CT值不均匀度诊断肾透明细胞癌

发布时间：2018-06-27 00:11

本文选题：癌 + 肾细胞　；参考：《中国医学影像技术》2015年12期

【摘要】：目的探讨CT值不均匀度鉴别诊断肾透明细胞癌的价值。方法回顾性分析经术后病理证实为肾细胞癌患者的CT图像,纳入169个肿瘤,分为透明细胞癌组(n=152)和乏血供肾细胞癌组(n=17)。测量CT值的标准差,同时测量皮髓质期和实质期肿瘤的CT值,及同层面正常肾脏皮质和腹主动脉的CT值并获得CT值比值参数:皮髓质期肿瘤CT值/正常肾脏皮质CT值(TCOCM),皮髓质期肿瘤CT值/腹主动脉CT值(TAOCM),以及实质期肿瘤CT值/正常肾脏皮质CT值(TCON)、实质期肿瘤CT值/腹主动脉CT值(TAON)。对两组以上参数进行统计学分析。结果皮髓质期透明细胞癌组的CT值标准差(29.60±9.57)高于乏血供肾细胞癌组(18.85±8.10;t=-4.46,P0.001)。平扫和实质期两组肿瘤CT值标准差差异均无统计学意义(P均0.05)。皮髓质期的CT值标准差与透明细胞癌的Fuhrman分级存在弱相关(r=-0.16,P=0.049)。透明细胞癌组的TCOCM、TAOCM、TCON、TAON均高于乏血供肾细胞癌(P均0.05)。结论肾透明细胞癌皮髓质期的CT值标准差高,且CT值标准差可能与Fuhrman分级相关。CT值标准差可作为反映透明细胞癌皮髓质期不均匀强化的定量指标。
[Abstract]:Objective to evaluate the value of CT value inhomogeneity in differential diagnosis of renal clear cell carcinoma. Methods CT images of patients with renal cell carcinoma (RCC) confirmed by postoperative pathology were retrospectively analyzed. 169 tumors were included and divided into clear cell carcinoma group (nong152) and lack of blood supply renal cell carcinoma group (nf17). The standard deviation of CT value and the CT value of medullary and parenchymal tumors were measured. The CT values of normal renal cortex and abdominal aorta on the same plane and the ratio parameters of CT values were obtained: Ct value of dermatomedullary tumor / normal renal cortex (TCOCM), CT value of dermatomedullary tumor / abdominal aorta (TAOCM), and CT value of parenchymal tumor. Value / normal renal cortex CT value (TCON), parenchymal tumor CT value / abdominal aorta CT value (TAON). More than two groups of parameters were statistically analyzed. Results the standard deviation of CT value in the clear cell carcinoma group (29.60 卤9.57) was higher than that in the renal cell carcinoma group (18.85 卤8.10) (P 0.001). There was no significant difference in CT standard deviation between plain scan and parenchymal stage (P 0.05). There was a weak correlation between the standard deviation of CT value in the medullary phase and the Fuhrman grade of the clear cell carcinoma (r-0.16 P0. 049). The levels of TCOCM-TAOCM-TCONNTAON in clear cell carcinoma group were higher than those in renal cell carcinoma with poor blood supply (P 0.05). Conclusion the standard deviation of CT value in the medullary phase of renal clear cell carcinoma is high, and the standard deviation of CT value may be related to Fuhrman grade. The standard deviation of CT value can be used as a quantitative index to reflect the uneven enhancement of medullary phase of clear cell carcinoma.
【作者单位】：北京大学第一医院医学影像科;三明市中西医结合医院CT/MRI室;中国中医科学院广安门医院放射科;赤峰学院附属医院放疗科;
【分类号】：R737.11;R730.44

【参考文献】