title: Correlation of transrectal and transabodominal ultrasound measurement of transition zone volume with post-operative enucleated adenoma volume in benign prostatic hypertrophy.
abstract: BACKGROUND
  Benign prostatic hyperplasia is a common disease of ageing men worldwide. Though transrectal ultrasonography (TRUS) is the standard in most parts of the world in evaluation of benign prostatic hyperplasia (BPH), it is rarely done in some less developed countries because of non availability of appropriate probes and or specialists. Transabdominal ultrasonography (TAUS) remains the mainstay in these areas. Some controversies still exist in literature about the accuracy of TAUS evaluation of prostatic volume in patients with BPH. This study aimed at comparing the transition zone volume estimation of the prostate on transrectal and transabdominal ultrasound with post-operative enucleated adenoma volume in Nigeria patients with BPH and to suggest better predictor of prostate volume in evaluation of BPH.
  
  
  METHODS
  Forty-six (46) patients with lower urinary tract symptoms due to BPH attending the urologic clinic were evaluated ultrasonographically and eventually managed with open surgery (prostatectomy) after due counselling. The post operative samples were weighted using a sensitive top loading weighing balance and converted to volume. Since the specific gravity of the prostate is equivalent to that of water,the weight is the same as volume.
  
  
  RESULTS
  Patients' ages ranged between 59 and 90 years with a peak age incidence at seventh decade. Transition Zone (TZ) volume estimation on both transrectal and transabdominal ultrasound showed positive correlation with the post operative enucleated adenoma(r = 0.594, p < 0.001) but the transrectal method was more accurate. There was no significant relationship between the TZ volume and patients' symptoms(r = 0.491, p = 0.007).
  
  
  CONCLUSIONS
  Both TRUS and TAUS are comparable at TZ volume estimation and therefore TAUS can be utilized in regions where intracavitary probes and or the expertise is/are not available.
authors.affiliation: Radiology Department, Federal Medical Centre, Ido-Ekiti, Ekiti State, Nigeria.
authors.forename: Idowu
authors.initials: I
authors.lastname: Ajayi
authors.affiliation: Radiology Department, Ladoke Akintola University Of Technology, Ogbomoso, Oyo State, Nigeria.
authors.forename: Ademola
authors.initials: A
authors.lastname: Aremu
authors.affiliation: Urology Department, Ladoke Akintola University Of Technology, Ogbomoso, Oyo State, Nigeria.
authors.forename: Abimbola
authors.initials: A
authors.lastname: Olajide
authors.affiliation: Radiology Department, Ladoke Akintola University Of Technology, Ogbomoso, Oyo State, Nigeria.
authors.forename: Tope
authors.initials: T
authors.lastname: Bello
authors.affiliation: Community Health Department, Obafemi Awolowo, University, Ile-Ife, Osun State, Nigeria.
authors.forename: Folake
authors.initials: F
authors.lastname: Olajide
authors.affiliation: Radiology Department, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria.
authors.forename: Victor
authors.initials: V
authors.lastname: Adetiloye
mesh_terms: D000236:Adenoma / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011468:Prostatectomy; D011470:Prostatic Hyperplasia / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D015203:Reproducibility of Results; D014463:Ultrasonography; D036761:Ultrasound, High-Intensity Focused, Transrectal / Q000379:methods
keywords: Prostatic hyperplasia; enucleated adenoma; transrectal ultrasonography