JP2008142479A5 - - Google Patents
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- JP2008142479A5 JP2008142479A5 JP2006336397A JP2006336397A JP2008142479A5 JP 2008142479 A5 JP2008142479 A5 JP 2008142479A5 JP 2006336397 A JP2006336397 A JP 2006336397A JP 2006336397 A JP2006336397 A JP 2006336397A JP 2008142479 A5 JP2008142479 A5 JP 2008142479A5
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- 230000001629 suppression Effects 0.000 claims 9
- 230000003068 static Effects 0.000 claims 4
- 230000005415 magnetization Effects 0.000 claims 2
- 238000000079 presaturation Methods 0.000 claims 2
Claims (12)
第２の領域に磁気共鳴現象を生じさせる第２のＲＦコイルと、
上記第１のＲＦコイルと上記第２のＲＦコイルを駆動するＲＦコイル駆動部と
を有し、
上記ＲＦコイル駆動部が、上記第１のＲＦコイルを駆動し、上記第１の領域が飽和された後、上記第２のコイルを駆動することにより、上記第１の領域からの磁気共鳴信号が抑制される
ＭＲＩ装置。 A first RF coil that causes a magnetic resonance phenomenon in the first region;
A second RF coil that causes a magnetic resonance phenomenon in the second region;
An RF coil driving unit that drives the first RF coil and the second RF coil;
The RF coil driving unit drives the first RF coil, and after the first region is saturated, the second coil is driven, whereby a magnetic resonance signal from the first region is generated. Suppressed MRI device.
請求項１に記載のＭＲＩ装置。 The MRI apparatus according to claim 1, wherein the RF coil driving unit drives the first RF coil when a gradient magnetic field is not applied and only a static magnetic field is applied.
請求項１に記載のＭＲＩ装置。 The MRI apparatus according to claim 1, wherein the RF coil driving unit drives the first RF coil when a static magnetic field and a gradient magnetic field are applied.
請求項１から請求項３のいずれか１項に記載のＭＲＩ装置。 The RF coil driving unit drives the first RF coil and the second RF coil based on any one of a space saturation method, a selective pre-saturation method, and a magnetization transfer method. The MRI apparatus according to claim 3.
上記ＲＦコイルに含まれる個々のコイルを別々に駆動できるＲＦコイル駆動部と
を有し、
上記ＲＦコイル駆動部が、上記ＲＦコイルに含まれる一部のコイルを駆動し、当該一部のコイルに、第１の領域に磁気共鳴現象を生じさせるためのＲＦパルスを送信させ、当該第１の領域が飽和された後、上記ＲＦコイルに含まれる全てのコイルを駆動し、当該全てのコイルに、第２の領域に磁気共鳴現象を生じさせるためのＲＦパルスを送信させることにより、当該第１の領域からの磁気共鳴信号が抑制される
ＭＲＩ装置。 An RF coil composed of two or more coils;
An RF coil driving unit capable of separately driving individual coils included in the RF coil,
The RF coil driving unit drives some coils included in the RF coil, causes the some coils to transmit an RF pulse for causing a magnetic resonance phenomenon in the first region, and the first coil. After all the regions are saturated, all the coils included in the RF coil are driven, and all the coils are caused to transmit RF pulses for causing a magnetic resonance phenomenon in the second region. An MRI apparatus in which magnetic resonance signals from the region 1 are suppressed.
請求項５に記載のＭＲＩ装置。 The MRI apparatus according to claim 5, wherein the RF coil driving unit drives some of the coils included in the RF coil when a gradient magnetic field is not applied and only a static magnetic field is applied.
請求項５に記載のＭＲＩ装置。 The MRI apparatus according to claim 5, wherein the RF coil driving unit drives some coils included in the RF coil when a static magnetic field and a gradient magnetic field are applied.
請求項５から請求項７のいずれか１項に記載のＭＲＩ装置。 8. The RF coil driving unit according to claim 5, wherein the RF coil driving unit drives the RF coil based on any one of a space saturation method, a selective pre-saturation method, and a magnetization transfer method. MRI equipment.
上記第２のＲＦコイルによって上記第２の領域に磁気共鳴現象を生じさせるためのＲＦパルスが送信される前に、上記第１の領域に磁気共鳴現象を生じさせるためのＲＦパルスを送信し、上記第１の領域からの磁気共鳴信号を抑制するために用いられる
ＲＦコイル。 Unlike a second RF coil that causes a magnetic resonance phenomenon in a second region, an RF coil that causes a magnetic resonance phenomenon in a first region,
Before the RF pulse for generating the magnetic resonance phenomenon in the second region is transmitted by the second RF coil, the RF pulse for generating the magnetic resonance phenomenon in the first region is transmitted, An RF coil used for suppressing magnetic resonance signals from the first region.
上記ＲＦコイルに含まれる一部のコイルによって第１の領域に磁気共鳴現象を生じさせるためのＲＦパルスを送信し、当該第１の領域が飽和された後、上記ＲＦコイルに含まれる全てのコイルによって第２の領域に磁気共鳴現象を生じさせるためのＲＦパルスを送信することにより、当該第１の領域からの磁気共鳴信号を抑制し、当該第１の領域を除く当該第２の領域から磁気共鳴信号を生じさせるために用いられる
ＲＦコイル。 An RF coil composed of two or more coils,
All the coils included in the RF coil after the RF pulse for causing the magnetic resonance phenomenon to be generated in the first region is transmitted by a part of the coils included in the RF coil and the first region is saturated. the by transmitting an RF pulse for generating a magnetic resonance phenomenon in the second region, to suppress magnetic resonance signals from said first region, said second region excluding the first region by the RF coil used to generate a magnetic resonance signal from.
上記ＲＦコイル駆動部が、上記第１のＲＦコイルを駆動し、
上記第１の領域が飽和された後、上記ＲＦコイル駆動部が、上記第２のコイルを駆動することにより、
上記第１の領域からの磁気共鳴信号が抑制される
磁気共鳴信号抑制方法。 A first RF coil to generate a magnetic resonance phenomenon in the first region, and a second RF coil to generate a magnetic resonance phenomenon in the second region, the first RF coil and the second RF coil A method of suppressing a magnetic resonance signal in an MRI apparatus having an RF coil driving unit for driving,
The RF coil driving unit drives the first RF coil;
After the first region is saturated, the RF coil driving unit drives the second coil,
A magnetic resonance signal suppression method in which a magnetic resonance signal from the first region is suppressed.
上記ＲＦコイル駆動部が、上記ＲＦコイルに含まれる一部のコイルを駆動し、当該一部のコイルに、第１の領域に磁気共鳴現象を生じさせるためのＲＦパルスを送信させ、
上記第１の領域が飽和された後、上記ＲＦコイル駆動部が、上記ＲＦコイルに含まれる全てのコイルを駆動し、当該全てのコイルに、第２の領域に磁気共鳴現象を生じさせるためのＲＦパルスを送信させることにより、
上記第１の領域からの磁気共鳴信号が抑制される
磁気共鳴信号抑制方法。 A magnetic resonance signal suppression method in an MRI apparatus having an RF coil composed of two or more coils and an RF coil driving unit capable of separately driving individual coils included in the RF coil,
The RF coil driving unit drives a part of the coil included in the RF coil, and causes the part of the coil to transmit an RF pulse for causing a magnetic resonance phenomenon in the first region;
After the first region is saturated, the RF coil driving unit drives all the coils included in the RF coil, and causes all the coils to cause a magnetic resonance phenomenon in the second region. By sending an RF pulse,
A magnetic resonance signal suppression method in which a magnetic resonance signal from the first region is suppressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006336397A JP5133557B2 (en) | 2006-12-13 | 2006-12-13 | MRI apparatus, RF coil, and magnetic resonance signal suppressing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006336397A JP5133557B2 (en) | 2006-12-13 | 2006-12-13 | MRI apparatus, RF coil, and magnetic resonance signal suppressing method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2008142479A JP2008142479A (en) | 2008-06-26 |
| JP2008142479A5 true JP2008142479A5 (en) | 2011-03-31 |
| JP5133557B2 JP5133557B2 (en) | 2013-01-30 |
Family
ID=39603298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006336397A Active JP5133557B2 (en) | 2006-12-13 | 2006-12-13 | MRI apparatus, RF coil, and magnetic resonance signal suppressing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5133557B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9864032B2 (en) * | 2010-01-05 | 2018-01-09 | National Health Research Institutes | Magnetic resonance imaging system |
| EP2515138A1 (en) | 2011-04-19 | 2012-10-24 | Koninklijke Philips Electronics N.V. | Motion triggered MR imaging using APT/CEST |
| JP5943159B2 (en) * | 2016-01-04 | 2016-06-29 | 株式会社日立製作所 | Magnetic resonance imaging system |
| CN114720927A (en) * | 2021-03-31 | 2022-07-08 | 无锡鸣石峻致医疗科技有限公司 | Nuclear magnetic resonance measurement system suitable for noninvasive quantitative detection of organs |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61102547A (en) * | 1984-10-25 | 1986-05-21 | Jeol Ltd | Nuclear magnetic resonance device |
| JPS6483249A (en) * | 1987-09-25 | 1989-03-29 | Mitsubishi Electric Corp | Magnetic resonance imaging method |
| JPH01293861A (en) * | 1988-05-24 | 1989-11-27 | Toshiba Corp | Magnetic resonance diagnostic apparatus |
| JPH0591988A (en) * | 1991-10-02 | 1993-04-16 | Yokogawa Medical Syst Ltd | Mr imaging system |
| JP3369243B2 (en) * | 1993-04-05 | 2003-01-20 | 株式会社東芝 | Magnetic resonance imaging equipment |
| JPH11225987A (en) * | 1998-02-18 | 1999-08-24 | Toshiba Corp | Magnetic resonance imaging device |
| DE19928110A1 (en) * | 1999-06-19 | 2000-12-21 | Philips Corp Intellectual Pty | MR procedure |
| JP2003052665A (en) * | 2001-08-08 | 2003-02-25 | Hitachi Medical Corp | Magnetic resonance imaging apparatus |
| US7054675B2 (en) * | 2002-01-30 | 2006-05-30 | Ge Medical Systems Global Technology Company, Llc | Customized spatial saturation pulse sequence for suppression of artifacts in MR images |
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2006
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