摘要
目的:比较STIR技术与SPAIR技术在心膈角区的脂肪抑制效能,探讨STIR技术在心膈角区中脂肪与积液鉴别的临床应用。方法:采用3.0T MRI对30例患者进行心膈角区成像扫描。测量并比较STIR序列及SPAIR序列图像的信噪比,心膈角脂肪抑制的效率,主观评分及一致性分析。结果:STIR序列的信噪比为550.05±260.74,SPAIR序列的信噪比为625.31±466.32,两者之间无统计学意义(P=0.441)。STIR序列心膈角区脂肪全部抑制,诊断效能100%(30/30),SPAIR序列22例心膈角区脂肪无法抑制,诊断效能27%(8/30)。2名医师对图像质量主观评分结果一致性良好,STIR组Kappa值为0.739,一致性良好,SPAIR组Kappa值为0.756,一致性良好。30例STIR序列中脂肪抑制均有效,主观评分为2.18±0.39,SPAIR序列主观评分为2.00±0.78,两组间差异具有统计学意义(P=0.027)。结论:STIR序列在心膈角脂肪抑制的效率较好,诊断效能及主观评分较SPAIR序列高,能准确反映心膈角区的真实组织形态,更有利于对该区域病变的准确诊断,对心膈角区中脂肪与积液鉴别诊断提供一定帮助。
Objective:The aim of this study was to compare STIR technique and SPAIR technique on the efficiency of the fat suppression,the diagnostic efficacy and subjective score of fat suppression in the cardiophrenic angle imaging.Methods:40 patients were scanned the cardiophrenic angle with 3.0T MRI.Parameters including the signal-to-noise ratio(SNR),imaging efficiency,the subjective score of the image quality and the consistency analysis of the two sequences were measured and compared.Results:The SNR of STIR sequence was 550.05±260.74,and that of SPAIR sequence was 625.31±466.32.There was no significant difference between them(P=0.441).The fat tissue in the cardiophrenic angle was inhibited completely in STIR sequence,the diagnostic efficiency was 100%(30/30).The fat tissue in the cardiophrenic angle was not inhibited in 22 cases in SPAIR sequence,the diagnostic efficiency was 27%(8/30).The subjective scores of two doctors on image quality were consistent.The kappa value of STIR group was 0.739,which was consistent.The kappa value of SPAIR group was 0.756,which was consistent.Fat suppression was effective in 30 cases of STIR sequence,and the subjective score was 2.18±0.39,and the subjective score of spair sequence was 2.00±0.78.The difference between the two groups was statistically significant(P=0.027).Conclusion:The efficiency in fat suppression in the cardiophrenic angle,diagnostic efficacy and subjective scores of the STIR sequence are higher than those of SPAIR sequence.STIR sequence can accurately reflect the true tissue morphology of the cardiophrenic angle,more conducive to the accurate diagnosis of lesions in this area,and provides more help for the differential diagnosis of fat and effusion in the cardiophrenic angle.
作者
陈智杰
李新春
俞家熙
CHEN Zhijie;LI Xinchun;YU Jiaxi(Department of Radiology,The First Affiliated Hospital of Guangzhou Medical University,Guangzhou 510120,China)
出处
《广州医科大学学报》
2024年第1期7-11,共5页
Academic Journal of Guangzhou Medical University
基金
国家自然科学基金(82372050)。
关键词
心膈角
脂肪抑制
一致性分析
cardiophrenic angle
fat suppression
consistency analysis
