中国中西医结合影像学杂志2024，Vol.22Issue(2)：212-216,5.DOI:10.3969/j.issn.1672-0512.2024.02.018
双能量CT非线性融合技术在双下肢CTA检查中的应用
Application of the dual-energy CT non-linear blending technique in bilateral lower limbs CTA examination
摘要
Abstract
Objective:To explore the application value of dual-energy CT non-linear blending(NLB)technology in CTA for the bilateral lower limbs.Methods:Fifty-two patients with suspected vascular disease of bilateral lower limbs were retrospectively enrolled.All patients underwent dual-energy CTA,and the CTA images were reconstructed via linear blending(LB)and NLB techniques to obtain the LB and NLB images.The image quality of the LB,NLB and original images in the low-kV(80 kV)was compared,including objective evaluation(CT value,SD,SNR,and CNR),subjective score,and the excellent rate and availability of images.Results:There was no significant difference in subjective score among the three groups(P＜0.05),the highest score was in the NLB group.The availabilities of 80 kV,LB,NLB images were 61.54%,38.46%and 65.38%,respectively,and the excellent rates were 30.77%,0%and 38.46%,respectively.The CT value,SD and CNR of blood vessels in the three groups were significantly different(all P＜0.05),the CT value of the NLB group was the highest,and the CT value,SD and CNR of the NLB group were all greater than those of the LB group(all P＜0.05).There were no significant differences in SNR of the three vessels among the three groups(all P＞0.05).Conclusions:NLB technology can improve the image quality of CTA images and is expected to increase the detection rate and diagnostic accuracy for vascular diseases of bilateral lower limbs,which is worthy of further clinical research.关键词
体层摄影术,X线计算机/下肢/血管造影术/线性融合技术/非线性融合技术/图像质量Key words
Tomography,X-ray computed/Lower limb/Angiography/Linear blending/Non-linear blending/Image quality引用本文复制引用
陈昌美,胡容,刘宗才,王荣品,曾宪春..双能量CT非线性融合技术在双下肢CTA检查中的应用[J].中国中西医结合影像学杂志,2024,22(2):212-216,5.基金项目
贵州省卫生健康委科学技术基金(gzwkj2023-214) （gzwkj2023-214）
贵州省中医药、民族医药科学技术研究专项(QZYY-2020-018). （QZYY-2020-018）
