Dual-energy CT with virtual monoenergetic images to improve the visualization of pancreatic supplying arteries: the normal anatomy and variations

作者全名："Liang, Hong-wei; Zhou, Yang; Zhang, Zhi-wei; Yan, Gao-wu; Du, Si-lin; Zhang, Xiao-hui; Li, Xin-you; Lv, Fa-jin; Zheng, Qiao; Li, Yong-mei"

作者地址："[Liang, Hong-wei; Zhou, Yang; Zhang, Zhi-wei; Du, Si-lin; Zhang, Xiao-hui; Li, Xin-you; Lv, Fa-jin; Zheng, Qiao; Li, Yong-mei] Chongqing Med Univ, Affiliated Hosp 1, Dept Radiol, 1 Youyi Rd, Chongqing 400016, Peoples R China; [Yan, Gao-wu] Suining Cent Hosp, Dept Radiol, Suining 629000, Peoples R China"

通信作者："Zheng, Q; Li, YM (通讯作者)，Chongqing Med Univ, Affiliated Hosp 1, Dept Radiol, 1 Youyi Rd, Chongqing 400016, Peoples R China."

来源：INSIGHTS INTO IMAGING

ESI学科分类：CLINICAL MEDICINE

WOS号：WOS:000751327800001

JCR分区：Q1

影响因子：4.7

年份：2022

卷号：13

期号：1

开始页：　

结束页：　

文献类型：Article

关键词：Pancreatic supplying arteries; Dual-energy CT; Virtual monoenergetic images

摘要："Background Pancreatic ductal adenocarcinoma (PDAC) remains a malignancy with poor prognosis, appropriate surgical resection and neoadjuvant therapy depend on the accurate identification of pancreatic supplying arteries. We aim to evaluate the ability of monoenergetic images (MEI [+]) of dual-energy CT (DECT) to improve the visualization of pancreatic supplying arteries compared to conventional polyenergetic images (PEI) and investigate the implications of vascular variation in pancreatic surgery and transarterial interventions. Results One hundred patients without pancreatic diseases underwent DECT examinations were retrospectively enrolled in this study. The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) at 40-keV MEI (+) were significantly higher than those of PEI (p < 0.05). All subjective MEI (+) scores were significantly higher than those of PEI (p < 0.05). The visualization rates were significantly higher for posterior superior pancreaticoduodenal artery (PSPDA), anterior and posterior inferior pancreaticoduodenal artery (AIPDA, PIPDA), anterior and posterior pancreaticoduodenal arcade (APAC, PPAC), transverse and caudal pancreatic artery (TPA, PCA) at 40-keV MEI (+) than those of PEI (p < 0.05). However, there were no significant differences for visualizing anterior superior pancreaticoduodenal artery (ASPDA), inferior pancreaticoduodenal artery (IPDA), dorsal and magnificent pancreatic artery (DPA, MPA) between 40-keV MEI (+) and PEI (p > 0.05). Four types of variations were observed in the origin of DPA and three to five types in the origin of PSPDA, AIPDA and PIPDA. Conclusions 40-keV MEI (+) of DECT improves the visualization and objective and subjective image quality of pancreatic supplying arteries compared to PEI. Pancreatic supplying arteries have great variations, which has important implications for preoperative planning of technically challenging surgeries and transarterial interventions."

基金机构：Foundation of the Medicine Scientific key Research Project of Chongqing Municipal Health and Family Planning Commission [2016ZDXM002]; First Affiliated Hospital of Chongqing Medical University [PYJJ2020-06]

基金资助正文：This work was funded by the Foundation of the Medicine Scientific key Research Project of Chongqing Municipal Health and Family Planning Commission (No. 2016ZDXM002) and the First Affiliated Hospital of Chongqing Medical University (PYJJ2020-06).