Why the study?
Does counting pixels with subzero attenuation on MDCT aid in the diagnosis of renal angiomyolipoma with minimal fat compared to renal cell carcinoma?
Population
18 patients with minimal-fat renal angiomyolipoma and a matched cohort of patients with renal cell carcinoma.
Comparison
MDCT pixel counts of subzero attenuation vs Matched cohort of patients with renal cell…
Design
Case-control, Three radiologists independently counted the number of pixels
Authors
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High specificity/PPV supports confirmatory use in suspected minimal-fat AML; leaves open prospective validation before routine adoption.
Does counting pixels with subzero attenuation on MDCT aid in the diagnosis of renal angiomyolipoma with minimal fat compared to renal cell carcinoma?
Absolute pixel counts of subzero attenuation on MDCT have a high positive predictive value but low sensitivity for diagnosing minimal-fat renal angiomyolipoma.
Simpfendorfer et al. (2009) studied this question.
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