Results 61 to 70 of about 624 (216)

Color Doppler Ultrasonography in the Third Trimester of Pregnancy Significantly Reclassifies Fetal Growth Restriction in the Samrakshan Program of IRIA in India

open access: yesIndian Journal of Radiology and Imaging, 2023
Rijo Mathew Choorakuttil   +5 more
doaj   +1 more source

Measurements of left ventricular myocardial longitudinal systolic displacement using spectral and colour tissue Doppler: time for a reassessment?

open access: yesCardiovascular Ultrasound, 2009
Background Echocardiographic measurements of left ventricular (LV) myocardial displacement may produce different results depending on the choice of employed modality and subjective adjustments during data acquisition and analysis.
Winter Reidar   +4 more
doaj   +1 more source

Asymmetric Electrostrain/Electrobending in Piezoelectric Ceramics: Role of Defect Dipoles or Oxygen Vacancies

open access: yesAdvanced Science, EarlyView.
Defect‐configurational origins of the asymmetric apparent electrostrain are revealed in different piezoelectric ceramics via atomic‐scale visualization of defect configurations. Migration of oxygen vacancies leads to the electrobending effect in N2‐sintered BaTiO3, while defect dipoles in Ba0.99TiO2.99 generate true asymmetric electrostrain without ...
Jie Wang   +7 more
wiley   +1 more source

Robot‐Assisted Doppler Optical Coherence Tomography for Intraoperative Evaluation of Microvascular Anastomoses

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents a robot‐assisted Doppler optical coherence tomography system for autonomous, wide‐field intraoperative assessment of microvascular anastomoses. Machine‐vision–guided probe positioning and adaptive scan planning enable three‐dimensional structural and hemodynamic imaging over extended vessel segments.
Xiaochen Li   +10 more
wiley   +1 more source

Gray Scale and Colour Doppler Sonography in the Evaluation of Follicular Neoplasms of Thyroid

open access: yesInternational Journal of Anatomy Radiology and Surgery, 2018
Introduction: Follicular neoplasms of the thyroid gland include benign follicular adenoma and follicular carcinoma. Currently, a follicular carcinoma cannot be distinguished from a follicular adenoma based on cytologic, sonographic, or clinical ...
Pradeep Hagalahalli Nagarajegowda   +7 more
doaj   +1 more source

Age and gender effects on echocardiographic and histopathological cardiac phenotypes in healthy adult mice

open access: yesAnimal Models and Experimental Medicine, EarlyView.
This study investigated the impact of age and sex on cardiac phenotypes in healthy adult C57BL/6J mice using echocardiography and histopathological analyses. Findings revealed that female mice demonstrated more pronounced global cardiac chamber dilation during aging.
Shuang Wen   +6 more
wiley   +1 more source

Fatal haemorrhage from an Ultrasound Guided Fine Needle Aspiration of the liver in a patient with Primary Hepatocellular Carcinoma: Case report

open access: yesNigerian Postgraduate Medical Journal, 2013
A case of fatal haemorrhage is reported among 72 ultrasound (US) guided percutaneous fine-needle aspiration liver biopsies (FNAB) performed in the gastro- intestinal unit of Medicine Department in a tertiary hospital.
O Adekanle   +5 more
doaj  

The characteristics of collagen‐induced rheumatoid arthritis in macaques and the changes of heart

open access: yesAnimal Models and Experimental Medicine, EarlyView.
The disease progression in CIA macaques was categorized into three stages: IIR (days 14–34): The indicators related to rheumatoid arthritis and the levels of immunoglobulin were all elevated. There was a small amount of joint effusion, edema and mild synovial hyperplasia. No joint swelling was observed by naked eye.
Lei Zhang   +8 more
wiley   +1 more source

Astrocytic Mitochondria Transplantation Rescues Neuron Loss and Dendritic Injuries in Acute Cerebral Ischemic Stroke Mouse Model by Flexibly Regulating Mitochondria Dynamics

open access: yesAnnals of Neurology, EarlyView.
Objective Cerebral ischemic stroke causes neuronal oxygen/energy deprivation, disrupting mitochondrial function including reduced membrane potential and bioenergetics, exacerbating neuronal injury. Mitochondrial defects are, therefore, a central neuropathological node and potential therapeutic target.
Ning Bian   +9 more
wiley   +1 more source

Is transnasal TEE imaging a viable alternative to conventional TEE during structural cardiac interventions to avoid general anaesthesia? A pilot comparison study of image quality

open access: yesEcho Research and Practice, 2017
Aim: The role of transoesophageal echocardiography in cardiac interventional structural procedures is well established and appreciated. However, the need for general anaesthesia (GA) throughout the procedure remains a controversial issue.
Dimitris Klettas   +4 more
doaj   +1 more source

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