title: [Clinical significance of the parameters of prostate volume measured by TRUS in evaluating bladder outlet obstruction].
abstract: OBJECTIVE
  To explore the parameters of prostate volume measured by TRUS in diagnosing bladder outlet obstruction (BOO) from BPH.
  
  
  METHODS
  Prostate volume(PV), transition zone volume(TZV) and transition zone index (TZI) were measured with TRUS in 116 cases of BPH aged from 59-75. Urodynamics were conducted, including Qmax, Pdet. Qmax and AG value. The correlation analysis was performed among them.
  
  
  RESULTS
  PV, TZV and TZI were (69.7 +/- 45.9) ml, (43.5 +/- 25.6) ml and 0.57 +/- 0.14, respectively. Qmax, Pdet. Qmax and AG were (8.31 +/- 5.12) ml/s, (82.34 +/- 33.47) cm H2O and 66.72 +/- 30.46, respectively. IPSS and PSA were 25.3 +/- 4.7 and (4.12 +/- 3.64) ng/ml, respectively. The correlation analysis showed TZI (r = 0.742, P = 0.017) and TZV (r = 0.674, P = 0.031) were positively correlated with AG value. IPSS was positively correlated with TZV and TZI. There was also a positive correlation between PSA and PV, TZV and TZI.
  
  
  CONCLUSIONS
  As urodynamics, the parameters of prostate volume measured by TRUS are reliable to diagnose BOO due to BPH.
authors: Ultrasound Department, Qinghai Provincial Crops Hospital, Chinese People's Armed Police Forces, Xining, Qinghai 810000, China.
authors: Yan
authors: Y
authors: Wang
authors: Feng
authors: F
authors: Pei
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D008875:Middle Aged; D011467:Prostate / Q000000981:diagnostic imaging*; D017430:Prostate-Specific Antigen / Q000032:analysis; D011470:Prostatic Hyperplasia / Q000150:complications / Q000000981:diagnostic imaging*; D014463:Ultrasonography; D001748:Urinary Bladder Neck Obstruction / Q000000981:diagnostic imaging* / Q000209:etiology; D014563:Urodynamics
chemical_list: D017430:Prostate-Specific Antigen