血清各项前列腺特异性抗原数值联合磁共振弥散加权中表观扩散系数及波谱成像对前列腺特异性抗原灰区前列腺癌的诊断应用  被引量:7

The diagnostic value of serum prostate specific antigen combined with value of apparent diffusion coefficient in diffusion weighted imaging and magnetic resonance spectroscopy in prostate cancer of prostate specific antigen gray zone

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作  者:李浩[1] 王晓东[1] 郜乐 马彬[1] 

机构地区:[1]新疆医科大学第二附属医院泌尿外科,乌鲁木齐830063

出  处:《中国医师进修杂志》2016年第3期249-253,共5页Chinese Journal of Postgraduates of Medicine

摘  要:目的探讨血清中各项前列腺特异性抗原(PSA)[游离PsA(1PSA)、总PSA(tPSA)、前列腺特异性抗原比值(fPSA,tPSA)]联合磁共振弥散加权中表观扩散系数(ADC)及波谱成像在tPSA4—10μg,L前列腺癌(PSA灰区前列腺癌,PCa)的诊断价值。方法选取2013年12月至2015年2月诊治的血清tPSA值为4—10μg/L的老年患者56例,其中26例为PCa,30例为前列腺增生(BPH),均经病理检查确诊,收集tPSA、fPSA数据,计算fPSMtPSA、前列腺特异性抗原密度(PSAD),根据磁共振弥散加权计算ADC值,波谱分析计算[胆碱(Cho)+肌酸(Cre)],枸橼酸盐(Cit)比值,用受试者工作特征(ROC)曲线分析ADC值及(Cho+Cre)/Cit比值联合PSAD及fPSMtPSA对PCa的诊断价值。结果PCa组和BPH组tPSA比较差异无统计学意义(P〉0.05),两组fPSA、fPSMtPSA、前列腺体积、PSAD、(Cho+Cm)/Cit、ADC比较差异均有统计学意义[(1.04±0.14)μg/L比(1.22±0.34)μg/L、0.15(0.14~0.16)比0.17(0.15—0.18)、(41.45±5.70)cm。比(48.70±9.97)cm3.0.17(0.15—0.18)ng(ml·cm3)比0.16(0.14—0.17)ng/(ml·cm3)、2.22±0.59比1.17±O.52、0.98±0.28比1.39±0.24](P〈0.01或〈0.05)。fPSMtPSA+PSAD+(Cho+Cre)/Cit、fPSA/tPSA+PSAD十ADC、fPSMtPSA+PSAD+(Cho+Cre)/Cit+ADC的曲线下面积(AUC)分别为0.932、0.941、0.977,均高于fPSAhPSA+PSAD的0.771,差异有统计学意义(P〈0.01),且fPSA,fPSA+PSAD+(Cho+Cre)/Cit+ADC的AUC最高。结论PSAD及fPSMtPSA联合MRI的ADC值及波谱分析可应用于PCa的诊断。Objective To investigate the diagnostic value of prostate specific antigen (PSA) (fPSA, fPSA/tPSA, PSAD) combined with value of apparent diffusion coefficient (ADC) in diffusion weighted imaging (DWI) and magnetic resonance spectroscopy (MRS) in the diagnosis of prostate cancer (PCa) between total PSA (tPSA) 4- 10 μg/L. Methods From December 2013 to 2015 February, 56 elderly male patients with serum tPSA 4 - 10 μg/L were enrolled. Pathological examination confirmed 26 patients with PCa and 30 patients with benign prostatic hyperplasia (BPH). The levels of tPSA and free PSA(fPSA) , fPSA/tPSA, Prostate specific antigen density(PSAD), ADC value according to the DWI, choline(Cho), creatine(Cre) and citrate(Cit) in MRS were analyzed, and ADC, (Cho + Cre)/Cit combined with PSAD and fPSA/tPSA in PCa diagnosis was analyzed by receiver operating characteristic curve (ROC). Results The level of tPSA in PCa group and BPH group had no significant difference (P 〉 0.05), but the levels of fPSA, fPSA/tPSA, prostate volume, PSAD, (Cho + Cre)/Cit, ADC had significant difference: (1.04 ±0.14) μg/L vs. (1.22 ± 0.34) μg/L, 0.15(0.14- 0.16) vs. 0.17(0.15-0.18), (41.45 ± 5.70) cm3 vs. (48.70 ± 9.97) cm3, 0.17(0.15 - 0.18) ng/(ml.cm3) vs. 0.16(0.14- 0.17) ng/(ml.cm3), 2.22 ± 0.59 vs. 1.17 ± 0.52, 0.98± 0.28 vs. 1.39 :i: 0.24, P 〈 0.01 or 〈 0.05. The area under the curve of (AUC) fPSA/tPSA + PSAD + (Cbo + Cre)/Cit, fPSA/tPSA + PSAD + ADC, fPSA/tPSA + PSAD + (Cho+Cre)/Cit+ADC were 0.932, 0.941 and 0.977, and the AUC of fPSA/tPSA+PSAD+(Cho+Cre)/Cit+ ADC was the highest. Conclusions PSAD and fPSA/tPSA and the value of ADC in DWI and MRS can be used in diagnosis of PCa.

关 键 词:前列腺肿瘤 前列腺特异性抗原 磁共振成像 弥散 表观弥散系数 

分 类 号:R737.25[医药卫生—肿瘤]

 

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