摘要
目的探讨良性前列腺增生fBPH）和前列腺癌（PCa）的多层CT（MSCD多期扫描的强化特征。方法35例BPH和27例PCa病人术前行MSCT扫描，观察BPH和PCa的CT强化峰值到达的期相、最大强化幅值及时间-密度曲线，并计算曲线升段的斜率。结果两组病例强化峰值到达的期相及时间-密度曲线类型分布的差异有统计学意义（P〈0．01）。BPH和PCa的斜率分别为0．45±0．25和0．76±0．34，PCa的斜率大于BPH的斜率（P〈0．05）。而BPH和PCa的最大强化幅值分别为（44．057±10．261）HU和（46．778±11．140）HU，两组之间的差异无统计学意义（P〉0．05）。结论MSCT多期扫描能够显示BPH、PCa的血供情况及强化特征，对前列腺病灶的显示和鉴别诊断起重要作用。
Objective To investigate the multi-phase contrast-enhanced features of multi-slice computed tomography （MSCT） of benign prostatic hyperplasia （BPH） and prostate cancer （PCa）. Methods Thirty-five BPH and twentyseven PCa were examined with multi-phase contrast-enhanced MSCT scan. The peak time, maximum attenuation value （MAV） and time density curve （TDC） were recorded, and the slope of the contrast media uptake curve was calculated. Result Significant differences between BPH and PCa in the type of the curves and the peak time were observed （P〈O.01）. The slopes of BPH and PCa were 0.45-＋0.25 and 0.76_＋0.34 respectively, the slope of PCa was higher than that of BPH （P〈0.05）. MAVs of BPH and PCa were （44.057±10.261） HU and （46.778±11.140） HU respectively, and there was no significant difference between them （P〉0.05）. Conclusion The multi-phase MSCT scan can reflect the blood supply and enhancement characters of BPH and PCa, which are important in detection and differential diagnosis of the prostate diseases.
出处
《国际医学放射学杂志》
2009年第5期417-420,共4页
International Journal of Medical Radiology
基金
国家自然科学基金(30470518)
山东省1020(卫生系统杰出学科带头人和中青年重点科技人才)工程专项基金(2004-15,2006-39)
潍坊医学院青年教师科研启动基金(KQ2007014)
