Diagnostic performance of transrectal ultrasound for prostate volume estimation in men with benign prostate hyperplasia.

International Journal of Clinical Practice
Rotimi A DavidChigozie I Onyeze

Abstract

Despite transrectal ultrasound (TRUS) being regarded as gold standard for prostate volume estimation, concerns have been raised in the literature concerning its accuracy especially in men with above-average prostate volumes. We aimed to evaluate the performance of TRUS for prostate volume estimation in a cohort of sub-Saharan African men since they are known to have relatively large mean prostate volumes. This was a prospective study of 77 sub-Saharan African men who had open simple prostatectomy for benign prostate hyperplasia (BPH). Pre-operative TRUS determined total prostate volume (TPV) and transition zone volume (TZV). Following surgical enucleation, the adenoma was weighed (EPW) and its volume (EPV) also determined by fluid displacement. TRUS was repeated six weeks post-operatively to calculate the TRUS-estimated specimen volume (TESV). The mean EPV, EPW, TRUS-estimated TZV, TRUS-estimated TPV and TESV were 79.1 ± 62.9 ml, 79.1 ± 62.9 g, 53.3 ± 28.5 ml, 93.1 ± 48.9 ml and 69.9 ± 44.6 ml, respectively. Pearson's correlation showed a perfect relationship between EPW and EPV with no difference in their mean values (r = 1.000; P < .001). Pearson's correlation between TRUS-estimated TPV vs EPV, TRUS-estimated TZV vs EPV, and ...Continue Reading

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