US Patent No: 6,169,398

Number of patents in Portfolio can not be more than 2000

Magnetic resonance imaging apparatus and imaging method

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The MRI apparatus of the present invention performs a pulse sequence for applying successively 180.degree. pulses 102, 103 . . . after application of a 90.degree. pulse 101 at constant intervals and applying readout magnetic fields 111 during the interval between pairs of 180.degree. pulses while the polarity of the magnetic field 111 is inverted several times to collect a plurality of gradient echo signals that are phase encoded differently. Here, the application of the readout gradient magnetic field is controlled such that generation of the gradient echo signals does ot coincide with generation of the spin echo signal. The image reconstruction is performed by using only T2* weighted gradient echo signals to obtain images reflecting difference in magnetic susceptibility and inhomogeneities in local magnetic fields.

Loading the Abstract Image... loading....

First Claim

See full text

all claims..

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
HITACHI MEDICAL CORPORATIONTOKYO913

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takahashi, Tetsuhiko Saitama, JP 121 714
Watanabe, Shigeru Saitama, JP 179 936

Cited Art Landscape

Patent Info (Count) # Cites Year
 
KABUSHIKI KAISHA TOSHIBA (1)
5,779,636 Method of echo volume imaging and MRI system using the same 13 1995

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC (3)
6,703,834 Systems and methods for correcting phase errors 3 2002
6,940,280 Systems and methods for manipulating changes in phase encodes 2 2002
6,771,069 Systems and methods for achieving a recovery of spins of nuclei 1 2002
 
HITACHI MEDICAL CORPORATION (2)
7,877,129 Magnetic resonance imaging apparatus and RF reception coil apparatus 1 2002
8,466,679 Magnetic resonance imaging apparatus and method configured for susceptibility-emphasized imaging with improved signal-to-noise ratio 0 2008
 
SIEMENS AKTIENGESELLSCHAFT (1)
7,501,821 Method for determination of the transverse relaxation time T2* in MR data 0 2006
 
Other [Check patent profile for assignment information] (1)
7,567,693 Methods for physiological monitoring training, exercise and regulation 6 2005