title: [Diagnostic value of 2-dimentional ultrasonography and color Doppler flow imaging in primary bone tumor].
abstract: OBJECTIVE
  To explore the diagnostic value of 2-dimentional ultrasonography and color Doppler flow imaging (CDFI) in primary bone tumor.
  
  
  METHODS
  The hemodynamic parameters such as systolic maximum velocity (Vmax), diastolic minimum velocity (Vmin), resistance index (RI), and pulsatility index (PI) of intratumoral folw in 93 patients with primary bone tumors proved by histopathology were studied using 2-dimentional ultrasonography and CDFI techniques.
  
  
  RESULTS
  The bone destruction periosteum response and soft tissue mass were essentially revealed with 2-dimentional ultrasonography techniques. The intratumoral flow features were clearly shown by CDFI. The Vmax and Vmin in malignant bone tumor were significantly higher than those in benign one (P < 0.01). RI and PI in malignant bone tumor were lower than those in benign one (P < 0.01).
  
  
  CONCLUSIONS
  Observing the features of bone tumor and hemodynamic parameters by 2-dimentional ultrasonography and CDFI has a great clinical value in diagnosing primary bone tumor and distinguishing the malignant and benign bone tumors.
authors.affiliation: Department of Ultrasonics, Second Xiangya Hospital, Central South University Changsha, China. Lxmxy2.cs@163.com
authors.forename: Xiu-mei
authors.initials: XM
authors.lastname: Liu
authors.forename: Wan-chun
authors.initials: WC
authors.lastname: Wang
authors.forename: Ming-hui
authors.initials: MH
authors.lastname: Liu
authors.forename: Qi-chang
authors.initials: QC
authors.lastname: Zhou
mesh_terms: D000293:Adolescent; D000328:Adult; D001783:Blood Flow Velocity; D001859:Bone Neoplasms / Q000000981:diagnostic imaging*; D005260:Female; D018212:Giant Cell Tumor of Bone / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D012516:Osteosarcoma / Q000000981:diagnostic imaging*; D018615:Ultrasonography, Doppler, Color / Q000379:methods*; D018616:Ultrasonography, Doppler, Duplex / Q000379:methods