title: Diagnostic accuracy of CT scan in staging resectable esophageal cancer.
abstract: BACKGROUND
  CT scan is an important tool in staging of esophageal cancer. Survival can be improved by providing neoadjuvant treatment which depends on stage of esophageal cancer. So it is very important to stage the disease accurately.
  
  
  METHODS
  The objective of this study is to determine diagnostic accuracy of CT scan to stage esophageal cancer. Ct scans of 62 patients included in the study were reviewed by a Consultant radiologist who was blinded to the final stage of tumour. Diagnostic accuracy measured by comparing with histopathological staging.
  
  
  RESULTS
  Accuracy, sensitivity and specificity of CT for T2 and T3 are 66%, 61%, 68% and 63%, 67%, 56% respectively. Accuracy, sensitivity and specificity of CT for presence of nodal disease are 65%, 59% and 75%.
  
  
  CONCLUSIONS
  Ct scan alone has low diagnostic accuracy for staging Esophageal Cancer.
authors.affiliation: Department of Surgery, Aga Khan University Hospital, Karachi, Pakistan.
authors.forename: Rizwan
authors.initials: R
authors.lastname: Sultan
authors.affiliation: Department of Radiology, Aga Khan University Hospital, Karachi, Pakistan.
authors.forename: Zishan
authors.initials: Z
authors.lastname: Haider
authors.affiliation: Department of Surgery, Aga Khan University Hospital, Karachi, Pakistan.
authors.forename: Tabish Umer
authors.initials: TU
authors.lastname: Chawla
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging* / Q000473:pathology; D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging* / Q000473:pathology; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D006801:Humans; D008198:Lymph Nodes / Q000000981:diagnostic imaging* / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed
keywords: Diagnostic Accuracy, CT scan, Esophageal Cancer, Staging, TNM.