摘要
目的:评价磁共振弥散成像(DWI)鉴别肾上腺肿瘤的价值及表观弥散系数与肿瘤细胞密度的相关性。方法:对经手术病理证实的35个肾上腺肿瘤病变进行DWI检查,分析ADC值与细胞密度的相关性。结果:肾上腺肿瘤ADC值与其细胞密度负相关。以b值取800s/mm2时,ADC与肿瘤细胞密度的相关性最大。结论:ADC值是鉴别肾上腺肿瘤性质的有效参数,与肿瘤细胞密度有很好相关性,DWI对肾上腺肿瘤鉴别具有价值,是对常规磁共振的有益补充。
Objective： To evaluate the value of diffusion weighted imaging （DWI） in distinguishing between benign and malignant adrenal tumors, and the correlation between ADC value and the cellularity density. Methods： Thiry-five adrenal tuners underwent DWI. The compuled mean apparent diffusion coefficients （ADCs） of the Adrenal lesions and cell density were then correlated.Results： There was negative correlation betweort the ADC value and the tumor cellularity of adrenal tumors, the optimal extent was obviously when b was equal to 800s/mm^2. Conclusion：The ADC would be an effective parameter in distinguishing between malignant and benign adrenal tumnrs. Tumor cellularity has a significant influence on the ADCs obtained in both benign and malignant adrenal tumors. DWI is valuable for differentiate adrenal tumors and is a useful supplement for conventional MRI examination.
出处
《中国民康医学》
2007年第22期1015-1015,1019,共2页
Medical Journal of Chinese People’s Health
关键词
肾上腺肿瘤
弥散加权成像
细胞密度
Adrenal tumor
Diffusion weighted imaging
Cell density
