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Title:
DATA COLLECTION METHOD IN MRI APPARATUS
Document Type and Number:
Japanese Patent JPH0453528
Kind Code:
A
Abstract:

PURPOSE: To improve the S/N ratio to obtain a proper image by varying the data collection time and the read inclined magnetic field according to the length of echo time in collecting signals after the second echo signal and on.

CONSTITUTION: A selective excitation pulse H1 and a slice inclined magnetic field are applied to a tested body disposed in a static magnetic field. Subsequently, a non-selective excitation pulse H2 and slice inclined magnetic field are applied thereto. Read inclined magnetic field GR is applied to collect the first echo signal S1, and an image by the first echo signal S, is made into a PD intensified image as the echo time TE is short. Subsequently, a non-selective excitation pulse H3' and slice inclined magnetic field are applied. A read inclined magnetic field GR' is applied to collect the second echo signal S2' and an image by the second echo signal S2 is made into T2 intensified image as the echo time TE2 is long. These data groups are subjected to reconfiguration processing to obtain a tomographic image. Accordingly, PD intensified image by short echo time TE2 and T2 intensified image by long echo time are obtained.


Inventors:
KAMIYAMA AKIHIDE
Application Number:
JP16223190A
Publication Date:
February 21, 1992
Filing Date:
June 20, 1990
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
G01R33/20; A61B5/055; G01R33/36; G01R33/38; (IPC1-7): A61B5/055; G01R33/36; G01R33/38
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)



 
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