title: [Resectibility assessment of enhanced CT and contrast-enhanced endoscopic ultrasonography for the periampullary neoplasm].
abstract: OBJECTIVE
  To evaluate the efficacy of enhanced CT and contrast-enhanced endoscopic ultrasonography (CE-EUS) for assessment of the resectibility of periampullary neoplasm.
  
  
  METHODS
  a retrospective analysis of 93 patients with periampullary neoplasm underwent CT and CE-EUS was conducted to compare the imaging data with the surgical and pathological findings, in order to evaluate their efficacies for the resectibility assessment.
  
  
  RESULTS
  There was no significant difference in sensitivity and specificity between CT and CE-EUS for the evaluation of adjacent organ invasion, lymph node metastasis and liver metastasis (P > 0.05). For the diagnosis of periampullary neoplasm and assessment of vascular invasion, CE-EUS was better than CT (94.6% vs 84.1%, P = 0.023; 96.2% vs 85.9%, P = 0.041). Logistic regression indicated that the accuracy of CE-EUS in determing adjacent organ invasion was correlated with the tumor size, and vascular invasion was correlated with the tumor location and size.
  
  
  CONCLUSIONS
  CE-EUS has advantages in the assessment of the resectibility of periampullary neoplasm, especially for the assessment of vascular invasion, and can be used as a supplementary Image technology to the enhanced CT.
authors.affiliation: Department of Ultrasonography, Zhejiang Cancer Hospital, Gongsu District, Hangzhou 310022, China.
authors.forename: Lijing
authors.initials: L
authors.lastname: Wang
authors.affiliation: Department of Ultrasonography, Zhejiang Cancer Hospital, Gongsu District, Hangzhou 310022, China.
authors.forename: Xiangdong
authors.initials: X
authors.lastname: Cheng
authors.affiliation: Department of Ultrasonography, Zhejiang Cancer Hospital, Gongsu District, Hangzhou 310022, China; Email: ypfzmu@ 163.com.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Yu
authors.affiliation: Department of Ultrasonography, Zhejiang Cancer Hospital, Gongsu District, Hangzhou 310022, China.
authors.forename: Yian
authors.initials: Y
authors.lastname: Du
authors.affiliation: Department of Ultrasonography, Zhejiang Cancer Hospital, Gongsu District, Hangzhou 310022, China.
authors.forename: Litao
authors.initials: L
authors.lastname: Yang
authors.affiliation: Department of Ultrasonography, Zhejiang Cancer Hospital, Gongsu District, Hangzhou 310022, China.
authors.forename: Liyu
authors.initials: L
authors.lastname: Chen
authors.affiliation: Department of Ultrasonography, Zhejiang Cancer Hospital, Gongsu District, Hangzhou 310022, China.
authors.forename: Jiangping
authors.initials: J
authors.lastname: Yu
mesh_terms: D019160:Endosonography; D006801:Humans; D008207:Lymphatic Metastasis; D009369:Neoplasms; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed