title: JOG Technique Versus Nonspiral Axial Scan in Pancreatic Perfusion Computed Tomography Imaging and Their Preliminary Application.
abstract: OBJECTIVE
  The aim of this study was to investigate the advantages and disadvantages of JOG technique in pancreatic perfusion computed tomography (CT) imaging.
  
  
  METHODS
  First, 40 male patients with nonpancreatic diseases, aged 40 to 60 years, were averagely assigned into 2 groups (A and B). Patients in group A and B underwent nonspiral axial perfusion and JOG technique CT scans of the pancreas, respectively. Second, 23 patients with pancreatic masses were randomly assigned into nonspiral axial scan and JOG groups.
  
  
  RESULTS
  There were no significant differences in all perfusion parameters among the pancreatic head, body, and tail within groups (P > 0.05). Perfusion and time to peak of the pancreatic head, body, and tail differed significantly between groups A and B (P < 0.05). There were significant differences in perfusion parameter values between pancreatic carcinoma tissue and normal pericarcinoma tissue in the nonspiral axial scan group. In the JOG group, perfusion and time to peak differed significantly (P < 0.05).
  
  
  CONCLUSIONS
  The JOG technique should be cautiously selected on pancreatic perfusion CT scans.
authors.affiliation: From the Department of Radiology, Third Affiliation Hospital, Nantong University, Wuxi, Jiangsu Province, China.
authors.forename: Yunjuan
authors.initials: Y
authors.lastname: Yin
authors.forename: Jianwei
authors.initials: J
authors.lastname: Jiang
mesh_terms: D000328:Adult; D001783:Blood Flow Velocity; D000072226:Computed Tomography Angiography / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D061330:Multidetector Computed Tomography / Q000379:methods; D009389:Neovascularization, Pathologic / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D010865:Pilot Projects; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity