Patents by Inventor Jörg Roland
Jörg Roland 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).
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Patent number: 11452461Abstract: Techniques are disclosed for positioning a patient within a patient receiving area for a magnetic resonance examination. The techniques may include positioning the patient on a mobile patient table of a patient support facility and moving the patient table in a first horizontal direction until a region of the patient to be examined is arranged in a field of view of a patient receiving area of a magnetic resonance system. Moreover, the patient positioning techniques may include moving the patient table in a second horizontal direction and/or in a vertical direction within the patient receiving area, and acquiring medical magnetic resonance data of the region of the patient to be examined.Type: GrantFiled: August 16, 2019Date of Patent: September 27, 2022Assignee: Siemens Healthcare GmbHInventor: Joerg Roland
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Patent number: 10598746Abstract: For reduction of artifacts when acquiring magnetic resonance (MR) data using an MR apparatus, a SPAR pulse, which acts on spins in a first predetermined frequency range, and a saturation pulse, which acts on spins in a second predetermined frequency range, are radiated. A gradient for spatial encoding is activated at the same time as the saturation pulse, so that the saturation pulse acts on an edge region adjacent to the volume segment. The edge region borders an ellipsoidal useful volume of the scanner of the MR apparatus, in which the strength of the B0 field changes in terms of magnitude by no more than 30 ppm. Spoiler gradients are activated to destroy a transverse magnetization, before an RF excitation pulse, adjusted to the SPAIR pulse, is radiated. MR data are acquired after the SPAIR pulse, the saturation pulse and the RF excitation pulse. The second frequency range is adjusted to the first frequency range.Type: GrantFiled: May 7, 2018Date of Patent: March 24, 2020Assignee: Siemens Healthcare GmbHInventors: Simon Bauer, Ralf Kartaeusch, Joerg Roland
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Patent number: 10593038Abstract: A method is provided for creating magnetic resonance images of a predetermined three-dimensional volume segment of a living object undergoing examination, using a magnetic resonance device. The method includes acquiring magnetic resonance data in the volume segment by radial acquisition of a k-space for a predetermined duration of capture that includes at least one full respiratory period of the object undergoing examination; analyzing the magnetic resonance data in order to determine therefrom at least one respiratory period; forming at least one data group that includes only the magnetic resonance data that belongs to at least one respiratory state of the at least one respiratory period; and creating the magnetic resonance images from only the magnetic resonance data of the at least one data group. Here, it is advantageous that magnetic resonance images of higher temporal resolution and/or better image quality, in particular with smaller image artifacts, may be provided.Type: GrantFiled: February 13, 2018Date of Patent: March 17, 2020Assignee: Siemens Healthcare GmbHInventors: Simon Bauer, Ralf Kartäusch, Jörg Roland
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Publication number: 20200054240Abstract: Techniques are disclosed for positioning a patient within a patient receiving area for a magnetic resonance examination. The techniques may include positioning the patient on a mobile patient table of a patient support facility and moving the patient table in a first horizontal direction until a region of the patient to be examined is arranged in a field of view of a patient receiving area of a magnetic resonance system. Moreover, the patient positioning techniques may include moving the patient table in a second horizontal direction and/or in a vertical direction within the patient receiving area, and acquiring medical magnetic resonance data of the region of the patient to be examined.Type: ApplicationFiled: August 16, 2019Publication date: February 20, 2020Applicant: Siemens Healthcare GmbHInventor: Joerg Roland
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Patent number: 10551456Abstract: In a method, apparatus and medical imaging system to generate image data based on magnetic resonance (MR) thermometry data, planning data of a region of an examination subject that is to be depicted thermometrically are provided to a processor. Through the processor, segmentation data based on the planning data are generated MR thermometry data are provided to the processor, which generates image data on the basis of the MR thermometry data, using the segmentation data.Type: GrantFiled: February 13, 2014Date of Patent: February 4, 2020Assignee: Siemens AktiengesellschaftInventors: Joerg Roland, Eva Rothgang, Michael Suehling
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Patent number: 10349865Abstract: In a method, a local coil, and an apparatus for magnetic resonance imaging, an examination subject is situated in a patient receiving area of the apparatus, together with at least one marker element. The apparatus is operated to perform a radio-frequency excitation of the at least one marker element, and to read out magnetic resonance signals that are emitted by the at least one marker element. An image data acquisition scanner of the magnetic resonance apparatus is adjusted using the magnetic resonance signals that have been read out. Magnetic resonance image data are acquired from the subject by operation of the adjusted image data acquisition scanner.Type: GrantFiled: July 22, 2015Date of Patent: July 16, 2019Assignee: Siemens AktiengesellschaftInventor: Joerg Roland
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Patent number: 10175323Abstract: A method for adapting activation parameters used to generate a pulse sequence when activating a magnetic resonance system is provided. The method includes determining stimulation values for the pulse sequence based on predefined activation parameters. The stimulation values represent a stimulation exposure of a patient. Test regions that exhibit stimulation maxima are identified in the pulse sequence, and the identified test regions are tested with respect to compliance with a predefined stimulation limit value.Type: GrantFiled: February 6, 2015Date of Patent: January 8, 2019Assignee: Siemens AktiengesellschaftInventors: Daniel Niederlöhner, Dominik Paul, Jörg Roland
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Patent number: 10168406Abstract: In order to provide an effective optimization of a magnetic resonance sequence, particularly with regard to optimizing the slew rates of gradient switching sequences of the magnetic resonance sequence, in a method for optimizing a magnetic resonance sequence of a magnetic resonance apparatus, wherein the magnetic resonance sequence includes multiple pre-set gradient switching sequences with multiple pre-set slew rates, the multiple pre-set slew rates are provided to a computer wherein the multiple pre-set slew rates are evaluated. At least one optimization measure for the magnetic resonance sequence is defined based on the evaluation of the multiple pre-set slew rates. The magnetic resonance sequence is optimized based on the at least one pre-set optimization measure, wherein the optimized magnetic resonance sequence has multiple optimized gradient switching sequences with multiple optimized slew rates, and the multiple optimized slew rates being optimized in relation to the multiple pre-set slew rates.Type: GrantFiled: April 14, 2015Date of Patent: January 1, 2019Assignee: Siemens AktiengesellschaftInventors: Dominik Paul, Joerg Roland
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Patent number: 10162032Abstract: In a magnetic resonance apparatus and an operating method therefor in which magnetic resonance data are acquired from a patient, a measurement process is used in which a number of magnetic resonance sequences are carried out sequentially, and a maximum measurement time parameter, describing a maximum possible measurement time for undershooting a threshold value for the overall energy input into the patient during the measurement process, is established, taking into account other known recording parameters of the measurement process. The maximum measurement time parameter is used to restrict the ability of an operator to set a measurement time parameter describing the measurement time as a recording parameter, and/or is used as the measurement time parameter.Type: GrantFiled: September 15, 2015Date of Patent: December 25, 2018Assignee: Siemens AktiengesellshaftInventors: Wolfgang Bielmeier, Miriam Keil, Joerg Roland, Stephan Stoecker
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Patent number: 10139467Abstract: A method computer and magnetic resonance (MR) apparatus for controlling a table position of an examination table of the MR apparatus during an MR measurement. An SAR load is determined for an examination object with a calculated pulse sequence, at least for a first table position. Then the table position is adjusted while taking into consideration the SAR load at the first table position. The adjustment of the table position ensures that the SAR load of the examination object is reduced.Type: GrantFiled: June 17, 2015Date of Patent: November 27, 2018Assignee: Siemens AktiengesellschaftInventors: Diana Martin, Joerg Roland
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Publication number: 20180321346Abstract: For reduction of artifacts when acquiring magnetic resonance (MR) data using an MR apparatus, a SPAR pulse, which acts on spins in a first predetermined frequency range, and a saturation pulse, which acts on spins in a second predetermined frequency range, are radiated. A gradient for spatial encoding is activated at the same time as the saturation pulse, so that the saturation pulse acts on an edge region adjacent to the volume segment. The edge region borders an ellipsoidal useful volume of the scanner of the MR apparatus, in which the strength of the B0 field changes in terms of magnitude by no more than 30 ppm. Spoiler gradients are activated to destroy a transverse magnetization, before an RF excitation pulse, adjusted to the SPAIR pulse, is radiated. MR data are acquired after the SPAIR pulse, the saturation pulse and the RF excitation pulse. The second frequency range is adjusted to the first frequency range.Type: ApplicationFiled: May 7, 2018Publication date: November 8, 2018Applicant: Siemens Healthcare GmbHInventors: Simon Bauer, Ralf Kartaeusch, Joerg Roland
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Publication number: 20180232880Abstract: A method is provided for creating magnetic resonance images of a predetermined three-dimensional volume segment of a living object undergoing examination, using a magnetic resonance device. The method includes acquiring magnetic resonance data in the volume segment by radial acquisition of a k-space for a predetermined duration of capture that includes at least one full respiratory period of the object undergoing examination; analyzing the magnetic resonance data in order to determine therefrom at least one respiratory period; forming at least one data group that includes only the magnetic resonance data that belongs to at least one respiratory state of the at least one respiratory period; and creating the magnetic resonance images from only the magnetic resonance data of the at least one data group. Here, it is advantageous that magnetic resonance images of higher temporal resolution and/or better image quality, in particular with smaller image artifacts, may be provided.Type: ApplicationFiled: February 13, 2018Publication date: August 16, 2018Inventors: Simon Bauer, Ralf Kartäusch, Jörg Roland
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Patent number: 9732816Abstract: A rubber-metal sleeve bearing includes an outer sleeve having a first outer edge and a second outer edge in opposing relationship to the first outer edge, when viewed in an axial direction. The first and second outer edges each have at least one section provided with radially inwardly recessed outer edge regions. An inner sleeve is disposed in concentric relation to the outer sleeve, and an intermediate sleeve is disposed concentrically between the outer and inner sleeves and connected to the outer sleeve via a first elastomer layer and to the inner sleeve via a second elastomer layer.Type: GrantFiled: January 15, 2016Date of Patent: August 15, 2017Assignee: AUDI AGInventors: Thomas Conrad, Jörg Roland
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Patent number: 9556903Abstract: A rubber-metal sleeve bearing includes an inner sleeve, an outer sleeve disposed in concentric relationship to the inner sleeve, and an intermediate sleeve disposed in concentric relationship to the inner and outer sleeves and having first and second elastomer layers to connect the intermediate sleeve to the inner and outer sleeves, respectively. The intermediate sleeve has inner and outer surfaces, each having at least one non-round section, with the non-round section of the inner surface and the non-round section of the outer surface being arranged in offset relationship in a circumferential direction.Type: GrantFiled: March 6, 2015Date of Patent: January 31, 2017Assignee: AUDI AGInventors: Thomas Conrad, Friedrich-Oskar Winter, Jörg Roland
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Patent number: 9404985Abstract: In a method and magnetic resonance apparatus to determine at least one datum of an implanted silicone implant, at least one magnetic resonance data set is acquired, with the acquired signals of the magnetic resonance data set originating at least in part from the silicone implant. At least one spectrum is calculated from the magnetic resonance data set, and the datum is determined in a processor from the spectrum.Type: GrantFiled: October 17, 2013Date of Patent: August 2, 2016Assignee: Siemens AktiengesellschaftInventors: Joerg Roland, Christian Schuster
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Publication number: 20160208879Abstract: A rubber-metal sleeve bearing includes an outer sleeve having a first outer edge and a second outer edge in opposing relationship to the first outer edge, when viewed in an axial direction. The first and second outer edges each have at least one section provided with radially inwardly recessed outer edge regions. An inner sleeve is disposed in concentric relation to the outer sleeve, and an intermediate sleeve is disposed concentrically between the outer and inner sleeves and connected to the outer sleeve via a first elastomer layer and to the inner sleeve via a second elastomer layer.Type: ApplicationFiled: January 15, 2016Publication date: July 21, 2016Applicant: Audi AGInventors: THOMAS CONRAD, JÖRG ROLAND
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Publication number: 20160077181Abstract: In a magnetic resonance apparatus and an operating method therefor in which magnetic resonance data are acquired from a patient, a measurement process is used in which a number of magnetic resonance sequences are carried out sequentially, and a maximum measurement time parameter, describing a maximum possible measurement time for undershooting a threshold value for the overall energy input into the patient during the measurement process, is established, taking into account other known recording parameters of the measurement process. The maximum measurement time parameter is used to restrict the ability of an operator to set a measurement time parameter describing the measurement time as a recording parameter, and/or is used as the measurement time parameter.Type: ApplicationFiled: September 15, 2015Publication date: March 17, 2016Applicant: Siemens AktiengesellschaftInventors: Wolfgang Bielmeier, Miriam Keil, Joerg Roland, Stephan Stoecker
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Publication number: 20160025830Abstract: In a method, a local coil, and an apparatus for magnetic resonance imaging, an examination subject is situated in a patient receiving area of the apparatus, together with at least one marker element. The apparatus is operated to perform a radio-frequency excitation of the at least one marker element, and to read out magnetic resonance signals that are emitted by the at least one marker element. An image data acquisition scanner of the magnetic resonance apparatus is adjusted using the magnetic resonance signals that have been read out. Magnetic resonance image data are acquired from the subject by operation of the adjusted image data acquisition scanner.Type: ApplicationFiled: July 22, 2015Publication date: January 28, 2016Applicant: SIEMENS AKTIENGESELLSCHAFTInventor: Joerg Roland
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Publication number: 20150362567Abstract: A method computer and magnetic resonance (MR) apparatus for controlling a table position of an examination table of the MR apparatus during an MR measurement. An SAR load is determined for an examination object with a calculated pulse sequence, at least for a first table position. Then the table position is adjusted while taking into consideration the SAR load at the first table position. The adjustment of the table position ensures that the SAR load of the examination object is reduced.Type: ApplicationFiled: June 17, 2015Publication date: December 17, 2015Applicant: Siemens AktiengesellschaftInventors: Diana Martin, Joerg Roland
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Publication number: 20150293190Abstract: In order to provide an effective optimization of a magnetic resonance sequence, particularly with regard to optimizing the slew rates of gradient switching sequences of the magnetic resonance sequence, in a method for optimizing a magnetic resonance sequence of a magnetic resonance apparatus, wherein the magnetic resonance sequence includes multiple pre-set gradient switching sequences with multiple pre-set slew rates, the multiple pre-set slew rates are provided to a computer wherein the multiple pre-set slew rates are evaluated. At least one optimization measure for the magnetic resonance sequence is defined based on the evaluation of the multiple pre-set slew rates. The magnetic resonance sequence is optimized based on the at least one pre-set optimization measure, wherein the optimized magnetic resonance sequence has multiple optimized gradient switching sequences with multiple optimized slew rates, and the multiple optimized slew rates being optimized in relation to the multiple pre-set slew rates.Type: ApplicationFiled: April 14, 2015Publication date: October 15, 2015Applicant: Siemens AktiengesellschaftInventors: Dominik Paul, Joerg Roland