论文部分内容阅读
目的探讨磁敏感加权成像(SWI)在评价肾透明细胞癌(CCRCC)瘤内出血中的价值。方法回顾性分析经病理证实的34例CCRCC患者的CT、常规MRI及SWI图像,选取肿瘤最大横断面作为观察瘤内出血的感兴趣层面,分别用三种影像方法诊断瘤内出血及出血类型,并与大体病理进行对照。分别采用卡方检验比较SWI与CT、SWI与常规MRI成像方法诊断瘤内出血及出血类型的病例数差异。结果大体病理34例均可见出血灶。CT诊断6例有瘤内出血,其中4例出血类型与病理所见一致;常规MRI诊断23例有瘤内出血,其中11例出血类型与病理所见一致;SWI诊断34例均有瘤内出血,34例出血类型与病理所见完全一致。SWI诊断CCRCC瘤内出血率、大面积出血率及片状出血率均显著高于CT(χ2=47.000、10.372、21.402,P=0.000、0.001、0.000)与常规MRI(χ2=13.123、10.372、4.976,P=0.000、0.001、0.026)。结论较之CT与常规MRI,SWI能更准确地评价CCRCC瘤内出血及出血类型。
Objective To investigate the value of magnetic resonance weighted imaging (SWI) in the evaluation of intratumoral hemorrhage in renal clear cell carcinoma (CCRCC). Methods The CT, routine MRI and SWI images of 34 patients with CCRCC confirmed by pathology were retrospectively analyzed. The maximum cross-section of tumor was selected as the level of interest in the observation of intratumoral hemorrhage. Three kinds of imaging methods were used to diagnose the type of hemorrhage and hemorrhage in the tumor. The general pathological control. Chi-square test was used to compare SWI and CT, SWI and conventional MRI imaging diagnosis of intra-hemorrhage and bleeding type of cases the number of differences. Results Gross pathology showed hemorrhage in 34 cases. CT diagnosis of 6 cases of intratumoral hemorrhage, of which 4 cases of bleeding type and pathological findings; conventional MRI diagnosis of 23 cases of hemorrhage, including 11 cases of bleeding type and pathology are seen; SWI diagnosis of 34 cases of intra-tumor hemorrhage, 34 cases Bleeding type and the pathology is exactly the same. The rates of intratumoral hemorrhage, large-area hemorrhage and hemorrhagic hemorrhage in SWCC were significantly higher than those of conventional MRI (χ2 = 13.123, 10.372,4.976, P = 0.000,0.001,0.000) P = 0.000, 0.001, 0.026). Conclusion Compared with CT and conventional MRI, SWI can more accurately evaluate the type of intracranial hemorrhage and hemorrhage in CCRCC.