Patents by Inventor Joerg Roland
Joerg 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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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: 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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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: 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
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Publication number: 20150293191Abstract: In a method and device for optimizing a magnetic resonance sequence for operating a magnetic resonance apparatus, in order provide effective optimization of the magnetic resonance sequence, particularly with regard to optimizing the slew rates of gradient switching sequences of the magnetic resonance sequence, the magnetic resonance sequence has multiple gradient switching sequences, each having a slew rate, and optimization at least of one gradient switching sequence of the multiple gradient switching sequences is implemented by an iterative adjustment in the slew rate of the at least one gradient switching sequence.Type: ApplicationFiled: April 14, 2015Publication date: October 15, 2015Applicant: Siemens AktiengesellschaftInventors: Dominik Paul, Joerg Roland
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Patent number: 9000765Abstract: In a magnetic resonance method and system to determine a position of a slice relative to a region moving relative to the slice within a predetermined volume segment of an examination subject located in the magnetic resonance system, a physical property within the slice is detected with spatial resolution at multiple points in time, such that a time curve of the physical property is detected for at least one voxel of the slice. The position of the slice relative to the region is determined with respect to defined points in time, depending on the time curve.Type: GrantFiled: October 14, 2011Date of Patent: April 7, 2015Assignee: Siemens AktiengesellschaftInventors: Antje Kickhefel, Joerg Roland, Eva Rothgang
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Publication number: 20140243654Abstract: 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: ApplicationFiled: February 13, 2014Publication date: August 28, 2014Inventors: Joerg Roland, Eva Rothgang, Michael Suehling
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Patent number: 8792961Abstract: In a method and magnetic resonance (MR) system to create an MR magnitude image data set and a phase image data set of an examination subject, first echo signals in a first raw MR data set are detected after a first echo time TE1 and at least second echo signals in at least one second raw MR data set are detected after a second echo time TE2 that is longer than TE1, a magnitude image data set is generated on the basis of the first raw MR data set and the at least one second raw MR data set with averaging of the first and the at least one second raw MR data set, and the phase image data set is generated based on the phase information contained in the at least two raw MR data sets, with averaging of the respective phase information contained in the at least two raw MR data sets.Type: GrantFiled: October 11, 2010Date of Patent: July 29, 2014Assignee: Siemens AktiengesellschaftInventors: Patric Gross, Joerg Roland
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Publication number: 20140191754Abstract: In a method and magnetic resonance apparatus for determining at least one datum providing a measure for the effect of at least one medical device that is to be connected to, or is connected to, an examination subject in the scope of a magnetic resonance examination that is to be executed, or has been executed, on the image data that are to be obtained, or have been obtained, in the scope of a magnetic resonance examination that is to be executed, or has been executed, and/or on the examination subject that is to be examined, or has been examined, in the scope of the magnetic resonance examination that is to be executed, or has been executed, the at least one datum is determined by at least one magnetic resonance thermometric measurement.Type: ApplicationFiled: January 9, 2014Publication date: July 10, 2014Inventors: Martin Ringholz, Joerg Roland, Eva Rothgang
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Patent number: 8754645Abstract: In a magnetic resonance (MR) method and apparatus for spatially resolved determination of at least one MR parameter that influences an MR signal detected in an MR measurement of a region of an examination subject, first complex image data and second complex image data, respectively acquired with different acquisition coils and at different echo times in an echo imaging sequence, are provided to a processor. The different image data sets have complex image points that correspond with each other with regard to the imaged volume element of the examination subject. The MR parameter is determined in the processor for at least a portion of these image points by determination of an image point vector respectively for the first and second echo times and by combining the image point vectors to at least partially compensate echo time-independent phase or magnitude portions in the acquired image data.Type: GrantFiled: September 22, 2011Date of Patent: June 17, 2014Assignee: Siemens AktiengesellschaftInventors: Patrick Gross, Antje Kickhefel, Joerg Roland