JPH0421490B2 - - Google Patents
Info
- Publication number
- JPH0421490B2 JPH0421490B2 JP59228571A JP22857184A JPH0421490B2 JP H0421490 B2 JPH0421490 B2 JP H0421490B2 JP 59228571 A JP59228571 A JP 59228571A JP 22857184 A JP22857184 A JP 22857184A JP H0421490 B2 JPH0421490 B2 JP H0421490B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- gradient magnetic
- pulse
- applying
- sequence
- 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.)
- Expired - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 claims description 158
- 238000005481 NMR spectroscopy Methods 0.000 claims description 54
- 238000003384 imaging method Methods 0.000 claims description 20
- 230000003068 static effect Effects 0.000 claims description 17
- 230000008859 change Effects 0.000 claims description 7
- 230000005415 magnetization Effects 0.000 description 34
- 238000000034 method Methods 0.000 description 34
- 238000010586 diagram Methods 0.000 description 18
- 230000005284 excitation Effects 0.000 description 18
- 238000001514 detection method Methods 0.000 description 13
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 8
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 8
- 238000012360 testing method Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005094 computer simulation Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- QCVGEOXPDFCNHA-UHFFFAOYSA-N 5,5-dimethyl-2,4-dioxo-1,3-oxazolidine-3-carboxamide Chemical group CC1(C)OC(=O)N(C(N)=O)C1=O QCVGEOXPDFCNHA-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 235000014103 egg white Nutrition 0.000 description 1
- 210000000969 egg white Anatomy 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 150000003385 sodium Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000011426 transformation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
- G01R33/48—NMR imaging systems
- G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
- G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
- G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- High Energy & Nuclear Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59228571A JPS60166852A (ja) | 1984-10-30 | 1984-10-30 | Ｎｍｒ画像装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59228571A JPS60166852A (ja) | 1984-10-30 | 1984-10-30 | Ｎｍｒ画像装置 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58190581A Division JPS6082841A (ja) | 1983-10-12 | 1983-10-12 | 核磁気共鳴による検査装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60166852A JPS60166852A (ja) | 1985-08-30 |
| JPH0421490B2 true JPH0421490B2 (zh) | 1992-04-10 |
Family
ID=16878445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59228571A Granted JPS60166852A (ja) | 1984-10-30 | 1984-10-30 | Ｎｍｒ画像装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60166852A (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6359944A (ja) * | 1986-01-31 | 1988-03-15 | 横河メディカルシステム株式会社 | 核磁気共鳴断層撮影装置用スキヤンコントロ−ラ |
-
1984
- 1984-10-30 JP JP59228571A patent/JPS60166852A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60166852A (ja) | 1985-08-30 |
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