能谱CT在胃癌术前分期中的研究现状

佳 宋(承德医学院附属医院，中国)
振东 曹(承德医学院附属医院，中国)

摘要

胃癌是一种常见的来源于消化道的恶性肿瘤，其发病率及死亡率呈不断升高趋势。早发现、早诊断、早治疗是提高患者生存率和改善预后的关键。能谱CT成像作为一种新型的成像技术，凭借40~140keV下不同单能量图像可以更好地对胃癌病灶进行术前分期以及更低的扫描辐射剂量最大程度地避免患者的二次伤害。同时，能谱CT依靠能谱曲线同源性原理可以判定淋巴结转移的情况等优势，弥补常规CT的缺陷，对早期胃癌的检出、进展期胃癌相关指标的评判有着精确的定量参数，为临床提供有价值的诊断依据。随着能谱CT技术的深入开展，相信未来胃癌的研究方向会集中在分子影像学与基因的联合诊断方面，以此来进一步揭示胃癌的内部影像信息。

关键词

胃癌；能谱CT；术前分期

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DOI: http://dx.doi.org/10.26549/yzlcyxzz.v4i4.7078