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首页> 外文期刊>Acta Radiologica >Malignant renal cysts: diagnostic performance and strong predictors at MDCT.
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Malignant renal cysts: diagnostic performance and strong predictors at MDCT.

机译：恶性肾囊肿：MDCT的诊断性能和强预测指标。

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BACKGROUND: Utilization of multidetector-row CT (MDCT) is anticipated to improve the diagnostic accuracy and reliability for determining malignant cysts. PURPOSE: To assess the diagnostic accuracy, interobserver agreement, benefit of consensus reading, and strong predictors of malignancy in determining malignant cystic renal masses at MDCT. MATERIAL AND METHODS: Two radiologists independently rated the probability of malignancy at MDCT in 72 benign and 53 malignant cysts. The accuracy and interobserver agreement for determining malignant cysts were evaluated. The strong predictors of malignancy were determined, and in patients with interobserver disagreement for determining malignant cysts, consensus readings were performed. RESULTS: Az value of the two readers was 0.905-0.936 and the sensitivity and specificity were 85-89% and 83-93%, respectively. The overall interobserver agreement for determining the malignant cyst was good as the kappa value was 0.696 (% agreement, 61% (76/125)). Thickened irregular wall, thickened irregular septa, and enhancing soft tissue component were strong predictors for malignancy with both readers. In the 17 patients with interobserver disagreement for determining malignant cysts, the sensitivity was improved from 38-63% to 89% by the consensus reading. CONCLUSION: At MDCT, some false negative decisions for determining malignant cysts can be corrected by consensus reading, and thickened irregular septa, thickened irregular wall, and enhancing soft tissue component are the strong predictors of malignant cysts.
机译：背景：多排行CT（MDCT）的使用有望提高诊断恶性囊肿的诊断准确性和可靠性。目的：评估MDCT确定恶性囊性肾肿块的诊断准确性，观察者间的共识，共识阅读的益处以及恶性的强预测指标。材料与方法：两名放射科医生对72例良性和53例恶性囊肿在MDCT上的恶性可能性进行了独立评估。评价了确定恶性囊肿的准确性和观察者之间的一致性。确定了强烈的恶性预测指标，并且在观察者间意见不一致的患者中确定恶性囊肿的情况下，进行了共识性阅读。结果：两个阅读器的Az值为0.905-0.936，灵敏度和特异性分别为85-89％和83-93％。由于kappa值为0.696（观察者一致，61％（76/125）），因此用于确定恶性囊肿的总体观察者一致性良好。两名读者均认为，不规则的壁增厚，不规则的间隔增厚和软组织成分增强是发生恶性肿瘤的重要预测指标。在17位观察者间不一致的患者中确定恶性囊肿的方法中，通过共识阅读，敏感性从38-63％提高到89％。结论：在MDCT上，可以通过共识阅读来纠正一些确定恶性囊肿的假阴性决定，并且不规则间隔增厚，不规则壁增厚和软组织成分增强是恶性囊肿的重要预测指标。

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