Title:
FAT-SUPPRESSED BLACK-BLOOD MAGNETIC RESONANCE IMAGING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/169671
Kind Code:
A1
Abstract:
A fat-suppressed black-blood magnetic resonance imaging method, comprising: emitting a excitation signal, the excitation signal comprising: a sequence of 90°x, 180°y, and 90°x radio frequency pulses, two motion-sensitive gradient magnetic fields (1) that are the same, and a de-noising gradient magnetic field (2); applying one motion-sensitive gradient magnetic field between a first 90°x pulse and the 180°y pulse, and applying the other motion-sensitive gradient magnetic field between the 180°y pulse and a second 90°x pulse; applying the two motion-sensitive gradient magnetic fields symmetrically with the 180°y pulse; applying the de-noising gradient magnetic field after the sequence of the 90°x, 180°y, and 90°x radio frequency pulses; setting, to a signal zero point of adipose tissue, a delay after the sequence of the 90°x, 180°y, and 90°x radio frequency pulses; and collecting electromagnetic wave signals. The described method may reduce sensitivity to the magnetic field non-uniformity, thereby improving the fat suppression effect; and at the same time, a specific absorption rate of an MSDE pulse sequence may be reduced.
Inventors:
WANG CHAO (CN)
LUO HAI (CN)
WU ZIYUE (CN)
ZHU GAOJIE (CN)
ZHOU XIANG (CN)
CHEN MEINING (CN)
LIU XIA (CN)
LUO HAI (CN)
WU ZIYUE (CN)
ZHU GAOJIE (CN)
ZHOU XIANG (CN)
CHEN MEINING (CN)
LIU XIA (CN)
Application Number:
PCT/CN2018/080007
Publication Date:
September 12, 2019
Filing Date:
March 22, 2018
Export Citation:
Assignee:
ALLTECH MEDICAL SYSTEMS LLC (CN)
International Classes:
G01R33/48
Domestic Patent References:
| WO2008044501A1 | 2008-04-17 |
Foreign References:
| CN102551721A | 2012-07-11 | |||
| CN103110420A | 2013-05-22 | |||
| CN103502832A | 2014-01-08 | |||
| CN103976735A | 2014-08-13 | |||
| US7027853B2 | 2006-04-11 | |||
| JP2005192700A | 2005-07-21 |
Attorney, Agent or Firm:
GAOYUNG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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