title: Transesophageal echographic determination of aortic invasion by lung cancer.
abstract: BACKGROUND
  In planning lung cancer therapy, the possibility of mediastinal invasion merits attention. The results of CT and MRI in this respect are unsatisfactory, especially in determining aortic involvement.
  
  
  OBJECTIVE
  To determine the validity of transesophageal echography in proving the invasion of lung cancer into the aortic wall.
  
  
  METHODS
  Two hundred one patients with lung cancer abutting against the aorta were examined using transesophageal echography and CT. In 97 patients, the results of both imaging techniques were compared with the surgical/pathologic results.
  
  
  RESULTS
  In a vast majority, transesophageal echography leads to a definitive result while CT remains equivocal. Controlled by surgical/pathologic results in 97 patients, transesophageal echography yielded a diagnostic accuracy of 91.8%.
  
  
  CONCLUSIONS
  In lung cancer abutting against the aorta, the diagnostic procedure should be complemented by transesophageal echography if the therapeutic management depends on whether the aortic wall is invaded by the tumor or not.
authors.affiliation: Department of Pulmonary Medicine, Klinikum Hannover Heidehaus, Am Leineufer 70, 30171 Hannover, Germany.
authors.forename: Carsten
authors.initials: C
authors.lastname: Schröder
authors.forename: Bernd
authors.initials: B
authors.lastname: Schönhofer
authors.forename: Bernd
authors.initials: B
authors.lastname: Vogel
mesh_terms: D000368:Aged; D001013:Aorta, Thoracic / Q000473:pathology*; D002283:Carcinoma, Bronchogenic / Q000000981:diagnostic imaging* / Q000473:pathology*; D002289:Carcinoma, Non-Small-Cell Lung / Q000000981:diagnostic imaging* / Q000473:pathology*; D018288:Carcinoma, Small Cell / Q000000981:diagnostic imaging* / Q000473:pathology*; D017548:Echocardiography, Transesophageal; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D010994:Pleura / Q000473:pathology; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed