Now showing items 1-5 of 5
Quantitative assessment of surface roughness using backscattered ultrasound: The effects of finite surface curvature
(Elsevier, 1994)
We have previously described a technique to quantify surface fibrillatory changes in osteoarthritic articular cartilage. In that study, the angular distribution of the scattered acoustic field from an insonifying source ...
Usefulness of an acoustic edge artifact in assessment of the Ilizarov corticotomy interval
(Springer-Verlag; International Skeletal Society, 1992-07)
Thirty-three ultrasound examinations of the corticotomy interval of patients undergoing Ilizarov procedures were retrospectively evaluated for the presence or absence of an acoustic edge artifact. This artifact, consisting ...
Quantitative assessment of cartilage surface roughness in osteoarthritis using high frequency ultrasound
(Elsevier, 1992)
Osteoarthritis (OA) is a common disease which affects nearly 50% of people over age 60. Histologic evaluation suggests that fibrillations ~20-150 [mu]m are among the earliest changes in the articular cartilage. We propose ...
Quantitative tissue motion analysis of digitized m-mode images: Gestational differences of fetal lung
(Elsevier, 1990)
Quantitative analysis of transmitted cardiac motion in fetal lung is evaluated by applying correlation techniques to digitized M-mode images in 21 patients, subdivided into two subgroups by gestational age: (1) 25-30 weeks ...
Phase cancellation: A cause of acoustical shadowing at the edges of curved surfaces in B-mode ultrasound images
(Elsevier, 1991)
Acoustical shadowing occurring at the edges of curved objects is one of the most frequently observed artifacts in ultrasound imaging. This artifact has been generally ascribed to refraction and reflection effects at the ...