Results 51 to 60 of about 92,232 (308)

Colour Doppler ultrasound imaging of blood flows variations in neoplastic and non‐neoplastic testicular lesions in dogs

open access: yesReproduction in domestic animals = Zuchthygiene, 2018
Testicular tumours are the most common neoplasms in male dogs accounting for approximately 90% of all tumours affecting the genitourinary tract. Gray-scale ultrasonography in combination with colour and power Doppler imaging has been well accepted as an ...
E. Bigliardi   +7 more
semanticscholar   +1 more source

Current status of laboratory and imaging diagnosis of neonatal necrotizing enterocolitis [PDF]

open access: yes, 2018
Necrotizing enterocolitis continues to be a devastating disease process for very low birth weight infants in Neonatal Intensive Care Units. The aetiology and pathogenesis of necrotizing enterocolitis are not definitively understood.
Corsello G   +9 more
core   +1 more source

Simultaneous umbilical blood flow during normal pregnancy in sheep and goat foetuses using non-invasive colour Doppler ultrasound

open access: yesAnimal Reproduction, 2018
The characteristics of umbilical blood flow (UM) was investigated using 18 (25 foetuses) pregnant ewes and 20 (41 foetus) pregnant goats transrectal non-invasive color Doppler ultrasonographic examinations were done frequently between 2 and 8 week after ...
M. Elmetwally, S. Meinecke-Tillmann
semanticscholar   +1 more source

Using a DAS28-CRP-steered treat-to-target strategy does not eliminate subclinical inflammation as assessed by ultrasonography in rheumatoid arthritis patients in longstanding clinical remission

open access: yesArthritis Research & Therapy, 2021
Background Subclinical synovitis by ultrasound is a frequent finding in rheumatoid arthritis (RA) patients in remission and has been shown to be related to erosive progression, risk of flare and unsuccessful drug tapering, but it has not been ...
Lene Terslev   +8 more
doaj   +1 more source

What is Doppler ultrasound? [PDF]

open access: yes, 2011
The term Doppler should be capitalized because it refers to Christian Johann Doppler, an Austrian physicist (1803–1853). He described a phenomenon whereby the frequency of sound changes when it is reflected off a moving object.
Vassallo, Pierre
core  

Microvascular Doppler ultrasound in children with acute pyelonephritis.

open access: yesMedical ultrasonography, 2021
AIMS To compare the diagnostic performance of microvascular Doppler ultrasonography (MVUS) to B-mode and con-ventional colour Doppler US (CDUS) for detecting acute pyelonephritis (APN) lesions in children.
Gayoung Choi   +3 more
semanticscholar   +1 more source

A Single‐Metal‐Doped Nanoplatform for Ferroptosis‐Driven cGAS‐STING Pathway Activation in Hepatocellular Carcinoma Immunotherapy

open access: yesAdvanced Functional Materials, EarlyView.
The cGAS‐STING pathway boosts HCC antitumor immunity but lacks specific activation. Nanoplatform ZMRPF induces HCC ferroptosis via lipid ROS, releasing mtDNA. It synergizes with ZMRPF‐released Mn2⁺ to activate cGAS‐STING, amplifies antigen‐presenting cell activity, reverses HCC immunosuppression, and enables robust systemic antitumor immunity ...
Yuchen Zhang   +13 more
wiley   +1 more source

Artefacts in musculoskeletal ultrasound

open access: yesIndian Journal of Rheumatology, 2018
Artefacts in musculoskeletal (MSK) ultrasound (US) comprise artefacts that mimic an abnormality while scanning normal structures and artefacts that occur together with abnormal conditions at grey-scale and Doppler imaging. Some of these can be avoided by
Susila Krishnan
doaj   +1 more source

Ultrasonic colour Doppler imaging [PDF]

open access: yes, 2011
Ultrasonic colour Doppler is an imaging technique that combines anatomical information derived using ultrasonic pulse-echo techniques with velocity information derived using ultrasonic Doppler techniques to generate colour-coded maps of tissue velocity ...
Dotti D.   +6 more
core   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

open access: yesAdvanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha   +14 more
wiley   +1 more source

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