Hitachi, Ltd.

Fujifilm Corporation

Fujifilm Healthcare Corporation

Kenta Sakuragi

Hisako Nagao

Masaharu Ono

Masahiro Takizawa

Hisaaki Ochi

Hideta Habara

Suguru Yokosawa

Yoshimi Noguchi

Kuniaki Harada

Chikako Moriwake

Kentaroh Sunaga

Automatically performing a serial examination flow including, for example, positioning, imaging, and post processing enables reducing a burden placed on the user by a manual operation and improving examination efficiency. A magnetic resonance imaging apparatus includes a computation unit that performs action control of the entire apparatus and computation and an imaging unit that performs imaging according to control performed by the computation unit, wherein the computation unit includes a storage unit that stores a plurality of examination flow data each defining a processing flow of at least one of imaging processing, post processing, display processing, and transfer processing, and stores a plurality of keywords respectively indicating contents of at least a part of the examination flow data, an input unit that receives an input instruction issued by a user for executing a desired examination, and an examination flow control unit that selects the examination flow data corresponding to the input instruction and causes processing defined by the selected examination flow data to be performed.

Magnetic resonance imaging apparatus and control program for magnetic resonance imaging apparatus

An imaging unit of an MRI apparatus performs imaging of a positioning image of a subject including a spine; a first imaging that images a cross section including the spine and extending along a longitudinal direction of the spine; and a second imaging that images a cross section in a direction of traversing the spine. An automatic cross-section position setting unit detects a specific tissue of the spine using a scout image or an image including the spine acquired in the first imaging step, performs a matching process between the detected specific tissue of the spine and a spine model, and calculates an imaging cross-section position of the second imaging based upon a specific tissue position of the spine specified by matching, thereby performing automatic setting.

Magnetic resonance imaging apparatus with auto-positioning function, method for controlling magnetic resonance imaging apparatus, and program for auto-setting of imaging plane

The magnetic resonance imaging apparatus includes: a calculation means for calculating the amount of absorption of electromagnetic waves into the object according to the emission of RF pulses in a part of the object or a bed position where imaging is scheduled; a means for setting imaging conditions, in which the calculated amount of absorption satisfies conditions of the specified value of the amount of absorption of electromagnetic waves, from the relationship between the calculated amount of absorption and the specified value of the amount of absorption of electromagnetic waves; and a bed control device that controls a top plate according to the set imaging conditions.

Magnetic resonance imaging apparatus and control method therefor

In order to provide a magnetic resonance imaging apparatus capable of calculating the amount of absorption of electromagnetic waves into the object with high accuracy, the magnetic resonance imaging apparatus includes: a calculation means for calculating the amount of absorption of electromagnetic waves into the object upon the emission of RF pulses in a part of the object or a bed position where imaging is scheduled; a means for setting imaging conditions, in which the calculated amount of absorption satisfies conditions of the specified value of the amount of absorption of electromagnetic waves, from the relationship between the calculated amount of absorption and the specified value of the amount of absorption of electromagnetic waves; and a bed control device that controls a top plate according to the set imaging conditions.

Magnetic resonace imaging apparatus and control method therefor

A radiofrequency antenna has a plurality of channels. A Q-value calculating unit computes reflected signals of the plurality of channels of the radiofrequency antenna, respectively, in a case where transmission signals as electrical signals are simultaneously supplied to the plurality of channels of the radiofrequency antenna, also including a signal obtained when the transmission signal supplied to one channel of the plurality of channels is reflected from another channel, and computes a Q value of the radiofrequency antenna using the reflected signal. An SAR calculating unit calculates a specific absorption rate (SAR) using the Q value.

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Tokyo, Japan

Kenta Sakuragi