Self-made auxiliary device has uniform fat suppression effect in 3.0T MRI foot fat suppression
Objective To explore the impact of using a self-made auxiliary device(consisting of a base fixing device and a rice bag)on reducing artifacts caused by uneven fat suppression and its influence on diagnosis when performing 3.0T magnetic resonance foot examination with fat suppression sequences.Methods Thirty healthy volunteers and thirty volunteers with foot lesions recruited in our hospital from April to August 2024 were selected.The healthy volunteer group was scanned in sagittal position with the three-dimension-volume isotropic turbo spin echo acquisition-proton density weighted-spectral attenuated inversion recovery sequence(3D-VIEW-PDWI-SPAIR)of the foot by using the conventional fixation method(conventional group)and the self-made auxiliary device(experimental group)respectively.The obtained images were subjectively and objectively evaluated and compared and analyzed.The volunteer group with foot lesions used the self-made auxiliary device alone for sagittal scanning of the 3D-VIEW-PDWI-SPAIR sequence,and the obtained images were subjectively evaluated.Results In the healthy volunteer group:In the subjective evaluation method,the image quality of the experimental group was significantly better than that of the conventional group(P<0.01).In the objective evaluation method,in the comparison of signal-to-noise ratio of 23 regions of interest,the experimental group was significantly higher than the conventional group(P<0.01).In the volunteer group with diseases:Subjective evaluation:93.33%of the images reached the highest quality rating.Conclusion In 3.0T MR foot fat suppression sequence scanning,the application of the self-made auxiliary device has a uniform fat suppression effect,can significantly improve image quality.It is easy to operate,low in cost,and can be adapted to various head coils for use.It has innovation and potential clinical promotion value.
国家科技期刊平台
NSTL
万方数据
