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目的评价经直肠多普勒超声定量参数诊断前列腺结节良、恶性的临床应用价值。方法应用彩色多普勒超声(CDUS)和能量多普勒超声(PDUS)及彩色血流分析软件,记录52例患者共67个前列腺结节的峰值血流指数(PVI),并比较不同多普勒超声条件下前列腺良、恶性结节组间PVI的差异。并对两种方法测得的PVI行受试者工作特征(ROC)分析。结果CDUS测得32个前列腺恶性结节PVI显著高于35个前列腺良性结节[(0.38±0.16)vs.(0.24±0.19)(P<0.05)。PDUS测得前列腺恶性结节的PVI显著高于良性结节[(0.55±0.18)vs.(0.32±0.21)(P<0.05)。PDUS测得的PVI对前列腺癌的血流定量评估更具优越性。结论多普勒定量参数PVI是鉴别前列腺肿瘤良恶性的有效指标。
Objective To evaluate the clinical value of transrectal Doppler ultrasound in the diagnosis of benign and malignant prostate nodules. Methods The peak flow index (PVI) of 67 prostatic nodules in 52 patients were recorded by color doppler ultrasound (CDUS), energy Doppler sonography (PDUS) and color flow analysis software, and compared with different doppler The difference of PVI between benign and malignant nodules under ultrasonic condition in Le. The receiver operating characteristic (ROC) analysis of the two methods was also performed. Results The CDV of 32 malignant prostatic malignancies was significantly higher than that of 35 benign prostatic nodules (0.38 ± 0.16 vs. 0.24 ± 0.19, P <0.05). The PVI of malignant prostatic nodules detected by PDUS was significantly higher than that of benign nodules [(0.55 ± 0.18) vs. (0.32 ± 0.21) vs. (P <0.05). PDI measured PVI for prostate cancer blood flow quantitative evaluation of more advantages. Conclusions Doppler quantitative parameter PVI is an effective index for differentiating benign and malignant prostatic tumors.