title: [The effects of CDFI and CDE high-frequency ultrasonography on diagnosis of parotid neoplasm].
abstract: OBJECTIVE
  To evaluate the effects of high-frequency color ultrasonography on diagnosis of parotid tumors.
  
  
  METHODS
  36 cases of parotid benign or malignant tumors were observed from margin to inner with color Doppler flow imaging (CDFI) and color Doppler energy (CDE) according to tumors' two dimention.
  
  
  RESULTS
  The features of benign tumors included round or round-like shapes, clear margins and inner balanced echogram. The margin feature of CDFI was star-like images, and the peak systolic celocity was up to 18.6 and 16.2 cm/s. The coincidence of diagnosis was 90%. Meanwhile, the shapes of malignant tumors showed irregular and incomplete mass and asymmetrical inner echogram. The primary characteristics of CDFI were branch-like or basket-like images, and the peak systolic velocity was much higher (35.2 and 32.4 cm/s) than that of benign tumors. There was significant difference between these two groups (P < 0.05). It indicated richer flow signals in CDE than in CDFI.
  
  
  CONCLUSIONS
  CDFI and CDE show an important clinical value in diagnosing parotid neoplasm.
authors.affiliation: Department of Stomatology, Tongji Hospital, Tongji Medical University.
authors.forename: S
authors.initials: S
authors.lastname: Zhu
authors.forename: X
authors.initials: X
authors.lastname: Wang
mesh_terms: D000328:Adult; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010307:Parotid Neoplasms / Q000000981:diagnostic imaging*; D018615:Ultrasonography, Doppler, Color