Title:
IMAGING METHOD BY MAGNETIC RESONANCE IMAGING SYSTEM
Document Type and Number:
Japanese Patent JP3499927
Kind Code:
B2
Abstract:
PURPOSE: To measure an anatomic image with high resolution and a functional image with high time resolution in the same cross-section simultaneously.
CONSTITUTION: A first echo 15 is measured by exciting selectively the cross-section desired to measure by a first high-frequency magnetic field 11 and applying an encode gradient magnetic field 13 and a read out gradient magnetic field 14. Thence, a second echo 23 is measured by selecting a reduced small cross-section in an area in an excited cross-section by a second high-frequency magnetic field 17 and a third high-frequency magnetic field 19 and applying an encode gradient magnetic field 21 and a read out gradient magnetic field signal 22, and the echos can be measured simultaneously from the cross-section of large visual field and the one of small visual field.
Inventors:
Kenji Takiguchi
Tetsuhiko Takahashi
Hiroshi Nishimura
Tetsuhiko Takahashi
Hiroshi Nishimura
Application Number:
JP24136294A
Publication Date:
February 23, 2004
Filing Date:
October 05, 1994
Export Citation:
Assignee:
Hitachi Medical Co., Ltd.
International Classes:
G01R33/48; A61B5/055; G01N33/48; (IPC1-7): A61B5/055; G01R33/48
Domestic Patent References:
| JP4343833A | ||||
| JP63143043A | ||||
| JP564633A | ||||
| JP2246930A | ||||
| JP7184879A |
Attorney, Agent or Firm:
Kimiko Tada (1 person outside)