摘要
目的:评价多层螺旋CT(MSCT)多期扫描在早期肾细胞癌(RCC)诊断中的价值。方法:回顾性分析20例经病理证实的早期肾癌平扫及多期增强扫描的MSCT表现。结果:①MSCT平扫中10例病灶呈稍低密度,5例等密度,2例稍高密度,3例为囊实性肿块;增强扫描皮质期除1例轻度强化外,其余肿瘤强化均较明显,强化为均匀或不均匀,实质期及肾盂期强化迅速减退。②本组早期肾癌检出率100%,定性诊断率95%,分期准确度为95%。结论:①皮质期与实质期“快进快退”的强化特点对早期肾癌具定性诊断意义。②MSCT双期(皮质期与实质期)增强扫描是早期肾癌可靠的检查方法,必要时结合肾盂期扫描,可了解肾盂、肾盏受侵情况。③MSCT多期扫描提高了早期肾癌诊断的敏感性、特异性与准确度。
Abstract
Objective: To evaluate multiple spiral CT(MSCT) in the diagnosis of early renal cell carcinoma(RCC). Methods: 20 cases of early RCC in proved by pathology phases were analyzed retrospectively. Results:①In 10 patients the lesion were seen as low density, in 5 patients medium density were seen, and in 2 patients, it appeared minimal high density. Most lesions except one showed marked enhancement in cortical phase. The tumor density drops promptly in parenchymal phase, and drops further in delayed phase. ②The detection and characterization as well as accuracy of staging in 20 early RCC on MSCT were 100%, 95%, and 95%, respectively. Conclusions: ①In most patients, tumor enhancement showed characteristically the phenomenon of “quick staining and quick fainting”, which is significant in diagnosis of early RCC. ②Two-phase enhanced MSCT scan was a reliable technique in the detection, characterization and staging of early RCC. ③Multi-phase MSCT scan may increase the sensitivity, specificity and accuracy in the diagnosis of early RCC.
关键词
肾肿瘤 /
体层摄影术 /
螺旋计算机
Key words
kidney neoplasms /
tomography /
spiral computed
古杰洪;莫 蕾;王海林.
MSCT多期扫描在早期肾癌诊断中的应用价值[J]. 中国临床医学影像杂志. 2006, 17(8): 452-454
GU Jie-hong;MO Lei;WANG Hai-lin.
Value of MSCT in the diagnosis of early renal cell carcinoma[J]. Journal of China Clinic Medical Imaging. 2006, 17(8): 452-454
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