Abstract

ABSTRACT: BACKGROUND: Despite being formally included in the assessment of patients presenting with lower urinary tract symptoms (LUTS), transrectal ultrasonography (TRUS) is not routinely offered to these patients. Data exist on the superiority of TRUS over transabdominal ultrasound in accurately predicting prostate volume. OBJECTIVE: To evaluate which of these methods are more accurate in calculation of prostate volume. The volume is most commonly measured using the formula, prostate volume=height×width×length
/6, which is derived considering the gland as ellipsoid, PATIENTS AND METHODS: Thirty five patients aged (60-75) years; with mean age (65.1±4.016) years and mean of serum prostate specific antigen (PSA) (1.429±0.3149) complaining from LUTS due to benign prostatic hyperplasia (BPH) underwent suprapubic prostatectomy .TRUS was performed in all patients preoperatively and calculations of the prostate volume were made. These were compared with respective transabdominal calculations of the prostate volume as well as the enucleated specimen weight. RESULTS: TRUS slightly underestimated weight by (8.6%).while transabdominal U/S overestimated it by (94.3%). Pearson correlation analysis indicated TRUS as a better predictor of weight (0.661) at P-value of <0.001 (extremely significant) followed by transabdominal U/S (0.465) at P-Value of <0.01 (highly significant). CONCLUSION: TRUS is more accurate than transabdominal U/S in predicting adenoma volume in patients with BPH