摘要:
A magnetic resonance imaging MRI) apparatus, including a signal transceiver; a controller configured to control the signal transceiver to apply a bipolar gradient magnetic field in an aortic direction, the aortic direction being a direction in which an aorta is disposed within an object; and an image processor configured to receive, from the signal transceiver, phase signal data obtained by applying the bipolar gradient magnetic field to the object, acquire motion data representing a first motion corresponding to a heartbeat of the object and a second motion corresponding to a respiration of the object based on the phase signal data, and acquire MRI data based on the motion data.
摘要:
A magnetic resonance imaging apparatus includes a gradient magnetic field controller which applies a spatial encoding gradient to a plurality of slices and applies a gradient magnetic field in a first direction with respect to the plurality of slices, a radio frequency (RF) receiver which receives respective magnetic resonance signals from each of the plurality of slices undersampled in a second direction different from the first direction, and an image processor which generates a respective magnetic resonance image of each of the plurality of slices based on the magnetic resonance signals received from the plurality of slices.
摘要:
An MRI apparatus includes a controller configured to acquire, based on a gradient echo sequence, an MR signal from an object; and an image processor configured to acquire a first image corresponding to a time point when the MR signal has a largest phase variation, acquire a second image corresponding to a time point when the MR signal has a smallest phase variation, and obtain an arterial image including an artery of the object by using the first image and the second image.
摘要:
The MRI apparatus includes a processor configured to apply a gradient echo pulse sequence that makes a sum of gradients applied during one repetition time (TR) in a slice selection direction, a phase encoding direction, and a frequency encoding direction equal zero and maintains spins in an object in a steady state; alternately apply, while the gradient echo pulse sequence is continuously applied, a first radio frequency (RF) pulse having a first flip angle and a second RF pulse having a second flip angle that is different from the first flip angle at each TR interval; and generate an MR image based on an echo signal acquired when the spins are in the steady state.
摘要:
An MRI apparatus includes a controller configured to acquire, based on a gradient echo sequence, an MR signal from an object; and an image processor configured to acquire a first image corresponding to a time point when the MR signal has a largest phase variation, acquire a second image corresponding to a time point when the MR signal has a smallest phase variation, and obtain an arterial image including an artery of the object by using the first image and the second image.
摘要:
The present disclosure relates to a method of measuring a blood flow velocity by a medical imaging apparatus. The method of measuring a blood flow velocity by the medical imaging apparatus according to the present disclosure comprises: a step of obtaining first slab data of a first imaging slab to which a first bipolar gradient is applied; a step of 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 position moved from a position of the first imaging slab in the set direction; and a step of measuring 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 corresponding at a same position as the slices of the second slab data on the object.
摘要:
A method of configuring a wireless connection of an image forming apparatus via near field communication (NFC) is provided. The method includes receiving, by the image forming apparatus, wireless configuration information and Internet protocol (IP) address configuration information from a mobile device when the mobile device is tagged by the image forming apparatus, performing, user authentication of the mobile device with respect to the image forming apparatus, establishing communication between the image forming apparatus and an access point (AP) based on the wireless configuration information, and assigning an IP address to the image forming apparatus based on the IP address configuration information.
摘要:
A method of configuring a wireless connection of an image forming apparatus via near field communication (NFC) is provided. The method includes receiving, by the image forming apparatus, wireless configuration information and Internet protocol (IP) address configuration information from a mobile device when the mobile device is tagged by the image forming apparatus, performing, user authentication of the mobile device with respect to the image forming apparatus, establishing communication between the image forming apparatus and an access point (AP) based on the wireless configuration information, and assigning an IP address to the image forming apparatus based on the IP address configuration information.
摘要:
An interface card for communicating with an external device, the interface card comprising a power supplier, a first volatile memory which is supplied with power in a sleep mode, a transmitter-receiver configured to transmit packet data to and receive packet data from the external device, a controller configured to transition the interface card into the sleep mode in response to the transmitter-receiver not receiving the packet data for a predetermined time during active-mode operations wherein the first volatile memory is selectively loaded with processor-executable instructions for active-mode operations or processor-executable instructions for sleep-mode operations, wherein the controller is configured to load the sleep-mode instructions into the first volatile memory upon transition into the sleep mode and to execute only the instructions for the sleep-mode operations loaded into the first volatile memory upon completing the transition into the sleep mode.