gradient in a predetermined direction, applying a second gradient in the predetermined direction, and reading out the magnetic resonance signals.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: September 14, 2021
    Assignee: Siemens Healthcare GmbH
    Inventors: Dominik Paul, Mario Zeller
  • Patent number: 11112480
    Abstract: A method is provided for generating a signal-to-noise improved magnetic resonance (MR) image of an object under examination in an MR system using a compressed sensing technology. The method includes determining a first MR signal data set of the object under examination in which a corresponding k-space is randomly subsampled; determining a location dependent sensitivity map for each of at least one receiving coil used to detect MR signals of the first MR signal data set in the location where the object under examination is located; and determining the MR image using an optimization process of the compressed sensing technology in which a location dependent regularization parameter is used, wherein the location dependent regularization parameter is determined based on the location dependent sensitivity map.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: September 7, 2021
    Assignee: Siemens Healthcare GmbH
    Inventors: Ralf Kartäusch, Dominik Paul, Mario Zeller
  • Patent number: D950001
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: April 26, 2022
    Inventors: Dominik Paul Bogacz, James T Sorgani