JPS6447912A - Magnetic resonance imaging method - Google Patents
Magnetic resonance imaging methodInfo
- Publication number
- JPS6447912A JPS6447912A JP62204447A JP20444787A JPS6447912A JP S6447912 A JPS6447912 A JP S6447912A JP 62204447 A JP62204447 A JP 62204447A JP 20444787 A JP20444787 A JP 20444787A JP S6447912 A JPS6447912 A JP S6447912A
- Authority
- JP
- Japan
- Prior art keywords
- plane
- blood
- slanted
- magnetic field
- slicing
- 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
- 238000000034 method Methods 0.000 title abstract 3
- 238000002595 magnetic resonance imaging Methods 0.000 title 1
- 239000008280 blood Substances 0.000 abstract 2
- 210000004369 blood Anatomy 0.000 abstract 2
- 230000017531 blood circulation Effects 0.000 abstract 2
- 210000004204 blood vessel Anatomy 0.000 abstract 2
- 238000003384 imaging method Methods 0.000 abstract 2
- 230000014509 gene expression Effects 0.000 abstract 1
- 239000000523 sample Substances 0.000 abstract 1
- 238000003325 tomography Methods 0.000 abstract 1
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
- Measuring Volume Flow (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
PURPOSE:To recognize the flow speed direction of blood for imaging from an exciting part and its position relationship, by selectively exciting the desired slicing part of a body to be checked and then the slicing part along the running direction of a blood vessel for imaging. CONSTITUTION:A magnetic field Gz having a slanted Z axis (or a magnetic field Gy having a slanted Y axis) are applied as a slanted magnetic field for slicing. A 90 deg. RF pulse is applied. Thus, a slicing plane S1 (or S2) is excited. Therefore, the magnetic field Gz is applied in order to encode the collection of signals at the plane S2. A 180 deg.C RF pulse is applied. The magnetic fields Gy and Gx are applied by an ordinary encode method and a lead slanted- magnetic-field applying method. Echo signals caused by magnetic resonance are generated. The signals are detected with a probe 4 and processed in a CPU 13. The tomography data at the plane S2 is obtained and the image is displayed. The blood in blood vessels BV1 and BV2, which are excited at the plane S1 are moved by distances d1 and d2 from the plane S1 on the plane S2 owing to the blood flow speeds. Thus the low signal levels are obtained. Since a slice thickness (h) of the plane S1 and the like can be found, the blood flow speeds V1 and V2 can be obtained by specified expressions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62204447A JPS6447912A (en) | 1987-08-18 | 1987-08-18 | Magnetic resonance imaging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62204447A JPS6447912A (en) | 1987-08-18 | 1987-08-18 | Magnetic resonance imaging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6447912A true JPS6447912A (en) | 1989-02-22 |
| JPH0578342B2 JPH0578342B2 (en) | 1993-10-28 |
Family
ID=16490678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62204447A Granted JPS6447912A (en) | 1987-08-18 | 1987-08-18 | Magnetic resonance imaging method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6447912A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5199435A (en) * | 1989-06-13 | 1993-04-06 | Kabushiki Kaisha Toshiba | Magnetic resonance imaging system |
| JP2011067695A (en) * | 2011-01-13 | 2011-04-07 | Toshiba Corp | Magnetic resonance imaging apparatus and magnetic resonance imaging method |
-
1987
- 1987-08-18 JP JP62204447A patent/JPS6447912A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5199435A (en) * | 1989-06-13 | 1993-04-06 | Kabushiki Kaisha Toshiba | Magnetic resonance imaging system |
| JP2011067695A (en) * | 2011-01-13 | 2011-04-07 | Toshiba Corp | Magnetic resonance imaging apparatus and magnetic resonance imaging method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0578342B2 (en) | 1993-10-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |