title: Staging of laryngeal carcinoma: comparison of high-frequency sonography and contrast-enhanced computed tomography.
abstract: OBJECTIVE
  To evaluate the accuracy of high-frequency sonography on pretherapeutic T-staging in patients with laryngeal carcinoma.
  
  
  METHODS
  Thirty-six consecutive patients with laryngeal carcinoma undergoing surgical resection were included in this study. All patients underwent ultrasonographic examination and contrast-enhanced computed tomography before surgery. These imaging interpretations were evaluated independently and then compared with the reference of postoperative pathological examination. McNemar's test was used for comparing the data obtained separately from ultrasonography and computed tomography.
  
  
  RESULTS
  There was one T2 stage tumour of an aryepiglottic fold undetected by sonography. Sonography failed to stage five tumours correctly; the T-staging accuracy was 83.3%. Contrast-enhanced computed tomography failed to stage four patients correctly; the T-staging accuracy was 88.8%. There was no difference between the pretherapeutic staging accuracy of ultrasonography and contrast-enhanced computed tomography (p=0.735).
  
  
  CONCLUSIONS
  Ultrasonography has a reliable pretherapeutic staging accuracy of laryngeal carcinoma. It can be a non-invasive complementary technique for pretherapeutic staging of laryngeal carcinoma.
authors.affiliation: Department of Diagnostic Ultrasound, The People's Hospital of Guangxi Zhuang Autonomous Region, China.
authors.forename: Q
authors.initials: Q
authors.lastname: Hu
authors.forename: F
authors.initials: F
authors.lastname: Luo
authors.forename: S Y
authors.initials: SY
authors.lastname: Zhu
authors.forename: Z
authors.initials: Z
authors.lastname: Zhang
authors.forename: Y P
authors.initials: YP
authors.lastname: Mao
authors.forename: X
authors.initials: X
authors.lastname: Hui Guan
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002277:Carcinoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D003287:Contrast Media; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D007822:Laryngeal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D003287:Contrast Media