自制水模在3.0T MRI颈部脂肪抑制序列扫描中的价值

发布时间：2018-02-06 02:39

本文关键词： 颈磁共振成像　出处：《中国临床医学影像杂志》2017年03期 　论文类型：期刊论文

【摘要】：目的:探讨自制水模在3.0T MRI颈部频率选择饱和法脂肪抑制(FS)序列扫描中的应用价值。方法:通过常规及水模序列,用相同参数对30例志愿者颈部进行FS快速自旋回波(TSE)T_1WI和FS TSE T_2WI扫描,对所得图像进行主观及客观评价,并比较分析。结果:主观评价法中,FS TSE T_1WI分级在常规组和水模组分别为0级:1例和30例、1级:4例和0例、2级:8例和0例、3级:17例和0例,P均0.05;FS TSE T_2WI分级分别为0级:0例和1例、1级:1例和29例、2级:8例和0例、3级:21例和0例,P均0.05。客观评价法中,FS TSE T_1WI在下颌角、环状软骨、胸锁关节水平胸锁乳突肌信噪比中值在常规组和水模组分别为25.00(4.53,72.65)和103.72(99.77,108.04)、9.05(3.45,60.32)和118.80(106.59,123.94)、19.00(3.35,61.21)和101.74(87.38,110.29),P均0.05;FS TSE T_2WI像上分别为8.30(3.63,13.91)和15.26(12.68,17.50)、3.84(2.86,11.95)和15.06(12.76,16.88)、5.06(2.71,13.40)和14.46(11.47,15.68),P均0.05。结论:在3.0T MRI颈部FS序列扫描中,应用水模可明显提高成像质量,并且操作简单,易于推广。
[Abstract]:Objective: to investigate the application value of self-made water model in 3. 0T MRI neck frequency selective fat suppression FSs sequence scanning. Methods: routine and water model sequences were used. The neck of 30 volunteers were scanned with FS fast spin echo TSE T 1WI and FS TSE T 2WI with the same parameters. The images were evaluated subjectively and objectively. Results: in the subjective evaluation method, the grade of FS TSE T 1WI was 0: 1 in the routine group and 0 in the water model group, 4 cases in grade 1 and 4 cases in grade 1 and 0 cases in grade 2: 1 respectively in the routine group and the water model group, and 8 cases and 0 cases in grade 2: 1 respectively. Grade 3: 17 cases and 0 cases (P < 0.05); FS TSE T2WI grades were 0: 0, 1 / 1, 1 / 1, 29 / 2, 8 / 2, 0 / 3, 21 / 0 and 0 / 0, respectively. Objective evaluation method was used. The median SNR of sternocleidomastoid muscle on FS TSE T 1WI in mandibular angle, annular cartilage and sternoclavicular joint was 25.004. 53 in routine group and water model group, respectively. (72.65) and 103.7299. 77.04 (9.05 3.45) and 118.80 (106.59) and 123.94). 19.00, 3.35, 61.21) and 101.74, 87.38, 110.29, P, 0.05; FS TSE T2WI were 8.30 ~ 3.63 ~ 13.91) and 15.26 ~ 12.68 ~ 17.50 ~ 3.84 ~ 2.86 respectively. 11.95) and 15.06 (12.76-16.88) and 14.46 (11.47) and 5.06 (2.71) (13.40) and 14.46 (11.47) (15.68). Conclusion: in 3.0T MRI neck FS scan, the application of water model can improve the imaging quality obviously, and the operation is simple and easy to be popularized.
【作者单位】：杭州市第一人民医院放射科;
【分类号】：R681.5;R445.2

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