Department of Urology, Urological Cancer Center, Research Institute and Hospital of National Cancer Center, Goyang, Republic of Korea.
Biometrics Research Branch, Division of Cancer Epidemiology and Prevention, Research Institute and Hospital of National Cancer Center, Goyang, Republic of Korea.
Biomed Res Int. 2019 Mar 31;2019:7029450. doi: 10.1155/2019/7029450. eCollection 2019.
To evaluate the value of computed tomography (CT) and magnetic resonance imaging (MRI) in determining total prostate volume (TPV) for patients with colorectal cancer, as an alternative to transrectal ultrasonography (TRUS) of the prostate when TRUS is not an option.
We retrospectively evaluated the medical records of 122 male cancer patients who were referred to our urology department between 2014 and 2016 for voiding problems. They underwent colorectal surgery within 3 months; we estimated the correlations of the TPV measurements made using CT, MRI, and TRUS. A total of 122 TRUS, 88 MRI, and 34 CT images were reviewed repeatedly, twice by 2 independent urologists within 1 month after the initial evaluation. The correlations were statistically evaluated using a Bland-Altman plot and Spearman and Pearson correlation analyses.
Overall median age was 70.5 years and the median TPV, as measured using TRUS, CT, and MRI, was 33.2, 43.4, and 30.1 mL, respectively. There was a good correlation in TPV measured with CT (coefficient >0.7) and MRI (>0.8). There was not a good correlation between TRUS and preoperative and postoperative CT/MRI; preoperative CT/MRI had a higher correlation (>0.7) than postoperative CT/MRI (>0.8). When stratified by prostate volume, preoperative CT (>0.58-0.59) correlated better for <30 mL and preoperative MRI (0.70-0.75) correlated better for ≥30 mL.
The study showed that preoperative MRI had the best correlation with TRUS, especially in prostates ≥30 mL despite overestimations in CT and MRI measurements compared with TRUS.
评估计算机断层扫描（CT）和磁共振成像（MRI）在确定结直肠癌患者总前列腺体积（TPV）方面的价值，作为经直肠超声（TRUS）不可用时的替代方法。
我们回顾性评估了 2014 年至 2016 年间因排尿问题就诊于我院泌尿科的 122 名男性癌症患者的病历。他们在 3 个月内接受了结直肠手术；我们评估了使用 CT、MRI 和 TRUS 测量的 TPV 之间的相关性。共回顾了 122 次 TRUS、88 次 MRI 和 34 次 CT 图像，由 2 位独立泌尿科医生在初始评估后 1 个月内重复评估了 2 次。使用 Bland-Altman 图和 Spearman 和 Pearson 相关分析对相关性进行了统计学评估。
总体中位年龄为 70.5 岁，TRUS、CT 和 MRI 测量的 TPV 中位数分别为 33.2、43.4 和 30.1 mL。CT（相关系数>0.7）和 MRI（>0.8）测量的 TPV 相关性良好。TRUS 与术前和术后 CT/MRI 相关性差；术前 CT/MRI 的相关性更高（>0.7），术后 CT/MRI 的相关性更高（>0.8）。按前列腺体积分层时，<30 mL 时术前 CT（>0.58-0.59）相关性更好，≥30 mL 时术前 MRI（0.70-0.75）相关性更好。
研究表明，术前 MRI 与 TRUS 相关性最好，尤其是在前列腺体积≥30 mL 时，尽管与 TRUS 相比 CT 和 MRI 测量值存在高估。
