Results 241 to 250 of about 276,825 (279)

Pediatric ocular ultrasonography

2022
Learning objectives: Ocular ultrasound is often used as a complementary technique in the examination of ocular pathology, especially in children, as it is an easy, cheap, non-invasive, accessible, and safe technique.
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Power Doppler Ultrasonography in Ocular and Orbital Diseases

Ophthalmologica, 1998
Purpose: The authors present a preliminary report to test the usefulness of a new technique called power Doppler ultrasonography (PD) in the study of orbital vessels. Material and Methods: The ophthalmic artery and vein as well as the central retinal artery and vein have been examined in 10 patients with a General Electric Logiq 5000 that allows the ...
ROSA N, CENNAMO, GIOVANNI, BREVE MA, DE RUGGIERO P.   +3 more
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Diagnostic Ocular Ultrasonography

1990
Since the 1960s ultrasonography has advanced from a research tool limited to the measurement of ocular dimensions to sophisticated imaging modality. The technique is now used extensively at all levels of ophthalmic evaluation. The most common application of diagnostic ultrasonography is for evaluation of eyes with opaque media (e.g., dense cataract or ...
Mary E. Smith, Barrett G. Haik, D. Jackson Coleman   +2 more
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History and Principles of Ocular Ultrasonography

2018
Acoustics, the science of sound, started in the 6th century BC. Ultrasound physics was discovered by Lazzaro Spallanzani in 1794 when he explained echolocation in bats, used for hunting and navigating by inaudible sound. Jacques and Pierre Curie, in 1880, discovered the piezoelectric effect, which was later used in transducers to generate and detect ...
Aniruddha Agarwal, Arash Maleki, Quan Dong Nguyen   +2 more
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Doppler ultrasonography findings in ocular Behçet's disease

Clinical Imaging, 2006
The aim of this prospective study was to determine and compare the orbital Doppler ultrasonography parameters of patients with Behçet's disease (with or without ocular involvement) with those of healthy subjects. We evaluated ophthalmic artery (OA), central retinal artery, posterior ciliary artery (PCA), central retinal vein, and superior ophthalmic ...
Bahar, Yanik, Işik, Conkbayir, Nilüfer, Berker, Murat, Songgur, Bahri, Keyik, Nazmiye, Kurşun, Baki, Hekimoğlu   +6 more
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Point of Care Ultrasonography for the Evaluation of Ocular Emergencies

Advanced Emergency Nursing Journal
Ocular point-of-care ultrasound (POCUS) has emerged as a pivotal tool in evaluating ocular emergencies in the emergency department (ED), addressing millions of annual visits for eye complaints in the United States. Compared to traditional imaging methods, ocular POCUS’s advantages include efficiency, repeatability, and safety.
Juan Manuel, Gonzalez, Johis, Ortega, Kenya, Snowden, Patricia, Larrieu-Jimenez, Nichole, Crenshaw, Catherine, Nadeau, Stephen, McGhee   +6 more
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Role of Ocular Ultrasonography to Distinguish Papilledema From Pseudopapilledema

Journal of Neuro-Ophthalmology, 2020
Background: We prospectively evaluated the sensitivity and specificity of ocular ultrasonography (OUS) to distinguish papilledema from pseudopapilledema. Methods: Forty-nine study participants, with optic disc elevation, underwent neuro-ophthalmic evaluation, OUS, fundus photography,
Anita A, Kohli, Maxwell, Pistilli, Cesar, Alfaro, Ahmara G, Ross, Imran, Jivraj, Sheila, Bagchi, Jessie, Chan, Dionne, May, Grant T, Liu, Kenneth S, Shindler, Madhura A, Tamhankar   +10 more
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B-Scan Ocular Ultrasonography in Preterm and Term Infants

Journal of Pediatric Ophthalmology & Strabismus, 1996
ABSTRACT Purpose: To evaluate the normal B-scan ocular ultrasonographic findings in preterm and term newborns.This information would be useful in making perinatal ocular diagnoses, especially in consideration of the rapidly changing eyes of normal infants shortly after birth.
S J, Isenberg, M, Fishman
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B mode ultrasonography—spectrum of paediatric ocular disease

European Journal of Radiology, 1998
Despite having appropriate sonographic equipment available many radiologists remain unfamiliar with B mode sonography of the eye.This article reviews the advantages and disadvantages of B mode sonography of the paediatric eye. We illustrate the spectrum of eye abnormalities occurring in paediatric practice and the sonographic appearance of clinical ...
G, Long, D A, Stringer, H R, Nadel, A M, Fink, P, Lewis, J D, Carruthers, C, Lyons   +6 more
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Digital A-Scan Ultrasonography Used to Measure Ocular Distances

American Journal of Ophthalmology, 1977
Digital A-scan ultrasonography provided a digital display of intraocular distances with an overall accuracy of 0.05 mm. Since the control setting was easy and calibration was unnecessary, the time of measurement is reduced and hence the apparatus is useful in clinical practice.
G L, van der Heijde, A J, Meinema, M S, Vlaming   +2 more
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