title: [Prostatic weight estimation by the regression equation using transrectal ultrasonotomography].
abstract: The prostatic weight was evaluated in 264 patients with benign prostatic hyperplasia before transurethral resection of the prostate (TUR-P) by transrectal ultrasonotomography. In the first group of 121 among 132 patients, the weight of both the total prostate (EPWt) and the internal prostatic gland (EPWi) was estimated and compared to the actual weight of resected specimens (RPW). In the remaining 11 patients, EPWt was obtained but not EPWi because their prostatic gland echograms were obscure. The correlations between RPW and EPWi, and between RPW and EPWt in 121 patients were proved to be RPW = 0.999 EPWi-0.586 (r = 0.851), RPW = 0.537 EPWt-1.914 (r = 0.766), respectively. In the second group of 132 patients, the weight of the prostatic adenoma to be resected was estimated preoperatively by the measurement of EPWt and the application of the latter formula (CRPW). The correlation between RPW and CRPW was proved to be RPW = 0.930 CRPW-1.570 (r = 0.824). It is presumed from this study that preoperative estimation of EPWi or EPWt may be useful not only for selection of the treatment modality for BPH, namely TUR-P or open surgery, but also for prediction of an operation time in TUR-P.
authors.affiliation: Mishina Urological Office.
authors.forename: T
authors.initials: T
authors.lastname: Mishina
mesh_terms: D006801:Humans; D008297:Male; D008433:Mathematics; D009929:Organ Size; D011467:Prostate / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D011468:Prostatectomy / Q000379:methods; D011470:Prostatic Hyperplasia / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D014463:Ultrasonography / Q000379:methods