Application of energy spectrum CT in preoperative staging of T<sub>3</sub> and T<sub>4</sub> gastric cancer

ZHANG Wenlong; LIANG Yingliang; WANG Song

doi:10.19732/j.cnki.2096-6212.2018.06.004

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Application of energy spectrum CT in preoperative staging of T₃ and T₄ gastric cancer

更新时间：2025-12-15

- Application of energy spectrum CT in preoperative staging of T₃ and T₄ gastric cancer
- Vol. 27, Issue 6, Pages: 448-451(2018)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.19732/j.cnki.2096-6212.2018.06.004
  CLC：
- Published Online：16 January 2019，
  
  Published：16 January 2019
- 稿件说明：
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张文龙,梁英良,王嵩. 宝石能谱CT对胃癌T₃和T₄分期的诊断价值[J]. 肿瘤影像学, 2018, 27(6): 448-451 https://doi.

org/10.19732/j.cnki.2096-6212.2018.06.004
张文龙,梁英良,王嵩. 宝石能谱CT对胃癌T₃和T₄分期的诊断价值[J]. 肿瘤影像学, 2018, 27(6): 448-451 https://doi. DOI： 10.19732/j.cnki.2096-6212.2018.06.004.

org/10.19732/j.cnki.2096-6212.2018.06.004 DOI：

摘要

目的：

探讨宝石能谱CT能谱成像在胃癌术前T

和T

分期中的诊断价值。

方法：

回顾性分析上海中医药大学附属龙华医院2015年10月2017年10月经手术后病理学检查证实为胃癌T

、T

分期的患者60例，术前1周内均行宝石能谱CT增强扫描。对患者的宝石能谱CT特征进行回顾性分析，并与病理学检查结果进行对照，探讨宝石能谱CT在胃癌术前T

和T

分期中的应用价值。

结果：

60例胃癌患者中，术后病理学检查证实19例为T

期，41例为T

期。根据浆膜面CT征象诊断T

和T

期胃癌的灵敏度、特异度及准确率分别为85.5%、81.2%及84.6%，根据脂肪间隙CT征象诊断T

和T

期胃癌的灵敏度、特异度及准确率分别为81.5%、66.6%及76.4%，两者之间的差异无统计学意义。T

和T

期胃癌邻近周围脂肪间隙碘浓度有差异，且静脉期较动脉期明显。

结论：

宝石能谱CT在胃癌术前T

和T

分期中有较高诊断价值，可对胃癌患者进行较为准确的术前分期，为术前新辅助化疗提供理论依据。

Abstract

Objective:

To investigate the application value of energy spectrum CT in preoperative staging of T

and T

gastric cancer.

Methods:

The clinical data of 60 patients with advanced gastric cancer confirmed by operation and pathology hospitalized in Longhua Hospital

Shanghai University of Traditional Chinese Medicine from October

2015 to October 2017 were analyzed retrospectively. All patients underwent energy spectrum CT scan within one weak and the results were compared with the pathological results.

Results:

The pathological results confirmed 19 cases with T

stage and 41 cases with T

stage. The sensitivity

specificity and accuracy of energy spectrum CT based on serosal changes in diagnosis of T

and T

carcinoma were 85.5%

81.2%

84.6%

respectively. The sensitivity

specificity and accuracy of energy spectrum CT based on perigastric fat plane in diagnosis of T

and T

carcinoma were 81.5%

66.6%

76.4%

respectively. There was no difference in the overall accuracy between the two CT features. The iodine concentration in the perigastric fat tissue adjacent to tumor in T

carcinoma was significantly higher than that in T

carcinoma

and the difference was more obvious in venous phase than that in arterial phase.

Conclusion:

Energy spectrum CT is of high application value in the preoperative staging of gastric cancer. It can provide a scientific basis for the reasonable preoperative chemotherapy for the patients with gastric cancer.

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Related Institution

Department of Information Management, Shanxi Province Cancer Hospital /Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences /Cancer Hospital Affiliated to Shanxi Medical University

Department of Imaging, Shanxi Province Cancer Hospital /Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences /Cancer Hospital Affiliated to Shanxi Medical University

Shanxi Medical University Graduate School

Institute of Medical Technology, Peking University Health Science Center

Department of Nuclear Medicine, Peking University Cancer Hospital & Institute, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, NMPA Key Laboratory for Research and Evaluation of Radiopharmaceuticals, National Medical Products Administration, Beijing Key Laboratory of Carcinogenesis and Translational Research

AI问答

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Application of energy spectrum CT in preoperative staging of T3 and T4 gastric cancer

DOI：10.19732/j.cnki.2096-6212.2018.06.004

摘要

Abstract

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Keywords

references

Application of energy spectrum CT in preoperative staging of T₃ and T₄ gastric cancer