title: Correlation of MRI-detected extramural vascular invasion with regional lymph node metastasis in rectal cancer.
abstract: OBJECTIVE
  To evaluate the value of magnetic resonance imaging-detected extramural vascular invasion (MR-EMVI) in predicting regional lymph node metastasis (RLNM) in patients with rectal cancer.
  
  
  METHODS
  A total of 183 patients were included. A set of clinical and imaging factors including MR-EMVI were evaluated using univariate and multivariate analyses to determine the risk factors for RLNM.
  
  
  RESULTS
  Among the clinical and imaging factors evaluated, MR-EMVI, pathologic EMVI, nodal size, and diffusion-weighted imaging-detected positive nodes were independent predictors of RLNM.
  
  
  CONCLUSIONS
  MR-EMVI may be an independent predictor of RLNM in patients with rectal cancer.
authors.affiliation: Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
authors.forename: Liheng
authors.initials: L
authors.lastname: Liu
authors.affiliation: Department of Radiation Oncology, Shandong Cancer Hospital and Institute, School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Liu
authors.affiliation: Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
authors.forename: Zhenghan
authors.initials: Z
authors.lastname: Yang
authors.affiliation: Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
authors.forename: Wen
authors.initials: W
authors.lastname: He
authors.affiliation: Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
authors.forename: Zhenchang
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China. Electronic address: drerhujin@163.com.
authors.forename: Erhu
authors.initials: E
authors.lastname: Jin
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D012004:Rectal Neoplasms / Q000175:diagnosis / Q000556:secondary*; D012307:Risk Factors; D019043:Vascular Neoplasms / Q000473:pathology*
keywords: Extramural vascular invasion; Lymph nodes metastasis; Magnetic resonance imaging; Rectal cancer