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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.