T1WI_Star_VIBE_FS序列在头颈部放疗MR定位中扫描方法研究

doi:10.3760/cma.j.cn113030-20191114-00478

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Abstract Objective To compare and analyze the image quality,signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of T1WI_Star_VIBE_FS sequence in MRI simulation of neck tumors with different scanning methods, aiming to determine the optimal scanning method. Methods A retrospective analysis of 78 patients receiving MRI contrast scan was performed. All patients were randomly divided into three groups according to three different scanning methods including bolus mode (group A,n=23), segmentation splicing mode (group B,n=18) and the combination mode (group C,n=37). The image quality, SNR and CNR of the anterior soft tissues of neck were statistically compared. Results A higher image quality score was obtained in group C. The mean SNR and CNR in three groups were calculated as 214.70±148.78,91.95±59.26,307.61±127.80, and 208.74±148.27,85.79±59.50,301.58±127.48, respectively. The image quality score,SNR and CNR in group C were significantly better compared with those in group A and B (all P<0.01). Conclusion Combination of bolus and segmentation splicing modes is a recommended approach in MRI simulation during radiotherapy of neck tumors.

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	Liu Weiwei
	Li Tian
	Hu Qiaoqiao
	Zhao Dan
	Zhang Yangzi
	Yue Haizhen

Key words： Magnetic resonance simulation Head neck neoplasm Signal-to-noise ratio

Received: 14 November 2019

Fund:Beijing Natural Science Foundation (1202009);Beijing Municipal Administration of Hospitals Incubating Program (PX2019042)

Corresponding Authors: Yue Haizhen, Email:haizhenyue@bjcancer.org

Cite this article:

Liu Weiwei,Li Tian,Hu Qiaoqiao et al. Study of scanning method of T1WI_Star_VIBE_FS in MRI simulation of neck radiotherapy[J]. Chinese Journal of Radiation Oncology, 2021, 30(7): 692-696.

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http://journal12.magtechjournal.com/Jweb_fszlx/EN/10.3760/cma.j.cn113030-20191114-00478 OR http://journal12.magtechjournal.com/Jweb_fszlx/EN/Y2021/V30/I7/692

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