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Diffusion - weighted Imagingin Differentiation of Lipid Poor Renal Angiom yolipo mafrom Renal Cell Carcinoma*

Author：HUANG Li-jun, LU Zhi-hua, ZHANG Ming-bo,et al.

affiliation：Department of Radiology, Changshu Hospital of Suzhou University, Changshu 215500, Jiangshu Province,China

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Abstract

Objective To explore the value of Diffusion-weighted imaging (DWI-MRI) in differentiation of lipid poor renal angiomyolipoma (LPRAML) from renal clear cell carcinoma (RCCC), and to improve the accuracy in diagnosing LPRAML. Methods The MR images of pathologically confirmed LPRAML (21 cases) and RCCC (20 cases) were analyzed and the mean ADC values were calculated, then the means ADC values of the two groups were compared with the student's test. Results The mean ADC values of LPRAML and RCCC were (1.21±0.21)×10-3mm2 /s and (0.89±0.08)×10-3mm2 / s respectively, and the mean ADC value of LPRAML was significantly higher than that of RCCC (t=8.32, P<0.01). Conclusion LPRAML and RCCC have different characteristics, ADC value can be applied as an important tool in differentiate LPRAML from RCCC.

【Keyword】 Lipid Poor Renal Angiomyolipoma; Renal Clear Cell Carcinoma; Magnetic Resonance Imaging; Diffusion-weighed Imaging

【Chart number】R445.2；R737.11

【Document Identification Number】A

【DOI】10.3969/j.issn.1672-5131.2017.06.029

Chinese journal of CT and MRI

th15Volume， th 6 Issue 2017Year06Month

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