新虚拟单能量图像对早期胃癌的诊断价值

诗涔; 张欢; 闫静; 刘欢欢; 潘自来; 严福华

新虚拟单能量图像对早期胃癌的诊断价值

诗涔¹,
张欢^1, ,,
闫静²,
刘欢欢¹,
潘自来¹,
严福华¹

1. 上海交通大学医学院附属瑞金医院放射科, 上海 200025;
2. 西门子有限公司, 上海 201318

基金项目:

上海交通大学医工交叉基金(YG2012MS48)

上海市科委医学引导项目(134119a5900)

详细信息

作者简介:
诗涔(1990-),女,上海交通大学医学院瑞金医院在读硕士,主要从事胃肠道肿瘤方面研究,Tel:18817821312,E-mail:shicen1990@126.com;张欢(1970-),女,上海交通大学医学院瑞金医院主任医师,主要从事胃肠道肿瘤方面研究,Tel:18917762915,E-mail:huanzhangy@126.com

通讯作者:
张欢(1970-),女,上海交通大学医学院瑞金医院主任医师,主要从事胃肠道肿瘤方面研究,Tel:18917762915,E-mail:huanzhangy@126.com

中图分类号: R814
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出版历程
- 收稿日期: 2014-04-08
- 网络出版日期: 2022-12-09

Value of Advanced Virtual Monoenergetic Images in Evaluating Early Gastric Cancer

1. Department of Radiology, Ruijin Hospital affiliated to Shanghai Jiao Tong University Medical School, Shanghai 200025, China;
2. Department of Radiology, Ruijin Hospital affiliated to Shanghai Jiao Tong University Medical School, Siemens Ltd., Healthcare Sector, Shanghai 201318, China

摘要

摘要: 目的:探讨新虚拟单能量图像在早期胃癌中的应用价值。方法:回顾性分析29例在双源CT行腹部双期双能量增强扫描的早期胃癌病人,并经手术证实病理资料。采用双源CT后处理工作站(Dual energy Mono+,syngo IPIPE,Siemens)使用100和Sn 140kV图像产生40keV、60keV、80keV三组新虚拟单能量图像(AMEIs),并与常规120kVp图像(PEIs)对照,比较各组对早期胃癌的检出率及CNR差异。结果:AMEIs 40keV组具有最高检出率(86.21%),但与PEIs组无统计学差异(<i<P</i<=0.062)。AMEIs 40keV组动脉期CNR及门静脉期CNR均明显高于其他各组(<i<P</i<均＜0.05)。结论:双源CT新40keV单能量图像可提高早期胃癌CNR,有利于EGC的检出。
- 早期胃癌 /
- 双源CT /
- 新虚拟单能量图像
Abstract: Objective: To evaluate the impact of advanced monoenergetic dual-energy computed tomography(DECT) datasets on detection rate and CNR of early gastric cancer(EGC). Method: Total of 29 cases of EGC who underwent two phases DECT scan were retrospectively enrolled in this study. CT findings were compared with surgical and histopathologic results. Advanced monoenergetic images(AMEIs) at 40 keV, 60 keV and 80 keV were calculated from the 100 and Sn 140 kV DE image data respectively using a monoenergetic software application(Dual energy Mono+, syngo IPIPE,Siemens). Differences in detection rates of EGC and CNR numbers were compared between different AMEIs and conventionally reconstructed polyenergetic images(PEIs) at 120 kVp. Results: AMEIs at 40 keV showed the highest detection rate(86.21%) for EGC which showed no significant difference with PEIs(<i<P</i< = 0.062). AMEIs at 40 keV revealed statistical higher CNR-AP and CNR-PP compared to other AMEIs and PEIs(all <i<P</i<〈 0.05). Conclusion: Virtual 40 keV image datasets of advanced image-based calculated monoenergetic significantly increase the CNR of early gastric cancer which was helpful to detect EGCs.
- early gastric cancer /
- dual-source CT /
- advanced monoenergetic images