Application value of multiplexed sensitivity encoding diffusion weighted imaging in neck MRI scanning
10.3969/j.issn.1002-1671.2024.03.029
- VernacularTitle:复合灵敏度编码高分辨率扩散加权成像在颈部MRI扫描的应用价值
- Author:
Xiaoliang XIE
1
;
Yong ZHANG
;
Qi'an SUN
;
Wei WANG
;
Yi ZHAO
;
Jianwei WANG
Author Information
1. 扬州大学附属医院影像科,江苏 扬州 225100
- Keywords:
neck;
diffusion weighted imaging;
multiplexed sensitivity encoding;
echo-planar imaging;
quality control
- From:
Journal of Practical Radiology
2024;40(3):468-472
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the feasibility of the multiplexed sensitivity encoding diffusion weighted imaging(MUSE-DWI)sequence in neck MRI,and to compare with traditional single-shot echo-planar imaging diffusion weighted imaging(SS-EPI-DWI)sequence.Methods Thirty healthy volunteers underwent MUSE-DWI and SS-EPI-DWI sequences scanning in neck.Two groups of images were independently scored by two radiologists for magnetic sensitivity artifact,chemical shift artifact,geometric distortion and overall image quality.The noise,signal-to-noise ratio(SNR)and contrast-to-noise ratio(CNR)of the regions of interest(ROI)of the two groups of images were measured and compared on the nasopharyngeal fossa layer,parotid gland layer,glottic layer and thyroid layer.Results Qualitative analysis showed that the image quality scores of MUSE-DWI sequence were significantly better than those of SS-EPI-DWI sequence in terms of magnetic sensitivity artifact,chemical shift artifact,geometric distortion and overall image quality(P<0.001).Quantitative analysis showed that the noise values of ROIs of MUSE-DWI sequence were significantly lower than those of SS-EPI-DWI sequence(P<0.001).The SNR and CNR of ROIs of MUSE-DWI sequence were higher than those of SS-EPI-DWI sequence(P<0.001).Conclusion MUSE-DWI sequence can significantly reduce geometric distortion,magnetic sensitivity artifact and chemical shift artifact,and SNR and CNR of images are significantly increased compared with SS-EPI-DWI sequence,which is more suitable for neck MRI scanning.
