Study of scanning method of T 1WI_Star_VIBE_FS in MRI simulation of neck radiotherapy
10.3760/cma.j.cn113030-20191114-00478
- VernacularTitle:T1WI_Star_VIBE_FS序列在头颈部放疗MR定位中扫描方法研究
- Author:
Weiwei LIU
1
;
Tian LI
;
Qiaoqiao HU
;
Dan ZHAO
;
Yangzi ZHANG
;
Haizhen YUE
Author Information
1. 北京大学肿瘤医院暨北京市肿瘤防治研究所放疗科恶性肿瘤发病机制及转化研究教育部重点实验室 100142
- Keywords:
Magnetic resonance simulation;
Head neck neoplasm;
Signal-to-noise ratio
- From:
Chinese Journal of Radiation Oncology
2021;30(7):692-696
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To compare and analyze the image quality, signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of T 1WI_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.
