Magnetic resonance imaging apparatus and magnetic resonance imaging method

A technology of magnetic resonance imaging and equipment, which is applied in magnetic resonance measurement, measurement using nuclear magnetic resonance imaging system, and analysis using nuclear magnetic resonance, etc. Image quality, the effect of enhancing imaging efficiency

Inactive Publication Date: 2008-09-10
GE MEDICAL SYST GLOBAL TECH CO LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, there may be cases where imaging cannot be efficiently performed and difficulty occurs in increasing imaging efficiency

Method used

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  • Magnetic resonance imaging apparatus and magnetic resonance imaging method
  • Magnetic resonance imaging apparatus and magnetic resonance imaging method
  • Magnetic resonance imaging apparatus and magnetic resonance imaging method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0044] A first embodiment will be described according to the present invention.

[0045]

[0046] figure 1 is a block diagram showing the configuration of the magnetic resonance imaging apparatus 1 according to the first embodiment of the present invention.

[0047] like figure 1 As shown in , the magnetic resonance imaging apparatus 1 of this embodiment has a scanning part 2 and an operation console part 3 .

[0048] Scanning section 2 will be described.

[0049] like figure 1 As shown in , the scanning part 2 has a static field magnet unit 12 , a gradient coil unit 13 , an RF coil unit or part 14 , a carriage 15 , an RF driver 22 , a gradient driver 23 and a data acquisition unit 24 . Here, the scanning section 2 executes an imaging sequence IS for transmitting an RF pulse to the subject SU so that spins in the subject SU are excited in the imaging space B formed with a static magnetic field, and transmits a gradient pulse to the subject SU that has been subjected to t...

no. 2 example

[0125] A second embodiment according to the present invention will be described below.

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Abstract

The invention relates to a magnetic resonance imaging apparatue and magnetic resonance imaging method. With the objective of generating an imaging area including fluid with desired image quality at a subject and enhancing image quality, a first inversion recovery pulse is transmitted so as to invert spins in a second subject region which includes a first subject region used as the imaging area and is broader than the first subject region, before execution of a pulse sequence corresponding to an FSE method at every TR in an imaging sequence. After the execution of the pulse sequence corresponding to the FSE method, a second refocus pulse is transmitted so as to cause spins in a third subject region including the first subject region and wider than the first subject region to reconverge. A fast recovery pulse is transmitted to selectively recover spins in the first subject region. Thereafter, a second inversion recovery pulse is transmitted so as to invert the spins in the second subject region.

Description

technical field [0001] The present invention relates to a magnetic resonance imaging (MRI) apparatus and a magnetic resonance imaging method. In particular, the present invention relates to a magnetic resonance imaging apparatus and a magnetic resonance imaging method that perform scanning to repeatedly perform scanning, including the corresponding Imaging sequence of a pulse sequence of the fast spin echo (FSE) method that sequentially emits excitation pulses corresponding to RF (radio frequency) pulses with a flip angle of 90°, and each corresponding to an RF pulse with a flip angle of 180° A plurality of refocusing pulses of RF pulses, thereby obtaining magnetic resonance signals generated in an imaging region including a fluid of a subject, and generating an image about the imaging region based on the magnetic resonance signals obtained by performing the scan. Background technique [0002] Magnetic resonance imaging apparatuses have been used in various fields involving...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/055G01N24/08G01R33/48
CPCG01R33/5602G01R33/5607G01R33/5617G01R33/5635A61B5/055
Inventor 三好光晴
Owner GE MEDICAL SYST GLOBAL TECH CO LLC
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