Siemens Aktiengesellschaft

Harald Werthner

Thorsten Feiweier

Ralf Ladebeck

Josef Pfeuffer

Diana Martin

Michael Szimtenings

Hartwig Newiger

Robert Krieg

Roland Faber

Disclosed is a method and apparatus for recording measured data from a patient by taking movements into account by use of a medical device designed both for recording motion-related measured data and for recording nuclear medicine measured data. The method may include recording nuclear medicine measured data by use of the medical device, simultaneously recording motion-related measured data by use of the medical device, determining at least one motion information item relating to at least one movement of the patient and/or at least one movement inside the body of the patient during the ongoing measured data recording by evaluating at least a portion of the previously recorded motion-related measured data, and carrying out motion correction for at least a portion of the nuclear medicine measured data by use of the computational device in parallel with recording the measured data.

Method for recording measured data from a patient by taking movements into account, and associated medical device

A method is disclosed for recording measured data of a patient while taking account of movement operations by way of a medical device that is designed both for recording movement-related measured data, in particular measured data of high temporal resolution and/or measured data that can be interpolated with regard to movement operations, with the aid of an imaging method and/or by means of at least one sensor element, and also for recording nuclear medicine measured data, in particular of lower temporal resolution. In at least one embodiment, the method includes recording nuclear medicine measured data with the aid of the medical device; simultaneously recording movement-related measured data with the aid of the medical device; determining at least one item of movement information relating to at least one movement operation of the patient and/or in the body of the patient by evaluating at least a portion of the recorded measured data of high temporal resolution on the part of a computing device of the medical device; and adapting at least one item of attenuation correction information available for the computing device and serving for reconstructing the nuclear medicine measured data, doing so as a function of the at least one determined item of movement information.

Method for recording measured data of a patient while taking account of movement operations, and an associated medical device

A method for carrying out magnetic resonance measurements on an examination object in a magnetic resonance system is described. In at least one embodiment, a magnetic resonance image of the examination object previously acquired via the magnetic resonance system is used to determine spatial coordinates in order to control the magnetic resonance system for the magnetic resonance measurement to be carried out. In this case, in order to determine the spatial coordinates, use is made of a distortion-corrected magnetic resonance image generated on the basis of an original magnetic resonance measured image acquired by the magnetic resonance system and transformed in advance into an equivalent measured image on the basis of field inhomogeneity values of the magnetic resonance system.

Method for transforming a distortion-corrected magnetic resonance image, method for carrying out magnetic resonance measurements, and image transformation unit

A method is disclosed for positioning a slice of a magnetic resonance measurement and allowing a graphic determination of the slice to be measured on the basis of a distortion-corrected magnetic resonance image. For this purpose, the coordinates of the slice to be measured are likewise distortion-corrected.

Method for positioning a slice of a magnetic resonance measurement

In a method for reconstructing a planar tomogram of an examination subject from magnetic resonance signals in inhomogeneous magnetic fields, original image elements are generated by means of multi-slice excitation, with the original image elements being disposed in the examination subject in several curved slices which are adjacent to one another in succession, the spatial position of the original image elements, are determined and image elements of a planar tomogram are generated from the original image elements which are arranged in an environment of the respective image elements.

Method for reconstructing a planar tomogram from magnetic resonance signals in an inhomogeneous magnetic fields

In a method in the form of a single pulse sequence for operating a nuclear magnetic resonance tomography apparatus, suitable for use with a chronologically constant inhomogeneity of the basic magnetic field N radio-frequency excitation pulses (N&lt;2), spaced with a time spacing T, are emitted onto an examination subject, under the effect of a magnetic field gradient in a first direction, the radio-frequency excitation pulses respectively having different frequency bands adjoining one another. Subsequently, radio-frequency refocusing pulses spaced with a time spacing of T/2 are emitted, with the nth radio-frequency excitation pulse and the nth radio-frequency refocusing pulse having respective frequency bands that substantially agree.

Method for operating an NMR tomography apparatus suitable for use with a

In a magnetic resonance imaging apparatus and method the following pulse sequence is repeated N times for acquiring image data. A first radio-frequency pulse is emitted for exciting nuclear spins, in an examination subject. A second radio-frequency pulse is emitted after a time span for rephasing the nuclear spins. Readout of the resulting nuclear magnetic resonance signal under a frequency-coding gradient takes place after a further time span following the second radio-frequency pulse. After waiting another time span, the first radio-frequency pulse of the next sequence is emitted. The pulse sequence is configured such that the nuclear magnetic resonance signals arising from the second radio-frequency pulse of the n-1.sup.th sequence and the first radio-frequency pulse of the following n.sup.th pulse sequence do not superimpose.

Growing community of inventors

Zirndorf, Germany

Harald Werthner