Fat status detection and histotypes differentiation in solid renal masses using Dixon technique


      • Dixon technique systematically assessed renal masses: fat status and histotypes.
      • Only three histotypes of solid renal masses were confirmed to contain fat.
      • Signal intensity index and fat fraction had significant difference among histotypes.
      • Signal intensity index and fat fraction can differentiate different histotypes.



      To detect fat status and differentiate histotypes of renal masses by using Dixon technique.

      Materials and methods

      This study included 134 solid renal masses. Signal intensity index (SII) and fat fraction (FF) in different histotypes were compared.


      Only angiomyolipoma (AML), clear cell renal cell carcinoma (RCC), and papillary RCC were confirmed to contain fat. The FF of 16.8% can effectively differentiate AML from clear cell RCC, so did the SII of 9.2% can differentiate clear cell RCC from non-clear cell RCC and rare benign histotypes.


      Dixon technique successfully evaluated the fat status and histotypes of renal masses.


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