Can “Tumor-to-Cortex Echogenicity Ratio” Differentiate Angiomyolipomas from Other Hyper-Echoic Renal Masses

Peiman Habibollahi, Anil Chauhan, Laith R. Sultan, Lisa P. Jones, Chandra M. Sehgal

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

A retrospective study was performed to evaluate the diagnostic value of tumor-to-cortex echogenicity ratio (TCER) in the characterization of hyper-echoic renal masses. The radiology database was queried between 2012 and 2014 for hyper-echoic renal masses on the basis of defined exclusion and inclusion criteria. Each included mass was characterized as either an angiomyolipoma (AML) or a non-AML based on pre-defined criteria. The ratio of renal mass echogenicity to that of adjacent renal cortex (TCER) was calculated for each mass using commercially available software. A total of 70 masses in 65 patients were identified, including 49 AMLs. TCER values >2.26 were associated with a sensitivity and specificity of 81.6% and 71.4%, respectively, for diagnosis of AML. Moreover, TCER values >3.98 resulted in 100% specificity for AML diagnosis with a sensitivity of 28.6%. These findings suggest that the TCER may be a valuable tool for the characterization of hyper-echoic renal masses.

Original languageEnglish (US)
Pages (from-to)1372-1377
Number of pages6
JournalUltrasound in Medicine and Biology
Volume43
Issue number7
DOIs
StatePublished - Jul 2017
Externally publishedYes

Keywords

  • Angiomyolipoma
  • Echogenic renal mass
  • Echogenicity
  • Renal cell carcinoma

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