Research of generation mechanism and compensation techniques of MRI artifacts
- VernacularTitle:MRI伪影的产生机理及其补偿技术研究
- Author:
Gang YANG
;
Lin LI
- Publication Type:Journal Article
- Keywords:
MRI;
artifacts;
mechanism;
compensation technique
- From:
Chinese Medical Equipment Journal
2004;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To verify the usefulness of the corresponding compensation techniques for MRI artifacts after analyzing their generation mechanism. Methods Different compensation techniques were used to eliminate relative artifacts from the angle of improving background,calibrating software and hardware,editing parameters or instructing patients in scanning the patient or phantom with 1.0TMR and 1.5TMR. Results Artifacts were controlled to different extents and the quality of most MR images were improved. Conclusion Most artifacts can be eliminated completely by the use of corresponding compensation techniques while some others only be reduced a little or shifted.
