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目的探讨尿道前列腺返流显像在前列腺内尿液返流(IPUR)诊断中的价值及IPUR在慢性前列腺炎(CP)发病中的作用。方法在CP患者中进行插管法与静脉注射法放射性核素尿道前列腺返流显像(UPRI),计算尿道前列腺返流比率(UPRR),评价UPRR与CP症状评分的关系。结果32例CP患者中875%(28例)存在IPUR,其UPRR值为76±39,正常对照组为18±12,两者间差异有显著性(t=325,P<001);插管法与静脉注射法UPRR在IPUR诊断中无明显差异(UPRR值分别为54±23和58±26)。CP患者UPRR与症状评分及IPSS、Qmax和MUCP有好的相关性,r分别为089、-087和091,P均<001。结论IPUR与CP发病有关,静脉注射法显像能较好地评价IPUR,并具有无创、简便的优点。
Objective To investigate the value of urethral prostatic regurgitation in the diagnosis of urinary reflux (IPUR) in the prostate and the role of IPUR in the pathogenesis of chronic prostatitis (CP). Methods UPRI (intubation and intravenous injection of radionuclide) was performed in patients with CP, and the urethral reflux ratio (UPRR) was calculated to evaluate the relationship between UPRR and symptom score of CP. Results There were IPUR in 875% (28 cases) of 32 CP patients, the UPRR value was 76 ± 39 and the normal control group was 18 ± 12, the difference was significant (t = 325, P <001). There was no significant difference in UPRR between intubation and intravenous injection (UPRR values of 54 ± 23 and 58 ± 26, respectively). UPRR in patients with CP and symptom score and I PSS, Qmax and MUCP have a good correlation, r were 0 89, -0 87 and 0 91, P <0 01. Conclusions IPUR is related to the pathogenesis of CP. Intravenous injection imaging can evaluate IPUR better, and has the advantages of non-invasive and simple.