高场强核磁共振在前列腺癌术前诊断及分期中的应用价值

Clinical value of 3T magnetic resonance imaging in the staging diagnosis and preoperative evaluation of prostate cancer

目的探讨高场强核磁共振检查在前列腺癌诊断和术前分期中的作用。方法选择该院收治的68例术后病理证实为前列腺癌的患者为观察对象,所有患者均接受术前3.0T高场强核磁共振检查,分析患者的临床诊断和术前影像学分期,并与术后病理学分期结果进行比较。结果该组磁共振检查前列腺癌术前分期的诊断准确率达到77.9%(53/68),B期患者诊断特异度(92.2%)最高,D期患者诊断敏感度(90.5%)和准确度(92.3%)最高。MRI术前分期与术后病理分期结果有显著相关性(P<0.05)。结论 3.0 T高场强核磁共振应用于前列腺癌的术前诊断和分期判断,具有较高的临床应用价值。

【Objective】To explore the clinical value of 3T magnetic resonance imaging in the staging diagnosis and preoperative evaluation of prostatic carcinoma.【Methods】68 cases of pathologically confirmed prostatic carcinoma were enrolled as observation group, all patients underwent preoperative 3T magnetic resonance examination,and the clinical data and preoperative staging results were retrospectively analyzed. The MRI staging of the carcinoma before surgical resection was compared with the pathological staging of the malignancy after radical prostatectomy.【Results】The diagnostic accuracy of preoperative MRI staging in this group reached 77.9%（53/68）, the diagnostic specificity was highest in staging B subgroup, and the diagnosis sensitivity and accuracy were highest in staging D subgroup. There were significantly correlation betweenpreoperative MRI staging and pathological staging（P 〈0.05）.【Conclusion】3T magnetic resonance imaging applied to prostatic carcinoma preoperative diagnosis and staging hasa high clinical value.