Results 21 to 30 of about 34,206 (303)

Contrast-enhanced ultrasonography for differential diagnosis of adnexal masses

open access: yesFrontiers in Oncology, 2022
BackgroundQuantitative contrast-enhanced ultrasonography parameters are affected by various factors. We evaluated corrected quantitative contrast enhanced ultrasonography in differentiating benign adnexal tumors from malignant tumors.MethodsPatients with
Weihui Shentu   +11 more
doaj   +1 more source

Efficacy and safety of percutaneous ultrasound-guided microwave ablation for cervical metastatic lymph nodes from papillary thyroid carcinoma

open access: yesInternational Journal of Hyperthermia, 2020
Purpose Our purpose is to assess the efficacy and safety of percutaneous US-guided microwave ablation (MWA) for cervical metastatic lymph nodes from papillary thyroid carcinomas (PTC). Methods In total, 37 patients with 98 cervical metastatic lymph nodes
Zhi-Yu Han   +6 more
doaj   +1 more source

Picosecond ultrasonics with miniaturized semiconductor lasers [PDF]

open access: yes, 2020
There is a great desire to extend ultrasonic techniques to the imaging and characterization of nanoobjects. This can be achieved by picosecond ultrasonics, where by using ultrafast lasers it is possible to generate and detect acoustic waves with ...
Kobecki, Michael   +24 more
core   +2 more sources

Interactions of bubbles in acoustic Lichtenberg figure

open access: yesUltrasonics Sonochemistry, 2022
The evolution of acoustic Lichtenberg figure (ALF) in ultrasound fields is studied using high-speed photography. It is observed that bubbles travel along the branch to the aggregation region of an ALF, promoting the possibility of large bubble or small ...
Fan Li   +7 more
doaj   +1 more source

Radial oscillation and translational motion of a gas bubble in a micro-cavity

open access: yesUltrasonics Sonochemistry, 2022
According to classical nucleation theory, a gas nucleus can grow into a cavitation bubble when the ambient pressure is negative. Here, the growth process of a gas nucleus in a micro-cavity was simplified to two “events”, and the full confinement effect ...
Xianmei Zhang   +8 more
doaj   +1 more source

Ultrasonics for Radioactive Decontamination [PDF]

open access: yes, 1957
Tests have been run to determine in a preliminary fashion whether ultrasonic vibration would be effective in removing mixed radioactive deposits from the inside surface of steel pipes in a heat exchanger.
Henry, G.E.
core   +1 more source

USES OF ULTRASONICS IN ENDODONTICS, A REVIEW. [PDF]

open access: yes, 2018
In the last few years endodontic treatment has advanced with the introduction of new techniques and equipment?s. These have significantly improved the results and predictability of endodontic treatments.
Afeef Ansar, k. Harish s. Shetty.
core   +1 more source

Laser Ultrasonics in Industry

open access: yes, 2022
S.2134-2141The generation of ultrasound by pulsed lasers and its interferometric detection, shortly called laser ultrasonics, is a well established ndt method in research laboratories.
Hoffmann, A.   +3 more
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Special Issue on Laser Ultrasonics [PDF]

open access: yes, 2019
The field of laser ultrasonics encompasses fundamental research on laser–matter interactions, as well as applications of opto-acoustic and acousto-optic phenomena in industry and biomedicine [...
Goussev, Vitali   +7 more
core   +1 more source

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