US Patent No: 8,193,810

Number of patents in Portfolio can not be more than 2000

MRI apparatus with RF surface coil having at least three resonance frequencies

ALSO PUBLISHED AS: 20090128155

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Abstract

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An RF coil having at least three different resonance frequencies, wherein one of the resonance frequencies is adjusted to be a frequency fA of a magnetic resonance signal generated by a test subject, and the coil is adjusted so that ratio of difference between the frequency fA and a first frequency fB lower than fA and nearest to fA among the resonance frequencies (fA−fB), and difference between the frequency fA and a second resonance frequency fC higher than fA and nearest to the frequency fA among the resonance frequencies (fC−fA), should be from 0.5 to 2.0. There is provided a technique for receiving magnetic resonance signals always with high detection efficiency by an RF coil of an MRI apparatus even if significant loss is caused in the RF coil, or test subject is changed.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HITACHI, LTD.TOKYO31401

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bito, Yoshitaka Kokubunji, JP 80 152
Hirata, Koji Yokohama, JP 348 881
Otake, Yosuke Hachioji, JP 12 6
Soutome, Yoshihisa Kokubunji, JP 37 36

Cited Art Landscape

Patent Info (Count) # Cites Year
 
HITACHI, LTD. (5)
6,828,791 Nuclear magnetic resonance apparatus probe having a solenoid coil and a saddle coil and nuclear magnetic resonance apparatus probe using the same 11 2002
7,084,634 Nuclear magnetic resonance apparatus probe 4 2004
7,138,802 Nuclear magnetic resonance apparatus probe 4 2006
2007/0285,096 Double-tuned RF coil 5 2007
2009/0128,155 RF coil and MRI apparatus 1 2008
 
AGILENT TECHNOLOGIES, INC. (3)
6,590,394 NMR probe with enhanced power handling ability 31 2001
2006/0017,438 Multiple tuned scroll coil 13 2004
7,081,753 Multiple tuned scroll coil 19 2004
 
FOX CHASE CANCER CENTER (2)
5,212,450 Radio frequency volume resonator for nuclear magnetic resonance 31 1990
5,202,635 Radio frequency volume resonator for nuclear magnetic resonance 24 1991
 
THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA (1)
5,243,289 Multiply-tuned probe for magnetic resonance imaging or spectroscopy 24 1991
 
THE UNIVERSITY OF QUEENSLAND (1)
7,446,528 Coil array for magnetic resonance imaging 8 2003
 
Other [Check patent profile for assignment information] (1)
6,081,120 Universal-multi-layered, multi-tuned RF probe for MRI and MRS 16 1998

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