Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a processor. The processor acquires age information representing the length of time elapsed from the birth of a subject. The processor also outputs a parameter of a pulse sequence for imaging an image of the subject, in a manner suitable for the magnetization relaxation characteristic of the subject, the magnetization relaxation characteristic being based on the acquired age information and relaxation characteristic information. The relaxation characteristic information includes mapping of the age information and the magnetization relaxation characteristic.

Abstract: An MRI apparatus includes a processing circuitry that executes a pulse sequence by which a data acquiring process is repeatedly performed multiple times where data is acquired every time each of waiting periods has elapsed since a tag pulse used for labeling a fluid flowing into an image taking region of a patient is applied, that acquires, at at least one time among the multiple times, data corresponding to one region by using a three-dimensional sequence, out of three-dimensional data acquired while being divided into regions, during each of the data acquiring processes corresponding to a first waiting period among the waiting periods, and that acquires data allocated to the one time by using a two-dimensional sequence, out of a slice of two-dimensional data corresponding to the entire three-dimensional data, during each of the data acquiring processes corresponding to a second waiting period different from the first waiting period.

Abstract: A magnetic resonance imaging apparatus according to an embodiment includes sequence control circuitry and processing circuitry. The sequence control circuitry executes a first pulse sequence to acquire multiple sets of data with different echo times (TEs), the first pulse sequence being a pulse sequence of an ultrashort echo time (UTE) imaging technique and being a multi-echo pulse sequence. The processing circuitry derives a value of a TE (Echo Time) in a second pulse sequence executed by the sequence control circuitry based on the multiple sets of data.

Abstract: In one embodiment, an MRI apparatus (20) includes “a temperature measuring unit (70A to 70D) performing temperature measurement of a gradient magnetic field coil unit (26)”, a data storing unit (100), a pulse setting unit (102), and an imaging unit. The data storing unit stores the first and second data indicating a shift of a center frequency of magnetic resonance of hydrogen atoms. The first data corresponds to a case of temperature rise of the gradient magnetic field coil unit, and the second data corresponds to a case of temperature fall of that. The pulse setting unit corrects a center frequency of an RF pulse by calculating an estimated shift of the center frequency based on data corresponding to result of the temperature measurement out of the first and second data. The imaging unit performs magnetic resonance imaging based on the corrected RF pulse.

Abstract: A magnetic resonance imaging apparatus according to an embodiment includes sequence control circuitry and processing circuitry. The sequence control circuitry executes a first pulse sequence to acquire multiple sets of data with different echo times (TEs), the first pulse sequence being a pulse sequence of an ultrashort echo time (UTE) imaging technique and being a multi-echo pulse sequence. The processing circuitry derives a value of a TE (Echo Time) in a second pulse sequence executed by the sequence control circuitry based on the multiple sets of data.

Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes an imaging condition setting unit and an imaging unit. The imaging condition setting unit is configured to set slice positions same as past slice positions to a same object and to set a table position of a bed with the object set to position a position representing a slice position designated out of the slice positions or a position representing a slice range designated out of the slice positions on a center of a magnetic field. The imaging unit is configured to acquire magnetic resonance data from the slice positions set for the object at the table position of the bed to generate image data corresponding to the slice positions based on the acquired magnetic resonance data.

Abstract: A magnetic resonance imaging apparatus of an embodiment includes: an imaging condition setting section configured to set an imaging condition for a main scan, a preparatory scan performing section configured to repeat a preparatory scan to be performed by the use of the imaging condition for a main scan and a changeably inputted center frequency so as to generate a preparatory image in real time, a display section on which the preparatory image can be displayed in real time, an optimum center frequency setting section configured to change the center frequency so as to change a situation in which a banding artifact appears and configured to set an optimum center frequency according to a user operation based on an observation of the preparatory image, and a main scan performing section configured to reconstruct an image for a diagnosis by using the optimum center frequency having been set.

Abstract: The MRI apparatus includes an image generating unit, an area setting unit, a slice condition determining unit and an imaging executing unit. The image generating unit images an object at a predetermined imaging position, and generates an image for positioning. The area setting unit sets a slab area and a slice area on a basis of a recommended value that is stored in a storage and corresponds to the predetermined imaging position, and to display the set slab area and the set slice area on the image for positioning, the storage storing the recommended value of a parameter concerning a slice condition for each of a plurality of imaging positions. The slice condition determining unit determines the slice condition on a basis of the slice area. The imaging executing unit executes an imaging of the slab area in accordance with the determined slice condition.

Abstract: An MRI apparatus includes a processing circuitry that executes a pulse sequence by which a data acquiring process is repeatedly performed multiple times where data is acguired every time each of waiting periods has elapsed since a tag pulse used for labeling a fluid flowing into an image taking region of a patient is applied, that acquires, at at least one time among the multiple times, data corresponding to one region by using a three-dimensional sequence, out of three-dimensional data acquired while being divided into regions, during each of the data acquiring processes corresponding to a first waiting period among the waiting periods, and that acquires data allocated to the one time by using a two-dimensional sequence, out of a slice of two-dimensional data corresponding to the entire three-dimensional data, during each of the data acquiring processes corresponding to a second waiting period different from the first waiting period.

Abstract: A magnetic resonance imaging apparatus of an embodiment includes: an imaging condition setting section configured to set an imaging condition for a main scan, a preparatory scan performing section configured to repeat a preparatory scan to be performed by the use of the imaging condition for a main scan and a changeably inputted center frequency so as to generate a preparatory image in real time, a display section on which the preparatory image can be displayed in real time, an optimum center frequency setting section configured to change the center frequency so as to change a situation in which a banding artifact appears and configured to set an optimum center frequency according to a user operation based on an observation of the preparatory image, and a main scan performing section configured to reconstruct an image for a diagnosis by using the optimum center frequency having been set.

Abstract: In one embodiment, an MRI apparatus (20) includes “a temperature measuring unit (70A to 70D) performing temperature measurement of a gradient magnetic field coil unit (26)”, a data storing unit (100), a pulse setting unit (102), and an imaging unit. The data storing unit stores the first and second data indicating a shift of a center frequency of magnetic resonance of hydrogen atoms. The first data corresponds to a case of temperature rise of the gradient magnetic field coil unit, and the second data corresponds to a case of temperature fall of that. The pulse setting unit corrects a center frequency of an RF pulse by calculating an estimated shift of the center frequency based on data corresponding to result of the temperature measurement out of the first and second data. The imaging unit performs magnetic resonance imaging based on the corrected RF pulse.

Abstract: The MRI apparatus includes an image generating unit, an area setting unit, a slice condition determining unit and an imaging executing unit. The image generating unit images an object at a predetermined imaging position, and generates an image for positioning. The area setting unit sets a slab area and a slice area on a basis of a recommended value that is stored in a storage and corresponds to the predetermined imaging position, and to display the set slab area and the set slice area on the image for positioning, the storage storing the recommended value of a parameter concerning a slice condition for each of a plurality of imaging positions. The slice condition determining unit determines the slice condition on a basis of the slice area. The imaging executing unit executes an imaging of the slab area in accordance with the determined slice condition.

Abstract: A magnetic resonance imaging system detects a magnetic resonance signal generated from a sample, repeatedly acquires data on the detected magnetic resonance signal in an imaging period and arranges the acquired data in k space. The data is acquired in one acquisition pattern of a plurality of different acquisition patterns, which are determined so that an acquisition frequency of data in some areas of k space is different from that in the other areas of k space. An image of the sample is repeatedly reconstructed based on the acquired data and arranged in the k space. The acquisition is controlled to change the acquisition pattern during the imaging period.

Abstract: A magnetic resonance imaging system is provided which includes detection means for detecting a magnetic resonance signal generated from a sample, acquisition means for repeatedly acquiring data on the magnetic resonance signal detected by the detection means in an imaging period and arranging the acquired data in a k space, wherein the acquisition means acquires the data in one acquisition pattern of a plurality of different acquisition patterns, which are determined so that an acquisition frequency of data in some areas of the k space is different from that in the other areas of the k space, reconstruction means for repeatedly reconstructing an image of the sample on the basis of the data acquired by the acquisition means and arranged in the k space, and control means for controlling the acquisition means to change the acquisition pattern used by the acquisition means during the imaging period.