Echogenicity: analysis, significance, and masking

AJR. American Journal of Roentgenology
A B KurtzB B Goldberg

Abstract

Echogenicity can be created by the admixture of any acoustically dissimilar substances. Experiments performed in vitro using mineral oil and water and in vivo examining 24 pathologically proven echogenic abnormalities show that echogenicity cannot be ascribed to a specific tissue, but rather is a property of all substances. In addition, when dissimilar histologic and pathologic substances have similar echo appearances and are adjacent, they become indistinguishable. This loss of structural definition can be termed the sonographic "masking sign," comparable in masking qualities to the established radiographic "silhouette sign." When this phenomenon occurs, an abnormality can be detected only through displacement of an organ or distortion of its internal anatomy. A thorough understanding of echogenicity and the sonographic masking sign will allow a more accurate evaluation of masses and infiltrating processes.

Citations

Jan 1, 1983·Gastrointestinal Radiology·S L ChatzkelR J Wechsler
Jan 1, 1987·Urologic Radiology·O H Baltarowich, A B Kurtz
Mar 25, 2011·Environmental Health and Preventive Medicine·Kiyoshi ShibataShinkan Tokudome
Aug 7, 1982·Lancet·R A MinnsG M Hendry
Dec 23, 1999·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·J A ChurchillD J Polzin
Jan 5, 2002·AJR. American Journal of Roentgenology·Hani H Abu-Judeh
Feb 22, 2000·Radiographics : a Review Publication of the Radiological Society of North America, Inc·J A GubernickA Kessler
Mar 1, 1986·The British Journal of Radiology·P A Dubbins, I Wells
Nov 26, 2009·The British Journal of Radiology·N VenkatanarasimhaS J Freeman
Nov 1, 1985·The Veterinary Clinics of North America. Small Animal Practice·D A FeeneyP A Walter
Jun 1, 1985·Journal of Clinical Ultrasound : JCU·F ZappasodiC Frassineti
Jul 24, 2002·The American Journal of Gastroenterology·Kazuhiko NakaoNobuko Ishii
Nov 24, 1999·The American Journal of Gastroenterology·K TobeT Tsuji
Jun 1, 1983·Journal of Clinical Ultrasound : JCU·M PamiloM Päivänsalo
Jan 1, 1983·Acta Radiologica: Diagnosis·M PamiloS Lähde
Sep 1, 1983·Journal of Clinical Ultrasound : JCU·P M GrahamJ A Booth

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