Premium
Interlaboratory comparison of ultrasonic backscatter, attenuation, and speed measurements.
Author(s) -
Madsen E L,
Dong F,
Frank G R,
Garra B S,
Wear K A,
Wilson T,
Zagzebski J A,
Miller H L,
Shung K K,
Wang S H,
Feleppa E J,
Liu T,
O'Brien W D,
Topp K A,
Sanghvi N T,
Zaitsev A V,
Hall T J,
Fowlkes J B,
Kripfgans O D,
Miller J G
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.1999.18.9.615
Subject(s) - attenuation , backscatter (email) , medicine , attenuation coefficient , ultrasonic sensor , computational physics , acoustics , optics , physics , radiology , telecommunications , computer science , wireless
In a study involving 10 different sites, independent results of measurements of ultrasonic properties on equivalent tissue‐mimicking samples are reported and compared. The properties measured were propagation speed, attenuation coefficients, and backscatter coefficients. Reasonably good agreement exists for attenuation coefficients, but less satisfactory results were found for propagation speeds. As anticipated, agreement was not impressive in the case of backscatter coefficients. Results for four sites agreed rather well in both absolute values and frequency dependence, and results from other sites were lower by as much as an order of magnitude. The study is valuable for laboratories doing quantitative studies.