| 摘要: |
| 目的 研究宝石能谱CT（gemstone spectral CT，GSCT）对胃癌区域淋巴结转移的诊断价值。方法 回顾分析52例胃镜下组织学活检证实为胃癌并行GSCT（GSCT 组，24 例）或双源CT（dual source CT，DSCT）（DSCT 组，28 例）的患者,两组除常规CT增强检查外，GSCT在动脉期应用能谱成像GSI（gemstone spectral imaging）软件，获得区域转移淋巴结与胃癌病变的能谱衰减曲线，对比分析两组CT结果与术后病理结果符合率及GSCT 对转移淋巴结评估的准确性。结果 通过计算淋巴结大小、CT 值差值及短长径比值的方法，GSCT 组评估淋巴结转移与病理符合率高于DSCT 组（P＜0.05）；胃癌及转移淋巴结能谱分析结果无统计学差异（P≥0.05）。结论 GSCT 检查胃癌区域淋巴结转移与病理结果的一致性高于DSCT；GSCT可对胃癌术前转移淋巴结进行详细判断，并对术前评估提供了理论依据和技术支持，具有重要的临床应用价值。 |
| 关键词: 宝石能谱CT 双源CT 胃癌 淋巴结转移 |
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| Application value of gemstone spectral imaging CT in regional lymph node metastasis of gastric cancer |
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XU Qi, ZHANG Jianjun, ZHANG Wenxu, DONG Yunfei, LIU Tie
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Zhejiang Hospital
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| Abstract: |
| Objective To evaluate the application value of gemstone spectral imaging CT in regional lymph node metastasis of gastric cancer. Methods 52 patients with gastric cancer diagnosed by gastroscopy were divided into two groups, underwent gemstone spectral CT (GSCT) or dual source CT (DSCT) scan separately before operation. GSCT could display the spectrum attenuation curve of regional lymph node metastasis and gastric cancer through the technique of gemstone spectral imaging during the arterial phase. The coincidence rate in image of CT with pathology and accuracy of assessment of GSCT in regional lymph node metastasis was analyzed. Results The coincidence rate in assessment of CT and pathology in GSCT group was higher than DSCT group through calculate the difference of CT value and length diameter ratio of lymph node(90.5%vs81.2%, P＜0.05). There was no difference in GSI between lymph node and gastric cancer (P≥0.05). Conclusion GSCT has the higher clinical values in assessment of the regional lymph node metastasis of gastric cancer and preoperation than DSCT. |
| Key words: GSCT DSCT Gastric cancer Regional lymph node metastasis |
