Patent application number | Description | Published |
20100076298 | METHOD AND DEVICE FOR DETERMINING THE SPATIAL DISTRIBUTION OF THE SPECIFIC ABSORPTION RATE PRODUCED BY AN ELECTROMAGNETIC FIELD-RADIATING APPARATUS - In a method to determine the spatial distribution of the specific absorption rate in tissue that represents a measure of the absorption of electromagnetic fields emitted by means of a radiation generating element, at least one item of measurement information acquired by a thermoacoustic computed tomography device is used to determine the specific absorption rate. | 03-25-2010 |
20100087727 | MULTI-MODALITY IMAGING APPARATUS AND METHOD FOR REGISTRATION OF THE MULTIPLE MODALITIES - Method to register multiple different imaging modalities warming an examination subject in a common image acquisition region of all imaging modalities, simultaneous or time-offset acquisition of at least one first image data set with a first imaging modality, simultaneous or time-offset acquisition of at least one second heat image data set with a second imaging modality, determining at least one item of heat information resulting from the warming of the examination subject is determined from each of the first image data set and the second heat image data set, and registration of the imaging modalities using the determined heat information. | 04-08-2010 |
20100231217 | MAGNETIC RESONANCE METHOD AND APPARATUS TO ACQUIRE MULTIPLE IMAGE DATA SETS FROM A SUBJECT - In a magnetic resonance (MR) method and apparatus for the acquisition of a first image data set and a second image data set of an examination subject, a series of excitation pulses is radiated into the examination subject, and after each excitation pulse, a first echo signal is detected after a first echo time TE | 09-16-2010 |
20100253339 | MAGNETIC RESONANCE APPARATUS AND METHOD TO DETECT INCORRECT MAGNETIC RESONANCE DATA - In a method and apparatus to detect incorrect MR data in k-space representing MR signals acquired from an examination subject with at least two acquisition coils, MR data are acquired to generate at least one raw data set with each of the at least two acquisition coils and a check is made, for at least one k-space point, as to whether the MR data acquired for this k-space point should be replaced or not. In the event that the check yields that the MR data acquired for the at least one k-space point should be replaced, the MR data are replaced with reconstructed MR data that are based on at least two of the acquired raw data sets. | 10-07-2010 |
20100317960 | THERMOTHERAPY DEVICE AND METHOD TO IMPLEMENT THERMOTHERAPY - A thermotherapy device has a transmitter, a receiver and a processing unit. The transmitter is designed to emit a high-energy radiation in a treatment region of a patient. The high-energy radiation exhibits a power that is suitable for thermotherapy. The receiver is designed to detect a sound signal that is generated by the treatment region depending on the high-energy radiation radiated into said treatment region. The processing unit is coupled with the transmitter) and the receiver. The processing unit automatically determines information about the treatment region depending on the detected sound signal. | 12-16-2010 |
20110043207 | Whole-Body Coil Arrangement for an Open Magnetic Resonance Scanner for Use With a Second Diagnostic and/or Therapeutic Modality - A whole-body coil arrangement for an open magnetic resonance scanner for use with a second diagnostic and/or therapeutic modality is proposed. The whole-body coil arrangement includes at least one coil conductor and a radio-frequency shield. The whole-body coil arrangement is embodied at least in part as essentially transparent to the second modality. | 02-24-2011 |
20110087103 | ULTRASOUND FOCUS POSITIONING DEVICE - A positioning device has a computer and an ultrasound device that is provided to expose biological tissue with high-intensity, focused ultrasound radiation, and an ultrasound transducer unit, a mechanical focusing unit and an electronic focusing unit for positioning and/or focusing of the high-intensity, focused ultrasound radiation of the ultrasound transducer unit. The computer is designed to adjust the focus position of the ultrasound transducer unit along at least one dimension by operating the mechanical focusing unit; and the computer is designed to regulate the focus position of the ultrasound transducer unit along the at least one dimension by operating the electronic focusing unit after the positioning by the mechanical focusing unit. | 04-14-2011 |
20110092801 | METHOD FOR OBTAINING MAGNETIC RESONANCE IMAGE DATA USING A MULTI-ECHO MR SEQUENCE WITH IMPROVED SIGNAL-TO-NOISE RATIO OF THE PHASE INFORMATION - 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 TE | 04-21-2011 |
20110125143 | THERMAL ABLATION DEVICE, CATHETER AND METHOD TO IMPLEMENT A THERMAL ABLATION - A thermal ablation device for introduction of heat or cold into the body of a patient has a first heating or cooling device to heat or cool the tissue to be ablated, as well as at least one additional cooling or heating arrangement that serves to cool or heat tissue surrounding the tissue to be ablated, and that can be introduced into a natural or latent cavity of the patient. | 05-26-2011 |
20110130690 | DEVICE AND METHOD TO THERMALLY AFFECT DELIMITED REGIONS OF THE BODY OF A PATIENT - Device to thermally affect delimited regions of the body of a patient, wherein it possesses at least one heating or cooling means that can be inserted into a blood vessel of the patient or can be attached to a blood vessel of the patient in order to heat or cool the blood in a portion of the blood vessel that leads into or away from a tissue to be treated. | 06-02-2011 |
20110145992 | Medical imaging facility and a measurement method for detecting a position of a transport device of the medical imaging facility - A medical imaging facility has a transport device which is able to be moved at least partly in at least one direction. A position detection device has at least one transmit element which detects the position of the transport device and sends out a position measurement beam. The position detection device has at least one detector element and at least one reflector element. | 06-23-2011 |
20110147611 | MEDICAL IMAGING EQUIPMENT AND A MEASURING METHOD FOR DETECTING THE POSITION OF A CONVEYING DEVICE OF THE MEDICAL IMAGING EQUIPMENT - A medical imaging equipment has a conveying device that can be moved at least partially in at least one direction. A position-detecting device has at least one transmitting element which detects a position of the conveying device and emits position-measuring radiation. The position-detecting device has at least one detector element. The position-detecting device has at least one semi-transparent reflector element. | 06-23-2011 |
20110176714 | METHOD TO DETERMINE A BACKGROUND PHASE IN PHASE IMAGE DATA SETS - In a method to determine a background phase in phase values of a phase image data set that is acquired from an examination subject, wherein the background phase is determined in a partial region of the phase image data set, the phase image data set of the examination subject is acquired, and a substantially closed, planar contour is established in the phase image data set around the partial region, the planar contour having a contour area with a width of at least one pixel of the phase image data set. The phase values in the partial region are determined with the assumption that the spatial curve of the background phase is a harmonic or quasi-harmonic function, the phase values of the pixels in the partial region being determined based on the phase values in the planar contour. | 07-21-2011 |
20110196226 | Apparatus Having a Combined Magnetic Resonance Apparatus and Radiation Therapy Apparatus - An apparatus having a combined magnetic resonance apparatus is proposed. The magnetic resonance apparatus features at least one main magnet for generating a main magnetic field in an examination space for a magnetic resonance measurement, and a radiation therapy apparatus, which is provided to generate a particle beam and which features a beam guide. The magnetic resonance apparatus features an essentially magnetic-field-free region and the beam guide for the particle beam runs along the essentially magnetic-field-free region. | 08-11-2011 |
20110196227 | Apparatus with a Combination of a Magnetic Resonance Apparatus and a Radiotherapy Apparatus - An apparatus with a combination of a magnetic resonance apparatus is proposed. The apparatus has at least one main magnet for generating a magnetic field in an examination area for a magnetic resonance measurement and a radiotherapy apparatus which is designed for generating a particle beam. A direction of a speed of the particle beam is aligned substantially in parallel to a direction of a magnetic flux density of the magnetic field. | 08-11-2011 |
20120004681 | METHOD, RETENTION DEVICE AND MEDICAL TREATMENT DEVICE FOR STABLE SUPPORT OF A NEEDLE TO BE INSERTED INTO A PATIENT - A method for stable support of a needle to be introduced into a patient, a body to be penetrated by the needle is arranged on the patient. The body is made of a substance corresponding in terms of its mechanical properties to body tissue (in particular corresponding to body tissue in terms of visco-elastic coefficients and density) and/or is made of a gel-like substance. | 01-05-2012 |
20120022508 | METHOD AND ORIENTATION DEVICE FOR MARKING A PREDETERMINED GUIDE PATH OF A MEDICAL INSTRUMENT - In a method for marking a predetermined guide path of a medical instrument in particular a needle, at least one guide path having an angle relative to vertical is indicated by means of at least one adjustable indicator unit such as a light source, and a one-dimensional or two-dimensional inclination sensor is used to adjust the at least one indicator unit with regard to the angle relative to vertical. | 01-26-2012 |
20120041306 | CONTRAST AGENT ADMINISTRATION METHOD AND SYSTEM TO MAINTAIN CONTRAST AGENT AT A LOCALIZED SITE OF DELIVERY - In a method and system for administering a dispersible medical agent to a subject, a volume of medical agent is delivered in vivo to a subject in a substantially non-dispersed state, at a localized site in tissue of the subject. Contemporaneously with administration of the medical agent to the localized site, energy from an energy source is introduced into only adjacent tissue surrounding the localized site. The energy produces a cellular modification of the adjacent tissue that makes the adjacent tissue substantially impermeable to passage of the medical agent therethrough, so the medical agent is encapsulated and is prevented from dispersing into tissue outside of the encapsulation. | 02-16-2012 |
20120068703 | METHOD FOR SPATIALLY RESOLVED DETERMINATION OF AN MR PARAMETER - 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. | 03-22-2012 |
20120116208 | TEMPERATURE MEASUREMENT NEAR AN ICE BALL USING A PROTON RESONANCE FREQUENCY METHOD AND RECALCULATION OF SUSCEPTIBILITY ARTIFACTS - In a method or system for magnetic resonance imaging based temperature monitoring for real-time feedback to a physician for a cryoablation therapy of a lesion which creates an ice ball of the lesion to induce cell death, the magnetic resonance imaging system, using proton resonance frequency imaging, obtains a real-time temperature image of the ice ball of the lesion undergoing the cryoablation therapy and the adjacent surrounding tissue. By use of an algorithm, correcting temperature errors at a border of the ice ball are corrected in the real-time image, the temperature error correction correcting susceptibility contrast errors caused by a distortion of the local magnetic field at the border of the ice ball. | 05-10-2012 |
20120133361 | SUPPLEMENTATION OF ACQUIRED, UNDERSAMPLED MR DATA - In a computerized method and magnetic resonance (MR) system for the supplementation of acquired MR data, at least one supplemented MR data set is determined from multiple acquired, reduced MR data sets that can be acquired with an accelerated acquisition method (such as partially parallel acquisition method, ppa) in which k-space is undersampled. The acquisition can thereby take place in parallel with multiple acquisition coils. In the method and system, a reconstruction kernel is applied to the multiple acquired, reduced MR data sets in order to determine a reconstructed MR data set for an acquisition coil. The reduced MR data set acquired with the acquisition coil is reused in this reconstructed MR data set. The reuse takes place by a combination with weighting with the respective variances. | 05-31-2012 |
20120133362 | MAGNETIC RESONANCE METHOD AND SYSTEM FOR PHASE CORRECTION OF MAGNETIC RESONANCE SIGNALS ORIGINATING IN MIXED TISSUE - In a magnetic resonance (MR) system and method to separate an MR system-dependent phase influence from a subject-dependent phase influence in phase values of an MR phase image data set of an examination subject acquired, to which two different tissue types with different resonance frequencies make a signal contribution, the system-dependent phase influence is determined by selecting a contour around a region shown in the MR phase image data set, calculating the system-dependent phase influence in this region with the assumption that the spatial curve of the background phase corresponds to a harmonic or quasi-harmonic function, and subtracting the system-dependent phase influence from the acquired phase image data set to determine the subject-dependent phase influence. | 05-31-2012 |
20120134565 | METHOD AND MAGNETIC RESONANCE SYSTEM TO DETERMINE SYSTEM-DEPENDENT PHASE INFORMATION - In a method to determine an MR system-dependent phase information of a phase value in an MR phase image data set, initial variances are associated with image points of a first phase image data set, and for an additional phase image data set, a phase value and a variance of the phase value for the image points of the additional phase image data set are estimated by a linear transformation of the first phase image data set. The additional image data set is calculated by weighted addition of the phase values of the first phase image data set with the estimated phase values, with the weighting of the two phase values taking place in the addition dependent on the variance belonging to the respective phase value. | 05-31-2012 |
20120194192 | MECHANICALLY FLEXIBLE MAGNETIC RESONANCE COIL WITH OPENING CONDUCTOR STRUCTURES - The present embodiments relate to a local coil for a magnetic resonance tomography system, the local coil including an antenna element that includes a releasable connection to form an opening. | 08-02-2012 |
20120223707 | Method and device for establishing excitation parameters for MR imaging - A method and a device for establishing excitation parameters, in particular for establishing an excitation profile, for MR imaging, are proposed. Elements of a k-space covariance matrix are determined for signal noise in k-space data which is captured using a plurality of receive channels in the context of data captured at an examination object. Elements of at least one image space covariance matrix are mathematically determined for a plurality of voxels of the examination object as a function of the k-space covariance matrix. The excitation parameters are established as a function of the determined elements of the at least one image space covariance matrix. | 09-06-2012 |
20120224757 | METHOD AND DEVICE TO PROCESS COMPLEX IMAGE DATA - Complex magnetic resonance (MR) image data, acquired from an examination subject that has at least two different spin species, are processed in a method and a device. At least one MR parameter that influences data acquired in an MR data acquisition is determined with spatial resolution. Complex image data are respectively acquired with each of multiple acquisition units in an MR data acquisition at multiple echo times, such that a phase difference between the first spin species and the second spin species is different at least two of the echo times. For multiple image points, a value of the at least one MR parameter is determined so that a function that depends on the at least one MR parameter and the corresponding image point in the complex image data satisfies an extreme condition. | 09-06-2012 |
20130116542 | MEDICAL IMAGING METHOD AND SYSTEM - In an imaging procedure, sound pressure is generated by applying ultrasound to the region to be imaged in order to cause a deformation of tissue therein from at least one acquired ultrasound image data set, first data are determined that represent, with spatial resolution, the deformation of the tissue as a reaction to the sound pressure. At least one magnetic resonance image data set is acquired, from which second data are determined that represent, with spatial resolution, the deformation of the tissue as a reaction to the sound pressure. The at least one ultrasound image data set and the at least one magnetic resonance image data set are brought into registration with each other by a comparison of the first data and the second data. | 05-09-2013 |
20130188852 | ACQUISITION DEVICE AND A METHOD FOR CONTROL THEREOF - In a method to control a second image acquisition device to acquire a second image data set to be jointly evaluated (in particular to be merged) with a first image data set acquired with a different, first image acquisition device that uses a different imaging method than the second image acquisition device, at least one item of setting information is extracted from the first image data set and/or a metadata set) associated with the first image data set, and from the setting information at least one acquisition parameter is determined in order to acquire the second image data set and/or for a planning image data set that prepares the acquisition of the second image data set. The second image acquisition device is controlled using the acquisition parameter so as to acquire the second image data set and/or the planning image data set. | 07-25-2013 |
20130219620 | PATIENT SUPPORT APPARATUS AND MEDICAL IMAGING APPARATUS HAVING THE PATIENT SUPPORT APPARATUS - A patient support apparatus is provided. The patient support apparatus has a patient table, a movable support plate for supporting a patient, a guide unit, which is designed to guide the support plate along at least one movement direction of the support plate, and a fastening unit for fastening an auxiliary unit to the support plate. The fastening unit has at least one setting unit for setting the position of the auxiliary unit in relation to the support plate in a flexible manner. | 08-29-2013 |
20130219621 | PATIENT SUPPORT APPARATUS AND MEDICAL IMAGING APPARATUS COMPRISING THE PATIENT SUPPORT APPARATUS - A patient support apparatus, in particular for a medical imaging apparatus, has a table for supporting a patient, and a support unit, wherein the table is arranged at the support unit such that the table may be displaced along a longitudinal extension of the support unit. Further, the patient support apparatus has a protective wall element which closes off a region for receiving fluids on the table and/or on the support unit in a fluid-tight manner. | 08-29-2013 |
20130237822 | COMBINED RADIOTHERAPY ULTRASOUND DEVICE - In order to minimize radiation directed to a region outside of a target volume of a patient during a radiation therapy and minimize the cost of an image-guided particle therapy system, the particle therapy system includes an ultrasound device having at least one ultrasound transducer positioned abutting or adjacent to an external surface of the patient. The ultrasound device and thus the ultrasound transducer are positioned outside of a beam path of a particle beam between a radiotherapy device generating the particle beam, and the target volume. The ultrasound device is operable to generate data representing the target volume and/or a region outside of the target region while the radiotherapy device directs the particle beam to the target volume. The particle therapy system includes a processor operable to control the radiotherapy device based on a comparison between the generated data representing the target volume and a predetermined treatment plan. | 09-12-2013 |
20130261429 | Magnetic Resonance and Ultrasound Parametric Image Fusion - Magnetic resonance and ultrasound parametric image is fused or combined. MRI and ultrasound imaging are used to acquire the same type of parametric images. Fused data is created by combining ultrasound and MRI parametric data at times for which both types of data are available. Rather than sacrificing rate, fused data is created for times for which MRI data is not acquired. A curve representing the values of the parameter over time is fit to the available MRI and ultrasound data of each location, resulting in fused data at times for which MRI data is not available. | 10-03-2013 |
20130274589 | System Scan Timing by Ultrasound Contrast Agent Study - Scan timing of contrast agent study is provided. Ultrasound is used to determine timing of contrast agent inflow and/or outflow. The timing based on the ultrasound scanning controls scanning for MR or CT imaging. The MR or CT contrast agent imaging for MR or CT contrast agents may be synchronized using the ultrasound contrast agent flow. | 10-17-2013 |