不同翻转角的CDT序列在肝脏病灶中的应用研究

发布时间：2018-01-12 03:28

本文关键词：不同翻转角的CDT序列在肝脏病灶中的应用研究　出处：《中国医学计算机成像杂志》2016年06期 　论文类型：期刊论文

更多相关文章： 肝肿瘤 磁共振成像 CDT序列 Gd-DTPA

【摘要】：目的:探讨CDT序列不同翻转角在肝脏动脉期扫描中的应用,以期确定提高检出率的最佳角度。方法:2014年1月至2015年1月我院收治的120例肝占位的患者行CDT序列增强扫描,应用Gd-DTPA对比剂,以4个不同翻转角12°、15°、18°、22°分别扫描,测定所得到的肝多动脉期图像的病灶信噪比(SNR)、对比噪声比(CNR),比较4个翻转角的CNR、SNR情况并分析。结果:12°、15°、18°、22°四个翻转角的SNR分别为213.21±30.40、242.12±35.20、252.54±32.82及261.26±41.02;12°、15°、18°、22°四个翻转角的CNR分别为228.72±31.32、241.27±30.44、270.56±36.54及290.48±42.25;SNR、CNR值随着翻转角度数的增加明显增加,四个翻转角组间比较差异均显著有统计学意义(P0.05)。结论:大翻转角CDT序列增强肝动脉期扫描,有助于提高肝脏小病灶的检出率。
[Abstract]:Objective: to investigate the application of CDT sequence in hepatic arterial phase scanning. Methods: from January 2014 to January 2015, 120 patients with hepatic space occupying were examined by CDT sequence enhanced scanning. Using Gd-DTPA contrast medium, the lesion SNR of the liver multi-artery phase images was measured by scanning with four different inversion angles of 12 掳15 掳15 掳18 掳22 掳. Compared with the noise ratio, the SNR of the four turning angles was compared and analyzed. The results were as follows: 1: 12 掳/ 15 掳/ 18 掳. The SNR of 22 掳four turning angles were 213.21 卤30.40V 242.12 卤35.20C 252.54 卤32.82 and 261.26 卤41.02respectively. The CNR of 12 掳15 掳15 掳18 掳/ 22 掳four turning angles was 228.72 卤31.32 卤241.27 卤30.44, respectively. 270.56 卤36.54 and 290.48 卤42.25; The CNR value of SNR increased obviously with the increase of the number of turning angles. There were significant differences among the four reversal angle groups (P 0.05). Conclusion: the large flip angle CDT sequence can enhance the hepatic arterial phase scanning and improve the detection rate of small hepatic lesions.
【作者单位】：复旦大学附属中山医院放射科;
【分类号】：R445.2;R575
【正文快照】： 中国医学计算机成像杂志,2016,22:578-582Chin Comput Med Imag,2016,22:578-582Department of Radiology,Zhongshan Hospital,Fudan UniversityAddress:180 Fenglin Rd.,Shanghai 200030,P.R.C.Address Correspondence to ZENG Meng-su(E-mail:Zengmengsu@gmail.com)LIU Hao,

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