PI-RADS V2提高前列腺癌影像诊断效能的价值评估

发布时间：2018-03-07 21:05

  本文选题：前列腺肿瘤　切入点：磁共振成像　出处：《第三军医大学学报》2017年18期 　论文类型：期刊论文

【摘要】：目的探讨前列腺影像报告和数据系统第2版(PI-RADS V2)提高前列腺癌影像诊断效能的应用价值。方法初级、中级、高级职称医师各3名,根据各自经验分别对符合入组标准的76例前列腺MRI图像进行经验评分,然后根据PI-RADS V2的评分标准进行2次评分。分析2次PI-RADS V2评分及3个层次医师PI-RADS V2评分的一致性。计算并比较3个层次医师经验评分与PI-RADS V2评分的相关性、经验诊断与PI-RADS V2诊断结果的一致性,对比前列腺癌检出的敏感度、特异度、阳性预测值、阴性预测值,并绘制ROC曲线。结果 2次PI-RADS V2评分结果高度一致,3个层次医师PIRADS V2评分具有较好一致性,3个层次医师经验诊断评分与PI-RADS V2评分正相关(r值分别为0.672、0.805、0.890)。3个层次医师及PI-RADS V2诊断正确率呈递增趋势,无效率呈递减趋势,错误率3个层次医师呈递减趋势,PI-RADS V2错误率略高于高级医师。ROC曲线结果显示高级医师的诊断准确性最高,其次为PI-RADS V2。PI-RADS V2诊断敏感度最高,其次为高级医师。高级医师特异度最高,其次为PI-RADS V2。结论 PI-RADS V2具有良好的可重复性,对于中级、初级医师,PI-RADS V2可以显著提高其对前列腺癌影像诊断效能。
[Abstract]:Objective to explore the value of PI-RADS V2) in improving the diagnostic efficacy of prostate cancer. According to their own experiences, 76 cases of prostate MRI were evaluated according to the criteria of admission. Then according to the PI-RADS V2 scoring standard, the consistency of the two PI-RADS V2 scores and the PI-RADS V2 scores of the 3 levels of physicians was analyzed. The correlation between the three levels of physician experience scores and the PI-RADS V2 score was calculated and compared. The sensitivity, specificity, positive predictive value, negative predictive value of prostate cancer were compared between empirical diagnosis and PI-RADS V2 diagnosis. The ROC curve was drawn. Results the results of PI-RADS V2 scores were highly consistent twice, and the PIRADS V2 scores of 3 levels of physicians had good consistency. The positive correlation between the three levels of physicians' experience diagnosis score and PI-RADS V2 score was 0.672 / 0.805 / 0.890, respectively. The diagnostic accuracy of PI-RADS V2 and PI-RADS V2 showed an increasing trend. The failure rate showed a decreasing trend, and the error rate of PI-RADS V2 was slightly higher than that of the senior physician .ROC curve showed that the diagnostic accuracy of the senior physician was the highest, followed by the diagnosis sensitivity of PI-RADS V2.PI-RADS V2. The second was senior physician. The specificity of senior physician was the highest, the second was PI-RADS V2.Conclusion PI-RADS V2 has good reproducibility. For intermediate level, PI-RADS V2 can significantly improve the diagnostic efficacy of PI-RADS V2 in prostate cancer.
【作者单位】： 重庆医科大学附属第二医院放射科;
【基金】：国家自然科学基金青年科学基金(81401382) 重庆市卫生计生委医学科研项目(2016MSXM024)~~
【分类号】：R445.2;R737.25
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