摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A method for tracking a needle along a path under real-time magnetic resonance imaging (MRI) guidance includes extracting a candidate needle artifact region from a plurality of incoming MR images of a needle inside biological tissue, determining an initial needle direction vector from the candidate needle artifact region in each of the plurality of incoming needle images, determining an initial needle base point from an intersection of the needle direction vector with a first incoming needle image, and an initial needle tip point from an intersection of the needle direction vector with a last incoming needle image, and tracking said needle by minimizing a cost function of the initial base point and initial direction vector to calculate an updated base point and updated direction vector. The updated base point and direction vector are used to visualize the advance of the needle along the path through the biological tissue.
摘要:
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.
摘要:
A magnetic resonance tomograph and a method for tracking a marker in an examination subject by a magnetic resonance tomograph are disclosed. The magnetic resonance tomograph includes a first image recording mode for acquiring the position of the marker. In one act of the method, data for acquiring the position of the marker is recorded with the first image recording mode. In a further act, a position of the marker is determined from the data and a first image with a location-accurate reproduction of the marker is prepared. The recording of the data for acquiring the position of the marker takes place depending on an event.
摘要:
In a method and imaging apparatus to automatically determine imaging planes for an imaging procedure to visualize a percutaneous intervention of a patient along a trajectory to a target point, data are obtained that represent a reference coordinate system with three orthogonal reference planes, and data also are acquired that represent the trajectory. One of the reference planes is determined as a selected reference plane based on the arrangement thereof relative to the trajectory. A first imaging plane is defined such that the trajectory lies therein, and such that it has a defined arrangement in relation to the selected reference plane. A second imaging plane is defined such that the trajectory lies therein, and such that it is orthogonal to the first imaging plane. A third imaging plane is defined such that it is orthogonal to the first imaging plane and second imaging plane, and includes the target point.
摘要:
In a method and magnetic resonance apparatus to assist a person in the alignment of a medical instrument used by the person to conduct a minimally invasive procedure with the instrument introduced into a patient at an entrance point in a predetermined orientation, within the patient receptacle of a magnetic resonance device, measurement data are acquired with the magnetic resonance device to determine a current orientation of the instrument and/or an instrument guide, and the measurement data are evaluated to determine the current orientation. A deviation of the current orientation from the predetermined orientation is determined, and at least one acoustic signal is emitted depending on the deviation to assist the person in orienting the instrument.