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MRI apparatus

A device, reverse pulse technology, used in medical science, diagnostics, instrumentation, etc.

Inactive Publication Date: 2009-09-02
GE MEDICAL SYST GLOBAL TECH CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The hope is to solve the problems described above

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  • MRI apparatus
  • MRI apparatus
  • MRI apparatus

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Embodiment Construction

[0009] The best mode of the present invention will be described in more detail with reference to the accompanying drawings. The invention is not limited to its best mode.

[0010] figure 1 It is an example of MRI (Magnetic Resonance Imaging, magnetic resonance imaging) equipment 1 . The MRI apparatus 1 is an example of the best mode for embodying the present invention.

[0011] The MRI apparatus 1 includes a magnet assembly 2 . The magnet piece 2 has a bore 3 for insertion of the main body 13 . The magnet piece 2 also includes a static magnetic field generating device 4 , a gradient coil 5 and a transmitting coil 6 .

[0012] The static magnetic field generator 4 generates a constant static magnetic field inside the hole 3 . The gradient coils 5 generate gradient magnetic fields in the bore 3 . Transmitting coil 6 transmits RF pulses to the interior of bore 3 .

[0013]The MRI apparatus 1 includes bellows 7 and a heartbeat sensor 8 .

[0014] The bellows pressure senso...

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Abstract

An MRI apparatus for imaging a subject so as to emphasize, more than a background tissue, a bodily fluid flowing through an imaging region of the subject, the apparatus includes a transmission coil for transmitting an RF pulse to the subject, a first transmission coil control device for controlling the transmission coil so that the transmission coil transmits a first inversion pulse for inverting longitudinal magnetization components of the bodily fluid and the background tissue to negative values from the positive values, a second transmission coil control device for controlling the transmission coil so that the transmission coil transmits a second inversion pulse for inverting the longitudinal magnetization component of the background tissue to the positive value from the negative value inverted by the first inversion pulse, a third transmission coil control device for controlling the transmission coil so that the transmission coil transmits a third inversion pulse for inverting the longitudinal magnetization component of the background tissue to the negative value from the positive value inverted by the second inversion pulse and a fourth transmission coil control device for controlling the transmission coil so that the transmission coil transmits an excitation pulse for acquiring data about the bodily fluid.

Description

technical field [0001] The present invention relates to MRI equipment for imaging body fluids. Background technique [0002] Conventionally, MRI equipment is used to image blood flowing in blood vessels. For example, time-SLIP technology is known as a method of imaging blood flow (see Non-Patent Document 1). [Non-Patent Document 1] Mitsue Miyazaki et al: Recent Development of Non-contrast-enhanced MR Angiography, Image Information Medical, Sangyo Kaihatsu Kiko Kabushiki Kaisha September 2006, pp. 952-957. [0003] The method described in Non-Patent Document 1 can narrow the range of rendered blood flow when imaging a patient with slow blood flow. Contents of the invention [0004] It would be desirable to solve the problems described above. [0005] In a first aspect, the present invention provides an MRI apparatus for imaging a subject to not only emphasize background tissue, but also to emphasize body fluids flowing through the imaging region of the subject, the ap...

Claims

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Application Information

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IPC IPC(8): A61B5/055
CPCG01R33/5635G01R33/4828A61B5/055G01R33/5602G01R33/5607
Inventor N·塔凯
Owner GE MEDICAL SYST GLOBAL TECH CO LLC