Premium
Differentiation of small hyperechoic renal cell carcinoma from angiomyolipoma: computer‐aided tissue echo quantification.
Author(s) -
Sim J S,
Seo C S,
Kim S H,
Kim J H,
Kim W S,
Han J K,
Choi B I
Publication year - 1999
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.7863/jum.1999.18.4.261
Subject(s) - medicine , angiomyolipoma , renal cortex , renal cell carcinoma , pathology , radiology , kidney , nuclear medicine
To assess the value of computer‐aided tissue echo quantification in differentiating small hyperechoic renal cell carcinomas from angiomyolipomas, we studied ultrasonographic images of 15 renal cell carcinomas and 20 angiomyolipomas. After digitizing the images, we measured the absolute gray scale values of the renal cortex, central echo complex, and mass. The relative gray scale value (%) of the mass was calculated by setting the gray scale value of the cortex as 0% and the central echo complex as 100%. The relative gray scale value of renal cell carcinomas was in the range of 12 to 73% (mean, 28%), whereas that of angiomyolipomas was 30 to 204% (mean, 130%). The differentiation between small hyperechoic renal cell carcinomas and angiomyolipomas can be facilitated by computer‐aided tissue echo quantification.