Patents by Inventor Mario Zeller

Mario Zeller 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: 20250118414
    Abstract: A method for planning an MR examination on an MRT system may include: provision of geometric information about an examination area, provision of quality information, comprising information about a homogeneity of a main magnetic field and/or of gradient fields in the examination area and/or information about a distortion correction of corrected images of the examination area, specification of a number of homogeneity areas in the examination area, based on a determination of whether values of the quality information lie in a specified value range, determination of position data based on location and shape of the number of homogeneity areas and of the examination area, and output of the position data.
    Type: Application
    Filed: October 9, 2024
    Publication date: April 10, 2025
    Applicant: Siemens Healthineers AG
    Inventors: Mario Zeller, Dominik Paul
  • Publication number: 20250110195
    Abstract: A plurality of diffusion-weighted measurement datasets (including at least one initial and one further measurement dataset) are recorded following a common excitation and thus within a repetition time (TR) using segmented recording in the readout direction.
    Type: Application
    Filed: September 25, 2024
    Publication date: April 3, 2025
    Applicant: Siemens Healthineers AG
    Inventor: Mario Zeller
  • Publication number: 20250085374
    Abstract: The disclosure relates to gradient delay time correction of magnetic resonance data. For recording the magnetic resonance data, use is made of a three-dimensional recording technique with linear recording trajectories oriented in different readout directions of a readout plane that is perpendicular to a partition direction. Calibration data is recorded which covers a plurality of partitions in partition direction and which describes readout-direction-dependent shifts, caused by delay effects, of measurement points, e.g. sampled k-space sections in the k-space. Correction data is determined by evaluating the calibration data, and the magnetic resonance data is corrected on the basis of the correction data in order to compensate for the delay effects. The calibration data, which covers a coverage region in partition direction, is recorded in a resolved manner in partition direction, and at least one acceleration technique is applied in the partition direction during the recording of the calibration data.
    Type: Application
    Filed: September 12, 2024
    Publication date: March 13, 2025
    Applicant: Siemens Healthineers AG
    Inventors: Dominik Paul, Christian Meixner, Max Müller, Mario Zeller, Michael Köhler
  • Publication number: 20250085373
    Abstract: In method for MR imaging, an MR signal is acquired for each of a plurality of readout gradient pulses during a respective readout period and an MR image is generated on the basis thereof. A start time of the respective readout period relative to a start time of the respective readout gradient pulse is delayed by a delay duration which is selected randomly or pseudo-randomly from two or more predefined time values, and/or to generate the MR image, the acquired MR signals are processed, wherein the processing includes a frequency conversion based around a center frequency which is randomly or pseudo-randomly selected from two or more predetermined frequency values.
    Type: Application
    Filed: September 11, 2024
    Publication date: March 13, 2025
    Applicant: Siemens Healthineers AG
    Inventors: Mario Zeller, Nadine Dispenza, Dominik Paul, Christian Meixner
  • Patent number: 12248048
    Abstract: In method for MR imaging, an MR signal is acquired for each of a plurality of readout gradient pulses during a respective readout period and an MR image is generated on the basis thereof. A start time of the respective readout period relative to a start time of the respective readout gradient pulse is delayed by a delay duration which is selected randomly or pseudo-randomly from two or more predefined time values, and/or to generate the MR image, the acquired MR signals are processed, wherein the processing includes a frequency conversion based around a center frequency which is randomly or pseudo-randomly selected from two or more predetermined frequency values.
    Type: Grant
    Filed: September 11, 2024
    Date of Patent: March 11, 2025
    Assignee: Siemens Healthineers AG
    Inventors: Mario Zeller, Nadine Dispenza, Dominik Paul, Christian Meixner
  • Patent number: 12248044
    Abstract: Permitted gradient intensities are established to prevent an overloading of a gradient unit of a magnetic resonance system during a recording, with the magnetic resonance system, of scan data from an examination object situated in a scan volume of said magnetic resonance system.
    Type: Grant
    Filed: April 13, 2023
    Date of Patent: March 11, 2025
    Assignee: Siemens Healthineers AG
    Inventors: Dominik Paul, Mario Zeller, Flavio Carinci
  • Publication number: 20250076438
    Abstract: Measurement data of an examination object is recorded as collapsed from a plurality of slices of the examination object simultaneously while using an in-plane acceleration technique with an undersampled sampling pattern of the k-space. The measurement data is separated into single-slice measurement data by recording reference measurement data in at least two segments such that a complete set of reference measurement data is recorded. A sampling pattern is used within a segment during the recording of the reference measurement data that corresponds to an acceleration factor to which the sampling pattern of the collapsed measurement data corresponds. The collapsed measurement data is recorded, and the separation of the data is performed based upon on the reference measurement data recorded in at least one of the at least two segments. The separation of the collapsed measurement data is recorded into single-slice measurement data while using the created separation data.
    Type: Application
    Filed: August 28, 2024
    Publication date: March 6, 2025
    Applicant: Siemens Healthineers AG
    Inventor: Mario Zeller
  • Publication number: 20250076439
    Abstract: In a method for recording measurement data of an examination object, by a MR system using an echo planar recording technique that is segmented into at least two segments in the readout direction that also records navigator data (ND) for each of its segments, sampling patterns are changed during recordings of ND, so that the ND can be recorded overall such that reference data for determining further information for improving the recorded measurement data can be generated from the ND. The navigator phases of the recording technique segmented in the readout direction may be used to determine further information. The sampling patterns can be changed depending on the type of desired information and associated reference data. Separate measurements for reference measurements that are otherwise necessary for determining the desired information can be omitted, whereby a time period that is required for the entire measurement can be reduced.
    Type: Application
    Filed: August 30, 2024
    Publication date: March 6, 2025
    Applicant: Siemens Healthineers AG
    Inventor: Mario Zeller
  • Patent number: 12235339
    Abstract: In a method for determining a fat-reduced MR image, a first MR image is provided having, apart from the other tissue constituents, MR signals from only one of the two fat constituents, the first MR image is applied to a trained ANN, which was trained by first MR training data as the input data, the training data including, apart from the other tissue constituents, MR signals from only the one of the two fat constituents, and using second MR training data as a base knowledge, the second MR training data including, apart from the other tissue constituents, no MR signals from the two fat constituents; and an MR output image is determined from the trained ANN, to which the first MR image was applied, as a fat-reduced MR image, wherein the fat-reduced MR image includes, apart from the other tissue constituents, no MR signals from the two fat constituents.
    Type: Grant
    Filed: August 2, 2022
    Date of Patent: February 25, 2025
    Assignee: Siemens Healthineers AG
    Inventor: Mario Zeller
  • Publication number: 20250054206
    Abstract: In reconstruction, such as reconstruction in MR imaging, sub-sampled measurements from the scan are used in each iteration. By masking parts of the sub-sampled measurements (i.e., sub-sampling the acquired sub-sampled data) used in one or more iterations of reconstruction, banding is reduced or eliminated.
    Type: Application
    Filed: August 7, 2023
    Publication date: February 13, 2025
    Inventors: Mahmoud Mostapha, Mario Zeller, Marcel Dominik Nickel, Patrick Liebig, Mariappan S. Nadar
  • Patent number: 12222412
    Abstract: A method for preparing magnetic resonance imaging of an object under examination is described. A plurality of representative pulse sequence segments are generated, each of which is associated with a reference gradient amplitude of the gradient pulse having the highest stimulation potential of the representative pulse sequence segment, and the stimulation potential of which is representative of a group of partially different pulse sequences. For each of the representative pulse sequence segments, a maximum gradient slew rate is determined for which a permitted maximum value of the stimulation potential is not exceeded. One of the representative pulse sequence segments is determined and selected, for a measurement protocol to be planned for a magnetic resonance imaging to be performed, according to the gradient amplitude of the gradient pulse having the highest stimulation potential of a pulse sequence segment of the pulse sequence on which the measurement protocol is based.
    Type: Grant
    Filed: March 1, 2024
    Date of Patent: February 11, 2025
    Assignee: Siemens Healthineers AG
    Inventors: Thorsten Feiweier, Max Müller, Adam Kettinger, Mario Zeller, Gudrun Ruyters
  • Patent number: 12216189
    Abstract: A method for creating calibration data for processing accelerated measurement data of an object to be examined using a magnetic resonance system. The method includes recording measurement data sets using an acquisition acceleration method, recording calibration data sets, and determining processed measurement data sets from the accelerated measurement data sets using the calibration data sets so that effects of the acquisition acceleration method used are eliminated in the processed measurement data sets. The recording of the calibration data sets includes an application of at least one attenuation method for attenuating signals causing phase errors.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: February 4, 2025
    Assignee: Siemens Healthineers AG
    Inventors: Mario Zeller, Adam Kettinger
  • Patent number: 12204008
    Abstract: According to a method, first MR reference data and first MR imaging data are captured. Further MR imaging data is then captured. The capturing includes in each case generating at least one excitation pulse with a transmit coil of the magnetic resonance apparatus and irradiating the at least one excitation pulse into a patient receiving region, generating MR signals in a generation region using the at least one excitation pulse, and receiving the MR signals as MR data with a receive coil. A degree of difference that describes a difference between the generation region on capture of the first MR reference data and the generation region on capture of the further MR imaging data is determined. MR reference data is provided as a function of the degree of difference. An MR image is reconstructed based on the captured further MR imaging data and the provided further MR reference data.
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: January 21, 2025
    Assignee: Siemens Healthineers AG
    Inventors: Mario Zeller, Dominik Paul
  • Patent number: 12198232
    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: Grant
    Filed: October 14, 2021
    Date of Patent: January 14, 2025
    Assignee: SIEMENS HEALTHINEERS AG
    Inventors: Mario Zeller, Dominik Paul, Wei Liu
  • Patent number: 12189009
    Abstract: In a method for determining at least one test position for a test measurement to be recorded by means of a magnetic resonance system, a test image is recorded, and at least one test position is selected based on the test image. With methods for the compensation of effects of deviations of gradients actually generated during a readout duration from gradients planned for this readout time duration, the selection of test positions according to the disclosure based on a test image advantageously ensures that the test positions lie in a recording region favorable for the test measurement, e.g. also within an examination object to be examined in the test image. A higher image quality in MR images, which were generated using test measurements carried out at test positions positioned according to the disclosure, can therefore be achieved.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: January 7, 2025
    Assignee: Siemens Healthineers AG
    Inventors: Mario Zeller, Adam Kettinger
  • Patent number: 12189013
    Abstract: In a method for diffusion-weighted MR-imaging of an object, which undergoes a cyclic motion, a first sub-period type of the cyclic motion is predicted for a first acquisition timeframe, where the first sub-period type corresponds to one of two or more predefined characteristic types of sub-periods of the cyclic motion. A first amount of diffusion-weighting may be selected based on the first sub-period type. A first MR-acquisition may be carried out during the first acquisition timeframe, where a diffusion-weighting according to the first amount of diffusion-weighting is applied. An MR-image of the object is generated based on MR-data including a first MR-dataset obtained as a result of the first MR-acquisition.
    Type: Grant
    Filed: September 22, 2022
    Date of Patent: January 7, 2025
    Assignee: Siemens Healthineers AG
    Inventors: Mario Zeller, Adam Kettinger
  • Publication number: 20240385271
    Abstract: Method for separating measurement data of an examination object, which data was acquired in collapsed form simultaneously for slices using an EPI SMS technique, into measurement data of individual slices, first and second sets of reference measurement data for separating the measurement data are acquired for each of the slices using a GRE acquisition technique, wherein the reference measurement data in the first set is acquired during switching of readout gradients of a first polarity, and the reference measurement data in the second set is acquired during switching of readout gradients of a second polarity. Based on the two sets of reference measurement data, corresponding separate first calibration data is determined from the reference measurement data acquired using a GRE acquisition technique while switching readout gradients of a first polarity, and second calibration data is determined from the reference measurement data acquired while switching readout gradients of a second polarity.
    Type: Application
    Filed: May 15, 2024
    Publication date: November 21, 2024
    Applicant: Siemens Healthineers AG
    Inventors: Thorsten Feiweier, Mario Zeller, Adam Kettinger, Michael Köhler, Max Müller
  • Publication number: 20240385272
    Abstract: Techniques are described for complex preprocessing steps to ensure consistency of sorted sets of reference measurement data, which have conventionally been required when sorting reference measurement data sets for DPG algorithms captured using an EPI technique, to be omitted because items of reference measurement data captured via the described techniques are already consistent in themselves. Therefore, for each polarity of the read-out gradients, a set of fully sampled reference measurement data is available, which is already suitable for carrying out a dual-polarity (DP) algorithm without any further measures.
    Type: Application
    Filed: May 15, 2024
    Publication date: November 21, 2024
    Applicant: Siemens Healthineers AG
    Inventors: Thorsten Feiweier, Mario Zeller, Adam Kettinger, Michael Köhler, Max Müller
  • Publication number: 20240374141
    Abstract: A dental coil comprises a first element and a second element. The first element is composed of a dimensionally stable material and has a recess that is configured to receive at least one of a mouth region or a nose region of a patient when the dental coil is positioned on the jaw region of the patient during use. The second element has a flexible element that is configured to allow the flexible element to take the shape of the jaw region of the patient. The first element and the second element have an antenna configured to receive high-frequency signals in a frequency and power range of a magnetic resonance measurement.
    Type: Application
    Filed: August 22, 2022
    Publication date: November 14, 2024
    Applicants: Siemens Healthineers AG, Dentsply Sirona Inc., SIRONA Dental Systems GmbH
    Inventors: Andreas GREISER, Edgar MUELLER, Lars LAUER, Stephan BIBER, Mario ZELLER, Matthias GEBHARDT, Johannes ULRICI, Stefan WUNDRAK, Titus LANZ, Florian ODOJ, Tobias WICHMANN, Joerg ROTHARD, Sebastian DENNERT, Marco GEISSNER
  • Patent number: 12136144
    Abstract: The disclosure relates to techniques for operating an imaging facility for preparing an imaging process. For each imaging process, at least one image dataset is reconstructed in a reconstruction step from raw data recorded in accordance with at least one recording protocol using a reconstruction facility with reconstruction software. For advance calculation of a duration for the reconstruction step, an input dataset comprising at least one protocol parameter of the recording protocol influencing the duration of the reconstruction step and at least one hardware parameter describing the hardware of the reconstruction facility and/or at least one software parameter describing the reconstruction software is compiled, and the duration is ascertained from the input dataset by way of a trained advance calculation function, which is trained by machine learning.
    Type: Grant
    Filed: April 17, 2024
    Date of Patent: November 5, 2024
    Assignee: Siemens Healthineers AG
    Inventor: Mario Zeller