Patent application number | Description | Published |
20140219525 | METHOD TO PREPARE AN INTERVENTIONAL AND/OR DIAGNOSTIC IMAGING PROCEDURE WITH AT LEAST TWO DIFFERENT MEDICAL IMAGING MODALITITES - In a method and medical imaging system to prepare an interventional and/or diagnostic imaging procedure to be conducted with at least two different medical imaging modalities of the system, a patient is positioned on a patient support device and the patient support device, together with the patient, are moved into a patient acquisition region of a first medical imaging modality of the system. A first image data set of the patient to be examined is acquired with the first medical imaging modality. The first image data set is automatically evaluated in a data evaluation unit. At least patient parameter is automatically calculated from the evaluated first image data set. At least one compatibility value is automatically calculated depending on the at least one patient parameter and depending on at least one apparatus parameter of at least one additional medical imaging modality in the system. The compatibility value indicates whether the additional modality is compatible with the patient in order to conduct another of the procedures using that additional modality. | 08-07-2014 |
20140285197 | METHOD AND MAGNETIC RESONANCE SYSTEM FOR MAGNETIC RESONANCE THERMOMETRY - In magnetic resonance (MR) thermometry, first and second magnetic resonance data that are acquired sequentially, from which a phase shift is determined between a measurement phase and a reference phase. In a first region of an examined person, the measurement phase is determined from the second magnetic resonance data and the reference phase is determined from the first magnetic resonance data. In a second region of the examined person, both the reference phase and measurement phase are determined from the second magnetic resonance data. Techniques for reference-based magnetic resonance thermometry and reference-free magnetic resonance thermometry can be applied. | 09-25-2014 |
20140288348 | RADIOTHERAPY TREATMENT DEVICE COMPRISING IMAGE ACQUISITION DEVICE AND IRRADIATION DEVICE, AND RADIOTHERAPY METHOD - A radiotherapy treatment device comprising an image acquisition device, in particular a magnetic resonance device, an irradiation device comprising in particular a linear accelerator, and a patient positioning device having a patient positioning platform, wherein a movement device is provided for jointly moving the image acquisition device and the irradiation device between an irradiation position, in which a radiotherapeutic treatment of a patient located on the patient positioning platform is possible by means of the irradiation device, and an image acquisition position, in which an image acquisition of the patient located on the patient positioning platform is possible by means of the image acquisition device is provided. A radiotherapy method for treating an irradiation target in a patient by means of such a radiotherapy treatment device is also disclosed. | 09-25-2014 |
20140288409 | MAGNETIC RESONANCE DEVICE FOR SCANNING AN EXTREMITY OF A PATIENT - A magnetic resonance device for scanning an extremity of a patient, in particular a leg, comprising a housing and an extremity radiography unit containing an imaging region, into which the extremity can be introduced when patients situated outside the extremity radiography unit, in which case the extremity radiography unit is arranged along a horizontal transverse axis perpendicular to its longitudinal axis toward one side of the housing, in which case a magnet unit forming the extremity radiography unit is configured to be capable of pivoting around a horizontal pivot axis perpendicular to the longitudinal axis by means of a pivot mechanism at a certain angular interval located about a horizontal situation of the longitudinal axis is provided. | 09-25-2014 |
20140331407 | PATIENT SUPPORT APPARATUS - A patient support apparatus for supporting a patient on an examination table is provided. The patient support apparatus includes at least one chamber having at least one opening for supplying a filler, a connection unit for connecting the at least one chamber to a regulating unit, and the regulating unit for regulating a quantity of the filler within the at least one chamber. In an embodiment, the patient support apparatus has a pressure sensor for capturing a sensor value of a pressure, and a processing unit which is so designed as to compare the sensor value with a threshold value. | 11-13-2014 |
20140331408 | PATIENT SUPPORT APPARATUS - A patient support apparatus for supporting a patient on an examination table includes at least one chamber, a connection unit and a regulating unit. The at least one chamber has at least one opening for supplying a filler. The connection unit connects the at least one chamber to the regulating unit. The regulating unit regulates a quantity of the filler within the at least one chamber. | 11-13-2014 |
20150015258 | METHOD AND MAGNETIC RESONANCE APPARATUS TO DETERMINE A B1 PHASE MAP - In a method to determine a B1 phase map for at least two excitation modes of a radio-frequency coil arrangement of a magnetic resonance apparatus, the radio-frequency coil arrangement having multiple independently controllable transmission channels, and the B1 phase map describing, with spatial resolution, the phase of radio-frequency field this is generated in a respective excitation mode relative to a common reference phase map, first magnetic resonance data describing the phase change of a basic magnetic field of the magnetic resonance apparatus between a first echo time and a second echo time are acquired, and are evaluated to determine a spatially resolved Larmor frequency value that describes the deviation from a nominal Larmor frequency of the magnetic resonance apparatus. To correct raw phase maps derived from second magnetic resonance data acquired using a respective one of the excitation modes, a correction map, determined relative to the reference phase map, is calculated and subtracted from the raw phase map under consideration of the Larmor frequency value and the echo times in the acquisition of the second magnetic resonance data. | 01-15-2015 |
20150077115 | METHOD AND COMPUTER TO DETERMINE A B0 FIELD MAP WITH A MAGNETIC RESONANCE APPARATUS - In a method to determine a B0 field map describing the local deviation of a nominal Larmor frequency of a magnetic resonance apparatus, wherein magnetic resonance data are acquired in measurements implemented at two different echo times whose difference forms a dephasing time after an excitation at at least two different dephasing times, and a phase change to be used to determine the B0 field map is determined from a difference of phases measured at different echo times, the phase changes of different dephasing times are evaluated to at least partially reduce an ambiguity due to a Nyquist phase wrapping, by using dephasing times that result as a quotient or, given the use of only two dephasing times, as a product, of a base time and a respective prime number from a group including at least two different prime numbers that are greater than one, and wherein the group is selected depending on a desired dynamic range of the B0 field map and/or a maximum tolerated measurement error for the measurements. | 03-19-2015 |