Ajayi Idowu, Aremu Ademola, Olajide Abimbola, Bello Tope, Olajide Folake, Adetiloye Victor
Radiology Department, Federal Medical Centre, Ido-Ekiti, Ekiti State, Nigeria.
Radiology Department, Ladoke Akintola University Of Technology, Ogbomoso, Oyo State, Nigeria.
Pan Afr Med J. 2013 Dec 20;16:149. doi: 10.11604/pamj.2013.16.149.2532. eCollection 2013.
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.
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.
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).
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.
良性前列腺增生是全球老年男性的常见疾病。虽然经直肠超声检查（TRUS）在世界大部分地区是评估良性前列腺增生（BPH）的标准方法，但在一些欠发达国家，由于缺乏合适的探头和/或专家，很少进行此项检查。经腹超声检查（TAUS）仍是这些地区的主要检查方法。关于TAUS评估BPH患者前列腺体积的准确性，文献中仍存在一些争议。本研究旨在比较尼日利亚BPH患者经直肠和经腹超声对前列腺移行区体积的估计与术后摘除腺瘤体积，并提出在评估BPH时更好的前列腺体积预测指标。
对46例因BPH出现下尿路症状并在泌尿外科门诊就诊的患者进行超声检查，并在适当咨询后最终接受开放手术（前列腺切除术）治疗。术后样本使用灵敏的顶载天平称重并换算成体积。由于前列腺的比重与水相当，重量与体积相同。
患者年龄在59岁至90岁之间，发病高峰年龄在七十多岁。经直肠和经腹超声对移行区（TZ）体积的估计均与术后摘除的腺瘤呈正相关（r = 0.594，p < 0.001），但经直肠方法更准确。TZ体积与患者症状之间无显著关系（r = 0.491，p = 0.007）。
在TZ体积估计方面，TRUS和TAUS具有可比性，因此在无法获得腔内探头和/或专业技术的地区可使用TAUS。
