Coil selection and application during temporomandibular joint MRI imaging
10.7687/j.issn1003-8868.2018.03.050
- VernacularTitle:颞下颌关节MRI中的线圈选择及应用
- Author:
Qiao-Hong ZHUANG
1
;
Qi SUN
;
Jun-Min DONG
;
Meng-Da JIANG
;
Xiao-Feng TAO
Author Information
1. 上海交通大学医学院附属第九人民医院放射科
- Keywords:
temporomandibular joint;
MRI;
surface coil;
phase-array head coil;
imaging examination
- From:
Chinese Medical Equipment Journal
2018;39(3):50-53
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical application of 15-channel phased-array head coil and 6-channel dS Flex M surface coil in MRI imaging of temporomandibular joint.Methods Totally 50 patients were randomly equally assigned into two groups, of whom, one group used a 15-channel phase-array head coil for MRI scanning, and the other applied a 6-channel dS Flex M surface coil. The same regions of interest were set up to measure and analyze the signal to noise ratio (SNR)and contrast to noise ratio (CNR)of each region respectively.SPSS 19.0 software was used for quantitative analysis. Results The head coil had the SNR and the CNR higher than those of the surface coil.The head coil and Flex surface coil had the imaging diagnosis rates being 95.83% and 91.67% respectively,and there was no significant difference between them(P>0.05). Conclusion Both phase-array head coil and dS Flex M surface coil can be used for temporomandibular joint MRI imaging, and it's suggested that conventional imaging be executed with dS Flex M surface coil and functional imaging be implemented with head coil.
