title: [An assessment of prostatic weight by ultrasound].
abstract: OBJECTIVE
  To analyze the utility of transvesical ultrasound in the estimation of prostate weight.
  
  
  METHODS
  A study was conducted on 50 patients with symptomatic prostatism, aged 54-82 years (mean 60). All the patients had a prostate volume estimation by ultrasound 15 days before surgery using the following formulas: AP x T x Cc x 0.52 cm; AP + T + Cc + 3 mm. All patients underwent surgery for benign obstructive prostatic disease; 25 by TURP and 25 by open surgery. The prostate tissue removed was compared with the US estimation.
  
  
  RESULTS
  AP x T x Cc x 0.52 cm was found to be the most accurate formula for prostates weighing less than 50 gm and AP + T + Cc + 3 mm the most accurate for prostates greater than 50 gm.
  
  
  CONCLUSIONS
  Our results show that not all formulas are applicable to all prostate sizes.
authors: Servicio de Urología, Clínica y Hospital de Especialidades de Occidente, Quetzaltenango, Guatemala.
authors: E A
authors: EA
authors: Granados
authors: H
authors: H
authors: de León
authors: R
authors: R
authors: Alcahe
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D008297:Male; D008875:Middle Aged; D009929:Organ Size; D011467:Prostate / Q000000981:diagnostic imaging* / Q000473:pathology; D011468:Prostatectomy; D011470:Prostatic Hyperplasia / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D014463:Ultrasonography / Q000379:methods / Q000706:statistics & numerical data