Title:
MR流速測定システム
Document Type and Number:
Japanese Patent JP4589526
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an MR flow rate measurement system which quantitatively measures or evaluates a flow rate of low speed flowing fluid such as blood, lymph, etc., in the lower limb without applying a contrast medium. SOLUTION: A pulse sequence includes a read out inclined magnetic field GR with dephase pulse Pdephase added to the pulse main body for reading out an echo signal. This MR flow rate measurement system is equipped with a means to execute a scan by the pulse sequence in a condition the applying direction of the read out inclined magnetic field GR is substantially matched to the direction of movement of measurement object fluid onto a subject placed in a static magnetic field, a means to collect echo signals generated by the scan, and a means to measure the flow rate of the fluid using the echo signals and information of the dephase pulse Pdephase.
Inventors:
Mitsue Miyazaki
Hiroshi Takai
Hiroshi Takai
Application Number:
JP2000399258A
Publication Date:
December 01, 2010
Filing Date:
December 27, 2000
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
A61B5/055; G01P5/00; G01R33/48
Domestic Patent References:
| JP531099A | ||||
| JP622932A |
Other References:
D. G. Norris et al,Phase encoded NMR flow imaging,Proceedings of the Society of Magnetic Resonance in Medicine,1984年,volume 1984, Issue S1,pp.559-560
Attorney, Agent or Firm:
Hisashi Hatano
Shunguchi Sekiguchi
Shunguchi Sekiguchi