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ORIGINAL ARTICLE
Year : 2018  |  Volume : 14  |  Issue : 9  |  Page : 394-399

Gemstone spectral imaging dual-energy computed tomography for differentiation of renal cell carcinoma and minimal-fat renal angiomyolipoma


1 Department of Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, P.R. China
2 Department of Computed Tomography, Jiaozuo People's Hospital, Jiaozuo 454150, Henan, P.R. China
3 Department of Endocrinology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, P.R. China

Correspondence Address:
Zhizhen Li
Department of Endocrinology, First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe Dong Road, Zhengzhou 450052, Henan
P.R. China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0973-1482.172714

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Purpose: To investigate the values of gemstone spectral imaging (GSI)-dual-energy computed tomography (DECT) in differentiation of renal cell carcinoma (RCC) and minimal-fat renal angiomyolipoma (MF-RAML). Patients and Methods: Twenty-one patients with ischemic RCC and 19 patients with MF-RAML were enrolled in this study. GSI was performed on them, and the spectrum signs were analyzed. Results: I(H2O), H2O(I), I(fat), and fat(I) concentrations, normalized I concentration, and effective atomic number of corticomedullary phase and parenchymal phase in enhanced GSI-DECT in ischemic RCC group were all significantly lower than those in MF-RAML group (P < 0.05). CT value and absolute slope rate of spectral attenuation curve in two phases in ischemic RCC group were also significantly lower than those in MF-RAML group (P < 0.05). Conclusion: GSI-DECT has provided a new idea and method for differential diagnosis of ischemic RCC and MF-RAML, with high-clinical values.


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