JPH0241137A - ケミカルシフトイメージング装置 - Google Patents
ケミカルシフトイメージング装置Info
- Publication number
- JPH0241137A JPH0241137A JP63190137A JP19013788A JPH0241137A JP H0241137 A JPH0241137 A JP H0241137A JP 63190137 A JP63190137 A JP 63190137A JP 19013788 A JP19013788 A JP 19013788A JP H0241137 A JPH0241137 A JP H0241137A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- magnetic field
- phase correction
- static magnetic
- uniform distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012937 correction Methods 0.000 title claims abstract description 76
- 238000003384 imaging method Methods 0.000 title claims description 22
- 239000000126 substance Substances 0.000 title claims description 19
- 230000003068 static effect Effects 0.000 claims abstract description 57
- 238000009828 non-uniform distribution Methods 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 30
- 230000010363 phase shift Effects 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 abstract description 16
- 238000012545 processing Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 15
- 238000009826 distribution Methods 0.000 description 13
- 230000005415 magnetization Effects 0.000 description 9
- 239000013598 vector Substances 0.000 description 9
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002592 echocardiography Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63190137A JPH0241137A (ja) | 1988-07-29 | 1988-07-29 | ケミカルシフトイメージング装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63190137A JPH0241137A (ja) | 1988-07-29 | 1988-07-29 | ケミカルシフトイメージング装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0241137A true JPH0241137A (ja) | 1990-02-09 |
| JPH0370966B2 JPH0370966B2 (enExample) | 1991-11-11 |
Family
ID=16253013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63190137A Granted JPH0241137A (ja) | 1988-07-29 | 1988-07-29 | ケミカルシフトイメージング装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241137A (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002053031A1 (fr) * | 2000-12-28 | 2002-07-11 | Hitachi Medical Corporation | Appareil et procede d'imagerie par resonance magnetique |
| JP2013183967A (ja) * | 2012-03-09 | 2013-09-19 | Hitachi Medical Corp | 磁気共鳴イメージング装置及び位相補正方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61226648A (ja) * | 1985-04-01 | 1986-10-08 | Hitachi Ltd | 核磁気共鳴を用いた検査装置 |
| JPS6272346A (ja) * | 1985-07-15 | 1987-04-02 | シーメンス アクチエンゲゼルシヤフト | フイ−ルド不均一情報を修正した化学シフト・イメ−ジ形成 |
-
1988
- 1988-07-29 JP JP63190137A patent/JPH0241137A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61226648A (ja) * | 1985-04-01 | 1986-10-08 | Hitachi Ltd | 核磁気共鳴を用いた検査装置 |
| JPS6272346A (ja) * | 1985-07-15 | 1987-04-02 | シーメンス アクチエンゲゼルシヤフト | フイ−ルド不均一情報を修正した化学シフト・イメ−ジ形成 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002053031A1 (fr) * | 2000-12-28 | 2002-07-11 | Hitachi Medical Corporation | Appareil et procede d'imagerie par resonance magnetique |
| JP2013183967A (ja) * | 2012-03-09 | 2013-09-19 | Hitachi Medical Corp | 磁気共鳴イメージング装置及び位相補正方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0370966B2 (enExample) | 1991-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Block et al. | Spiral imaging: a critical appraisal | |
| US6160397A (en) | Fast spin echo prescan for magnetic resonance imaging systems | |
| US5942897A (en) | Magnetic resonance imaging apparatus | |
| US6703835B2 (en) | System and method for unwrapping phase difference images | |
| US8497681B2 (en) | Magnetic resonance method and apparatus to determine phase correction parameters | |
| US7308125B2 (en) | Method and apparatus for reducing the effects of motion in an image | |
| US7848554B2 (en) | Sub-voxel motion correction for phase-contrast magnetic resonance imaging | |
| US5134372A (en) | Imaging method of water/fat separation in mri | |
| US5113865A (en) | Method and apparatus for correction of phase distortion in MR imaging system | |
| US6777933B2 (en) | Method for compensating for effects of object motion in an image | |
| US8094907B1 (en) | System, method and computer program product for fast conjugate phase reconstruction based on polynomial approximation | |
| US20200309884A1 (en) | Mri apparatus, image processing apparatus, and image processing method | |
| US8238634B1 (en) | Efficient off-resonance correction method and system for spiral imaging with improved accuracy | |
| JP2001120516A (ja) | 位相分布測定方法および装置、位相補正方法および装置、並びに、磁気共鳴撮像装置 | |
| US11194003B2 (en) | MRI apparatus and MRI method | |
| JP2020527089A (ja) | ディクソン型水/脂肪分離mrイメージング | |
| Borrello et al. | Chemical shift-based true water and fat images: regional phase correction of modified spin-echo MR images. | |
| US8410779B2 (en) | Contrast agent-free MR angiography with SSFP sequences | |
| US20060116569A1 (en) | Phase error measuring method, MR imaging method, and MRI system | |
| US6850061B2 (en) | Method compensating for effects of object motion in an image | |
| JP5873280B2 (ja) | 磁気共鳴イメージング装置、及び、位相アンラップ方法 | |
| JPH0241137A (ja) | ケミカルシフトイメージング装置 | |
| JP2767258B2 (ja) | 核磁気共鳴装置 | |
| GB2304419A (en) | Method and apparatus for providing separate fat and water MRI images in a single acquisition scan | |
| US20200103482A1 (en) | Magnetic resonance imaging apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071111 Year of fee payment: 16 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081111 Year of fee payment: 17 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081111 Year of fee payment: 17 |