منابع مشابه
Spectral Doppler instrumentation.
Andrew A. Pellett, Ph.D., R.D.C.S.,∗§ William G. Tolar, B.S.,†§ Darrin G. Merwin, B.S.,†§, and Edmund K. Kerut, M.D., F.A.C.C., F.A.S.E.‡§ ∗Department of Cardiopulmonary Science, Louisiana State University Health Sciences Center, New Orleans, Louisiana; †Medical Center of Louisiana at New Orleans, New Orleans, Louisiana; ‡Heart Clinic of Louisiana, Marrero, Louisiana; and §Division of Cardiolog...
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Turbulence is a key element of the dynamics of astrophysical fluids, including those of interstellar medium, clusters of galaxies and circumstellar regions. Turbulent motions induce Doppler shifts of observable emission and absorption lines. In the review we discuss new techniques that relate the spectra of underlying velocity turbulence and spectra of Doppler-shifted lines. In particular, the ...
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vertebrobasilar insufficiency is the cause of cerebrovascular accidents in 20% of cases. there are few reports regarding spectral doppler indices (sdis) of vertebral arteries (vas) normal blood flow. the objective of this study was to provide basic reference data about sdis of vas normal blood flow separately and in comparison with internal carotid arteries (icas) and common carotid arteries (c...
متن کاملDoppler US evaluation of renal biopsy complications in children.
PURPOSE Percutaneous renal biopsy plays an important role in the diagnosis and management of renal disease in children, but it does carry some complications. As most cases are vascular in origin, Doppler ultrasonography (US) has clear benefits in terms of detecting bleeding and assessing vascular damage. The aim of this study was to investigate the effectiveness of Doppler US in detecting possi...
متن کاملGray-scale and color Doppler US findings of amniotic sheets.
PURPOSE To identify the gray-scale and color Doppler ultrasonography (US) findings of amniotic sheets. MATERIALS AND METHODS Among 1201 pregnant patients who underwent detailed second trimester US, nine had amniotic sheets. An amniotic sheet was defined as a shelf-like structure in the uterine cavity with a free edge not attached to the fetus or umbilical cord. There was no major fetal anomal...
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ژورنال
عنوان ژورنال: RadioGraphics
سال: 1994
ISSN: 0271-5333,1527-1323
DOI: 10.1148/radiographics.14.1.8128046