CT小视野薄层靶重建技术对肾上腺病变的诊断价值  

Diagnostic value of small field thin-section target reconstruction of CT in adrenal disorders

作　　者：周晨怡 王亮亮 刘辉 徐道文 叶娜 王艳玲 孙刚 ZHOU Chenyi;WANG Liangliang;LIU Hui;XU Daowen;YE Na;WANG Yanling;SUN Gang(Department of Radiology,People′s Hospital of Suzhou New District,Suzhou Jiangsu 215129;College of Medical Imaging,Wannan Medical College,Wuhu Anhui 241002,China)

机构地区：[1]苏州高新区人民医院放射科,江苏苏州215129 [2]皖南医学院医学影像学院,安徽芜湖241002

出　　处：《江苏大学学报（医学版）》2023年第4期328-332,共5页Journal of Jiangsu University：Medicine Edition

基　　金：江苏省科技计划项目(BE2021663);苏州市临床重点病种诊疗技术专项项目(LCZX202240)。

摘　　要：目的:比较CT小视野薄层靶重建技术与常规视野对肾上腺病变的诊断价值。方法:回顾性收集2018年4月至2021年12月于苏州高新区人民医院行常规视野和小视野肾上腺CT增强扫描的97例患者的CT影像资料。测量并计算常规视野法和小视野法图像感兴趣区的CT值、图像噪声、信噪比(SNR)及对比噪声比(CNR),由两名高年资医师对所有肾上腺扫描图像质量进行主观评分和影像征象评价。以病理结果为金标准,比较两种方法对肾上腺病灶诊断效能的差异。图像质量客观指标和主观评分比较分别采用配对t检验和Wilcoxon秩和检验,影像征象和诊断符合率采用χ2检验。结果:小视野法的SNR和CNR均明显高于常规视野法(P<0.001),小视野法图像质量主观评分优于常规视野法(P<0.001),小视野法的定位和定性诊断符合率较常规视野法分别提升了25.58%和23.25%,差异有统计学意义(P<0.05)。小视野法和常规视野法在观察肾上腺状态的差异有统计学意义(P<0.05)。结论:CT小视野薄层靶重建有利于观察肾上腺形态变化,可提升肾上腺病变的诊断准确率。Objective:To compare the clinical value of conventional vision and small field thin-section target reconstruction CT technique in adrenal disorders.Methods:Between April 2018 and December 2021,97 patients underwent both conventional scan and target reconstruction CT examinations at the People′s Hospital of Suzhou New District were included.Differences in image quality and diagnostic efficacy between conventional method and small field methods were analyzed according to signal noise ratio(SNR),contrast noise ratio(CNR)and image evaluation of image quality by two senior radiologists.Image quality indicators and subjective scores were statistically analyzed using the paired t-test and Wilcoxon tests.Image features and diagnostic coincidence rates were statistically analyzed using the Chi-square test.Results:SNR,CNR and image quality scores of small field method were significantly higher than those in conventional method(P<0.001).The coincidence rates of positioning and qualitative diagnosis of small field method were increased by 25.58%and 23.25%respectively compared with conventional method(P<0.05).There were statistically significant differences in adrenal status between the small field method and conventional method(P<0.05).Conclusion:Small field target reconstruction of CT images are conducive to the display of morphologic change and may be used to improve the diagnostic accuracy of adrenal disorders.

关 键 词：肾上腺 计算机体层摄影 靶重建 诊断 

分 类 号：R814.42[医药卫生—影像医学与核医学] R586.9[医药卫生—放射医学]