探讨CT及MRI在肾脏占位性病变诊断中的价值

Investigation on Value of CT and MRI in the Diagnosis of Renal Space-occupying Lesions

目的探讨CT和MRI在肾脏占位性病变诊断中的应用价值。方法选取我院肾内科、泌尿外科收治的经B超检查诊断为肾脏占位性病变的患者50例作为研究对象,均进一步行MRI和CT检查,与病理组织学诊断结果相比较,分析MRI、CT在肾脏占位性病变中的诊断价值。结果所选50例患者中,36例为恶性病变,14例为良性病变;CT检测诊断肾脏病变良恶性的敏感度、特异度、阳性预测值、阴性预测值分别为91.7%、71.4%、89.2%、77.0%,MRI诊断肾脏病变良恶性的敏感度、特异度、阳性预测值、阴性预测值分别为83.3%、68.8%、85.6%、64.7%,两种检查诊断效果间差异无统计学意义(P>0.05)。结论在肾占位性病变的诊断中,MRI与CT的诊断效果相当,临床应根据不同检查技术特点,选择适宜的检查方法,其中联合应用有助于提高肾脏占位性病变诊断水平。

Objective To study the CT and MRI in the diagnosis of renal space-occupying lesions. Methods Selected our hospital kidney internal medicine were diagnosed by B ultrasonic examination of 50 patients with renal space-occupying lesions as the research object,then having further lines of MRI and CT examination compared with histopathological diagnosis, and analyzed MRI and CT diagnostic value in renal space-occupying lesions. Results In 50 cases, 36 cases were malignant lesions,14 cases were benign lesions. CT diagnosis of kidney disease increased the sensitivity of the benign and malignancy,specific degree,positive predictive value, negative predictive value were 91.7%,71.4%,89.2% and 77.0% respectively,the sensitivity of benign and malignant of MRI in the diagnosis of kidney disease,specific degree,positive predictive value,negative predictive value were 83.3%,68.8%,85.6%,68.8%,there was no statistically significant difference between the two kinds of inspection diagnosis effect（P〈0.05）. Conclusion In the diagnosis of renal space-occupying lesions,MRI and CT diagnosis should be checked according to different technical characteristics which combined application helps to improve the level of diagnosis of renal space-occupying lesions.