Influence of shape and position of the examnined objects on coil MR signal to noise ratio
- VernacularTitle:被检体形状及放置对MR线圈信噪比的影响
- Author:
Jianwei LI
- Publication Type:Journal Article
- Keywords:
Magnetic resonance imaging;
Phantoms,imaging;
Investigative techniques
- From:
Chinese Journal of Radiology
1999;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the relationship between object-coil coupling and coil signal to noise ratio(SNR).Methods The SNR of the coil was measured and calculated using different shapes of the phantom and different positions in head or body coils.Results When oblate cylinder was placed axially in head coil,it's SNR(55.47?0.69)was better than that at sagittal position(46.59?1.36)(t=16.48, P
