High-frequency contrast-enhanced ultrasound in characterization of small colorectal liver metastases

QIN Si; CHEN Yao; WANG Yimin; WEN Yanling; LIU Guangjian

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High-frequency contrast-enhanced ultrasound in characterization of small colorectal liver metastases

更新时间：2025-12-15

- High-frequency contrast-enhanced ultrasound in characterization of small colorectal liver metastases
- Vol. 26, Issue 1, Pages: 12-17(2017)
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- Published Online：13 April 2017，
  
  Published：13 April 2017
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覃斯,陈瑶,王怡敏,等. 高频超声造影诊断结直肠癌微小肝转移瘤的价值[J]. 肿瘤影像学, 2017, 26(1): 12-17
DOI：

覃斯,陈瑶,王怡敏,等. 高频超声造影诊断结直肠癌微小肝转移瘤的价值[J]. 肿瘤影像学, 2017, 26(1): 12-17 DOI：

摘要

目的：

探讨使用高频线阵探头超声及超声造影(contrast-enhanced ultrasound，CEUS)诊断结直肠癌微小肝转移瘤(colorectal liver metastases，CRLMs)的能力。

方法：

微小CRLM患者85例，共156个病灶，平均长径(7.401.90) mm。使用GE公司Logiq E9超声仪，分别配备凸阵及高频探头对肝脏行超声及CEUS扫查，不同年资医师进行图像分析及诊断。

结果：

高频探头超声及CEUS的诊断价值略优于凸阵探头。高年资医师的诊断能力高于低年资医师，使用凸阵探头时更明显(

0.05)。高频探头有助于提升不同年资医师对CRLMs边界、声晕、增强水平及增强形态观察的一致性(边界Kappa值：0.928

. 0.860；声晕Kappa值：0.909

. 0.816；增强水平Kappa值：0.714

. 0.572；增强形态Kappa值：0.893

. 0.600)，进而提高诊断一致性(超声Kappa值：0.628

. 0.479；CEUS Kappa值：0.658

vs.

0.363)。

结论：

高频线阵探头能高分辨率、高对比度地显示微小CRLMs特点，有助于提高诊断准确率及不同经验水平医师诊断的一致性。

Abstract

Objective:

To investigate the value of ultrasound (US) and contrast-enhanced ultrasound (CEUS) using highfrequency linear probe in the characterization of small colorectal liver metastases (CRLMs).

Methods:

A total of 85 patients with final diagnosis of CRLMs were included in this study. A total of 156 small CRLMs [(7.401.90) mm in diameter

]

were investigated. Logiq E9 (GE Healthcare

USA) equipped with a convex probe (C1-5) and a linear probe (9L) was used. The co

nvex and linear probes were used for US and CEUS

respectively. Senior and junior radiologists separately reviewed all the images and made the final diagnosis.

Results:

The diagnostic value of US and CEUS using high-frequency linear probe were slightly superior to those using convex probe. Senior radiologists diagnostic ability was better than junior radiologist

especially when using convex probe (

0.05). High-frequency US and CEUS helped to improve the observe agreement in lesion boundary

halo sign

enhancement level and pattern (boundary Kappa: 0.928 vs. 0.860; halo sign Kappa: 0.909

. 0.816; enhancement level Kappa: 0.714

. 0.572; enhancement pattern Kappa: 0.893

. 0.600). High-frequency linear probe helped to improve the diagnostic consistency of two radiologists (US Kappa: 0.628

. 0.479; CEUS Kappa: 0.658

. 0.363).

Conclusion:

US and CEUS using high-frequency linear probe could depict thesmall CRLMs in high spatial resolution and high contrast

which may help to improve the characterization of small CRLMs and the diagnostic consistency of radiologists with different levels of experience.

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