摘要
目的探讨3．0TMR对低级别肾透明细胞癌诊断的影像特点。方法对22例病理证实的I～Ⅱ级肾透明细胞癌的MR平扫及动态增强图像进行回顾性分析，总结肾透明细胞癌的假包膜、T2WI及动态增强（DCE）的影像特点。结果T2WI假包膜的检出率为90．9％（20／22），DCE的延迟期假包膜检出率为100％（22／22）；T2WI特征分为两种：3例富水性病灶和19例实性病灶伴不规则坏死；DCE与T2WI特征有相关性。结论T2WI特征及假包膜的检出是低级别肾透明细胞癌MR诊断的基础，DCE是重要的检查手段，3．0T高分辨MR检查对低级别肾癌的诊断与评价以及指导临床治疗有重要应用价值。
Objective To investigate imaging features of low grade clear cell renal cell carcinoma（ cc RCC） on 3.0 T MR. Methods The plain and dynamic contrast enhanced （ DCE ） MR imaging of 22 patients with pathologically con- firmed I - Ⅱ grade clear cell carcinoma were retrospective analyzed. The features of pseudocapsule, features on T2WI and DCE imaging were analyzed. Results 90.9% （20/22） of pseudocapsule was displayed on T2WI and 100% （22/22） was displayed on DCE delay phase. The characteristics on T2WI images included two types： water rich lesions in 3 cases and solid lesions associated with irregular necrosis in 19 cases. Conclusion The T2WI imaging characteristics and pseudocap- sule detection are the basis of low grade cc-RCC MR diagnosis. 3.0 T high resolution MR imaging play an important role in the diagnosis of low grade renal cell carcinoma diagnosis and guiding clinical treatment.
出处
《临床放射学杂志》
CSCD
北大核心
2014年第2期244-247,共4页
Journal of Clinical Radiology
关键词
肾癌
透明细胞癌
假包膜
磁共振成像
Renal cell carcinoma Clear cell carcinoma Pseudocapsule Magnetic resonance imaging
