Abstract: Provided are a method of obtaining a water-fat separation image and a magnetic resonance imaging (MRI) apparatus including a controller configured to obtain first partial k-space data, second partial k-space data, and third partial k-space data, respectively based on a first partial echo signal, a second partial echo signal, and a third partial echo signal, which are magnetic resonance signals corresponding to a plurality of echo times with respect to an object, obtain first reconstruction image data, second reconstruction image data, and third reconstruction image data with respect to the object, respectively based on the first partial k-space data, the second partial k-space data, and the third partial k-space data, and obtain first water image data, first fat image data, and first phase image data of the object, respectively based on the first reconstruction image data, the second reconstruction image data, and the third reconstruction image data, by using a Dixon technique.

Abstract: Provided are a method of obtaining a water-fat separation image and a magnetic resonance imaging (MRI) apparatus including a controller configured to obtain first partial k-space data, second partial k-space data, and third partial k-space data, respectively based on a first partial echo signal, a second partial echo signal, and a third partial echo signal, which are magnetic resonance signals corresponding to a plurality of echo times with respect to an object, obtain first reconstruction image data, second reconstruction image data, and third reconstruction image data with respect to the object, respectively based on the first partial k-space data, the second partial k-space data, and the third partial k-space data, and obtain first water image data, first fat image data, and first phase image data of the object, respectively based on the first reconstruction image data, the second reconstruction image data, and the third reconstruction image data, by using a Dixon technique.

Abstract: Provided is a method of acquiring magnetic resonance (MR) image with respect to an object including a blood vessel by using a three-dimensional (3D) gradient echo sequence, the method including: acquiring k space data with respect to the object based on the 3D gradient echo sequence; and acquiring the MR image with respect to the object based on the acquired k space data, wherein the acquiring of the k space data includes acquiring the k space data based on the 3D gradient echo sequence having a TR (repetition time) that varies according to a value of at least one of a first axis or a second axis of the k space of the k space data.

Abstract: A magnetic resonance imaging (MRI) apparatus for obtaining a magnetic resonance (MR) image using a multi-echo pulse sequence including a plurality of repetition times, including a memory configured to store an MR signal obtained using the multi-echo pulse sequence, and an image processor configured to determine a plurality of echo times included in the plurality of repetition times to provide the multi-echo pulse sequence including the plurality of echo times during the plurality of repetition times, and to obtain the MR image, based on the MR signal, wherein the plurality of repetition times includes a first repetition time adjacent to a second repetition time, wherein the plurality of echo times includes a first echo time of the first repetition time, a second echo time of the first repetition time, a first echo time of the second repetition time, and a second echo time of the second repetition time.

Abstract: A magnetic resonance imaging apparatus includes a radio frequency (RF) controller configured to, during a repetition time (TR) period among TR periods, apply at least one RF pulse corresponding to a first slice to an object, and apply a navigator RF pulse corresponding to a second slice adjacent to the first slice to the object, a data obtainer configured to, during the TR period, obtain first k-space data corresponding to the applied at least one RF pulse, and obtain second k-space data corresponding to the applied navigator RF pulse, and an image processor configured to generate navigator images, based on pieces of second k-space data that are obtained during the TR periods, the pieces comprising the second k-space obtained during the TR period, correct the first k-space data, based on the navigator images, and generate a magnetic resonance image of the first slice, based on the corrected first k-space data.

Abstract: A method, which is performed by an MRI apparatus, of scanning a blood vessel, includes: sequentially applying, according to a time-of-flight (TOF) method, radio frequency (RF) pulses respectively to first grouped slabs during a first repetition time (TR); sequentially acquiring MR signals respectively corresponding to the RF pulses applied during the first TR; sequentially applying, according to the TOF method, RF pulses respectively to second grouped slabs during a second TR; and sequentially acquiring MR signals respectively corresponding to the RF pulses applied during the second TR.

Abstract: Provided are a magnetic resonance imaging (MRI) apparatus and a method of processing an MR image. The MRI apparatus includes an MR signal receiver receiving an MR signal emitted from the object, and a processor configured to obtain k-space blades from the MR signal according to a periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) method, to obtain centroid data of the k-space blades, and to determine whether to reconstruct an MR image of the object.

Abstract: A method and apparatus for acquiring a magnetic resonance (MR) signal are provided. The method includes: applying one radio frequency (RF) excitation pulse to a region of interest that has undergone a frequency shift by injecting a contrast agent into an object; acquiring a plurality of echo signals at a plurality of different echo times based on phase differences among water, fat, and the region of interest; and separating, based on the acquired plurality of echo signals, MR signals respectively originating from the water, the fat, and the region of interest.

Abstract: A magnetic resonance imaging (MRI) apparatus for obtaining a magnetic resonance (MR) image using a multi-echo pulse sequence including a plurality of repetition times, including a memory configured to store an MR signal obtained using the multi-echo pulse sequence, and an image processor configured to determine a plurality of echo times included in the plurality of repetition times to provide the multi-echo pulse sequence including the plurality of echo times during the plurality of repetition times, and to obtain the MR image, based on the MR signal, wherein the plurality of repetition times includes a first repetition time adjacent to a second repetition time, wherein the plurality of echo times includes a first echo time of the first repetition time, a second echo time of the first repetition time, a first echo time of the second repetition time, and a second echo time of the second repetition time.

Abstract: A workstation, a medical imaging apparatus and a control method thereof are disclosed. In accordance with one aspect of the present disclosure, the workstation includes a display apparatus and a controller configured to receive respiration information of an object, determine an acquisition section of magnetic resonance (MR) data related to the object based on the respiration information. The controller is also configured to control the display apparatus to display the respiration information of the object and the acquisition section, and display a user interface configured to change the displayed acquisition section according to a user's operation command.

Abstract: A magnetic resonance imaging apparatus includes a radio frequency (RF) controller configured to, during a repetition time (TR) period among TR periods, apply at least one RF pulse corresponding to a first slice to an object, and apply a navigator RF pulse corresponding to a second slice adjacent to the first slice to the object, a data obtainer configured to, during the TR period, obtain first k-space data corresponding to the applied at least one RF pulse, and obtain second k-space data corresponding to the applied navigator RF pulse, and an image processor configured to generate navigator images, based on pieces of second k-space data that are obtained during the TR periods, the pieces comprising the second k-space obtained during the TR period, correct the first k-space data, based on the navigator images, and generate a magnetic resonance image of the first slice, based on the corrected first k-space data.

Abstract: A method, which is performed by an MRI apparatus, of scanning a blood vessel, includes: sequentially applying, according to a time-of-flight (TOF) method, radio frequency (RF) pulses respectively to first grouped slabs during a first repetition time (TR); sequentially acquiring MR signals respectively corresponding to the RF pulses applied during the first TR; sequentially applying, according to the TOF method, RF pulses respectively to second grouped slabs during a second TR; and sequentially acquiring MR signals respectively corresponding to the RF pulses applied during the second TR.

Abstract: A method for generating an image by using a medical imaging apparatus includes acquiring first slab data which relates to a first imaging slab, acquiring second slab data which relates to a second imaging slab at a position which is different from a position of the first imaging slab, and generating a restored image by using data from among the acquired first slab data and data from among the acquired second slab data in slices which correspond to a same position on an object.

Abstract: A medical diagnostic apparatus includes a data obtainer, which obtains an image frame included in a region to be imaged; and a data processor, which processes the obtained frame and obtains a medical image. The data obtainer includes a composite image generator, which generates a composite image by using the image frame; and a medical image obtainer, which compensates the composite image by using the image frame and boundary conditions corresponding to image signals included in the composite image and obtains the medical image by using the compensated composite image.

Abstract: A method for a parallel image reconstruction is disclosed. The method includes (a) acquiring image information by channel via parallel coils in a magnetic resonance imaging (MRI) scanner; (b) extracting low-frequency signals from the image information; (c) reconstructing low-frequency images from the low-frequency signals; (d) generating filter banks by using the low-frequency images; and (f) reconstructing a final image by using the filter banks. The generating of the filter banks includes separately generating low-frequency image information for reconstruction of magnitude information and low-frequency image information for reconstruction of phase information, and then separately generating a filter for reconstruction of the magnitude information and a filter for reconstruction of the phase information.

Abstract: A method of measuring a blood flow velocity of blood flowing in an object includes obtaining first slab data of a first imaging slab to which a first bipolar gradient is applied, obtaining second slab data of a second imaging slab to which a second bipolar gradient is applied, the second imaging slab being moved to a location different from a location of the first imaging slab, and calculating the blood flow velocity based on data included in slices of the first slab data and slices of the second slab data, the slices of the first slab data being located at a same location as the slices of the second slab data on the object.

Abstract: A method for generating an image by using a medical imaging apparatus includes acquiring first slab data which relates to a first imaging slab, acquiring second slab data which relates to a second imaging slab at a position which is different from a position of the first imaging slab, and generating a restored image by using data from among the acquired first slab data and data from among the acquired second slab data in slices which correspond to a same position on an object.

Abstract: A method for a parallel image reconstruction is disclosed. The method includes (a) acquiring image information by channel via parallel coils in a magnetic resonance imaging (MRI) scanner; (b) extracting low-frequency signals from the image information; (c) reconstructing low-frequency images from the low-frequency signals; (d) generating filter banks by using the low-frequency images; and (f) reconstructing a final image by using the filter banks. The generating of the filter banks includes separately generating low-frequency image information for reconstruction of magnitude information and low-frequency image information for reconstruction of phase information, and then separately generating a filter for reconstruction of the magnitude information and a filter for reconstruction of the phase information.

Abstract: A medical diagnostic apparatus includes a data obtainer, which obtains an image frame included in a region to be imaged; and a data processor, which processes the obtained frame and obtains a medical image. The data obtainer includes a composite image generator, which generates a composite image by using the image frame; and a medical image obtainer, which compensates the composite image by using the image frame and boundary conditions corresponding to image signals included in the composite image and obtains the medical image by using the compensated composite image.