Results 111 to 120 of about 115,685 (159)
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2005
Ultrasound has many uses in areas of medicine associated with anaesthesia. It is used for imaging, visualisation of needle and catheter positioning, therapy and, together with the Doppler effect, for measurement of flow velocity. Real-time information can be obtained with ease, and with the low energies used, diagnostic equipment exposures are not ...
Patrick Magee, Mark Tooley
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Ultrasound has many uses in areas of medicine associated with anaesthesia. It is used for imaging, visualisation of needle and catheter positioning, therapy and, together with the Doppler effect, for measurement of flow velocity. Real-time information can be obtained with ease, and with the low energies used, diagnostic equipment exposures are not ...
Patrick Magee, Mark Tooley
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Doppler Ultrasound in Obstetrics
JAMA: The Journal of the American Medical Association, 1971Since its first description in 1964, Doppler-principle ultrasound has been used for detection of fetal life, placental localization, and more recently detection of multiple pregnancies and fetal heart monitoring. Techniques and methods of interpretation as applied to 521 patients gave the following accuracy in each determined: detection of fetal life ...
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Renovascular disease: Doppler ultrasound
Seminars in Ultrasound, CT and MRI, 1997Color Doppler ultrasound (CDUS) seems to be an effective imaging technique for the diagnosis of renal vascular diseases. It is already the modality of choice for the detection of acute renal vein thrombosis and nonocclusive intrarenal vascular disorders including iatrogenic arteriovenous fistula and false aneurysm, particularly in patients with ...
O, Hélénon +4 more
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Diagnostic applications of Doppler ultrasound
Ultrasonics, 1969Abstract The Doppler principle using low intensity ultrasound is applied to medical diagnosis. In diagnosis of pregnancy a frequency of 2–2.5MHz is chosen. The Ultrasonic Blood Flow Detector has tremendous potential for the diagnosis of pregnancy.
F D, Fielder, R F, Baker
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Doppler Ultrasound and Periventricular Leukomalacia
Pediatrics, 2006Periventricular leukomalacia (PVL) seems to be the most important determinant of neurologic morbidity seen in preterm infants who survive the neonatal period. Although the cystic form, with focal necrotic lesions, is usually associated with the development of cerebral palsy (CP) in infancy, the more diffuse form, which is not well visualized with ...
Linda S, de Vries, Frank, van Bel
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A doppler ultrasound clutter phantom
Ultrasound in Medicine & Biology, 1996We describe two variations of a phantom designed to evaluate the wall filters implemented on colour and spectral Doppler instruments. Both variations use an acoustic beam splitter to place the same Doppler sample volume within a motor-driven clutter belt and a flow source, which is either a second belt (dual-belt phantom) or a vascular phantom (belt ...
D W, Rickey, A, Fenster
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Doppler Ultrasound of the Renal Vasculature
Journal of Ultrasound in MedicineUltrasound is the first‐line imaging modality used in patients with suspected renovascular disease. Common indications include renovascular hypertension and unexplained renal dysfunction. We review the ultrasound imaging findings of various pathologies involving the renal vessels, including the renal arteries (atherosclerotic stenosis, fibromuscular ...
Gowthaman Gunabushanam +2 more
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Doppler ultrasound - basics revisited
British Journal of Nursing, 2006Palpation of pedal pulses alone is known to be an unreliable indicator for the presence of arterial disease. Using portable Doppler ultrasound to measure the resting ankle brachial pressure index is superior to palpation of peripheral pulses as an assessment of the adequacy of the arterial supply in the lower limb. Revisiting basics, this article aims
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Refraction in doppler ultrasound
Ultrasound in Medicine & Biology, 1993S, Li, W N, McDicken, P R, Hoskins
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