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目的探讨64排螺旋CT灌注成像对良性前列腺增生(benign prostatic hyperplasic,BPH)的诊断价值。方法选择2006年8月-2010年5月张家口市第一医院收治的BPH 80例,另选择正常前列腺15例为对照组。各组均行64排螺旋CT灌注成像技术检查,对比各组灌注参数之间的差异。结果 BPH的TDC曲线为缓升型。BPH组的BF、PS、TTP明显高于对照组(P<0.05),MTT、TTP值明显小于对照组(P<0.05)。各级别BPH均呈现均匀灌注,四个灌注参数比较除BV外,BF、PS、MTT、TTP差异均无统计学意义(P>0.05)。BPH各级别间两两比较,BF、PS、MTT、TTP差异均无统计学意义(P>0.05),而BPHⅡ和BPHⅢ的BV值均明显大于BPHI组,BPHⅢ大于BPHⅡ组,差异均有统计学意义(P<0.05)。结论 64排螺旋CT灌注成像BV值的升高对BPH具有重要的诊断价值,但灌注成像无法对BPH进行分级。
Objective To investigate the diagnostic value of 64-slice spiral CT perfusion imaging in benign prostatic hyperplasic (BPH). Methods Eighty cases of BPH admitted to the First Hospital of Zhangjiakou from August 2006 to May 2010 were selected, and 15 cases of normal prostate were selected as the control group. All groups were examined by 64-slice spiral CT perfusion imaging, and the difference between the perfusion parameters in each group was compared. Results BPH TDC curve for the ramp-up. BF, PS and TTP in BPH group were significantly higher than those in control group (P <0.05), MTT and TTP values were significantly lower than those in control group (P <0.05). There was no significant difference in BF, PS, MTT and TTP between the two groups (P> 0.05). There were no significant differences in the BF, PS, MTT and TTP between BPH and other groups (P> 0.05), while the BV values of BPHⅡand BPHⅢwere significantly higher than that of BPHI group and BPHⅢgroup was higher than that of BPHⅡgroup Significance (P <0.05). Conclusion The increase of BV value in 64-slice spiral CT perfusion imaging has important diagnostic value for BPH, but perfusion imaging can not grade BPH.