Results 121 to 130 of about 99,401 (311)

What is Doppler ultrasound? [PDF]

, 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  

Enhanced Embolic Signal Analysis through Ensemble Deep Learning Techniques Utilizing Transfer Learning and Layer Freezing Strategies

Advanced Intelligent Systems, EarlyView.
A 10‐convolutional neural network ensemble using transfer learning and layer freezing analyzes 400 Doppler‐ultrasound spectrograms to distinguish speckle, artifact, and ESs. Soft and hard voting drive performance to 96.7% accuracy and 96.5% F1, highlighting a practical route for early embolus detection and stroke‐risk mitigation.
M. Ikbal Karadeli, Berke Cansiz, Nizamettin Aydin, Gorkem Serbes   +3 more
wiley   +1 more source

Collaborative Multirobot Navigation‐Assisted Magnetic Catheter Guidance and Shape Perception with Vascular Ultrasound and Electromagnetic Tracking

Advanced Intelligent Systems, EarlyView.
The article develops a collaborative multirobot navigation system‐assisted magnetic catheter guidance and shape perception method using the information fusion of robotic vascular ultrasound imaging and electromagnetic tracking to reconstruct the 3D catheter's shape and vasculature. Results verify the effectiveness of the system and the potential of the
Zhengyang Li, Junan Li, Magejiang Yeerbulati, Shurun Liang, Yechen Zhang, Qingsong Xu   +5 more
wiley   +1 more source

Cavernous hemangioma of the external carotid artery [PDF]

Journal of Vascular Surgery, 2014
Massi F, Massi M, Torracca L, THIENE, GAETANO   +3 more
openaire   +4 more sources

Adaptations to iron deficiency: cardiac functional responsiveness to norepinephrine, arterial remodeling, and the effect of beta-blockade on cardiac hypertrophy. [PDF]

, 2002
BackgroundIron deficiency (ID) results in ventricular hypertrophy, believed to involve sympathetic stimulation. We hypothesized that with ID 1) intravenous norepinephrine would alter heart rate (HR) and contractility, 2) abdominal aorta would be larger ...
Chew, Herbert George, Gibbs, Brett Jason, Hearthway, Megan Lesley, Motsko, Madelyne, Mullendore, Michael Eugene, Premo, Daniel Aaron, Sappington, Andrea, Turner, Lexa Rae, Walker, LeeAnn   +8 more
core   +1 more source

Microendovascular Neural Recording from Cortical and Deep Vessels with High Precision and Minimal Invasiveness

Advanced Intelligent Systems, EarlyView.
Intravascular electroencephalography (ivEEG) using micro‐intravascular electrodes was developed. Cortical‐vein ivEEG showed a higher signal‐to‐noise ratio and finer spatial resolution of somatosensory evoked potentials (SEPs) than superior sagittal sinus ivEEG, and deep‐vein ivEEG captured clear visual evoked potentials.
Takamitsu Iwata, Hajime Nakamura, Takafumi Uemura, Teppei Araki, Takaki Matsumura, Takaaki Abe, Toshikazu Nezu, Masatoshi Takagaki, Tomohiko Ozaki, Shinpei Miura, Ryohei Fukuma, Sam E. John, David B. Grayden, Haruhiko Kishima, Tsuyoshi Sekitani, Takufumi Yanagisawa   +15 more
wiley   +1 more source

A case of penetrating neck injury in zone II treated with combined endovascular and surgical management

Acute Medicine & Surgery
Background We report a case of zone II penetrating neck trauma with active bleeding in which endovascular treatment was performed prior to neck exploration to identify and control the bleeding point.
Youhei Nakamura, Shunichiro Nakao, Takeshi Nishida, Hiroshi Ito, Tomohiko Ozaki, Jun Oda   +5 more
doaj   +1 more source

Endovascular repair of symptomatic carotid artery aneurysm with covered stent: A case report and literature review

SAGE Open Medical Case Reports, 2015
Objectives: Extracranial carotid artery true aneurysm is extremely uncommon, and definite treatment has traditionally involved open surgical repair. Although successful management of the internal carotid artery aneurysms using endovascular stenting and ...
Alireza Hamidian Jahromi, Tze-Woei Tan, Amy H Coulter, Linda D Doucet, Wayne W Zhang   +4 more
doaj   +1 more source

Adverse Cardiovascular Risk Profile and Increased Diurnal Salivary Cortisol in Girls With Turner Syndrome: An Exploratory Study

American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Patients with Turner Syndrome (TS) and those exposed to high concentrations of glucocorticoids have a number of characteristics in common, including an increased risk of cardiovascular disease. Pediatric TS patients underwent studies of salivary cortisol (SC) and cortisone (SCn), body composition, continuous glucose monitoring, vascular ...
Lily Jones, Julie Park, Silothabo Dliso, Daniel B. Hawcutt, Alena Shantsila, Gregory Y. H. Lip, Joanne Blair   +6 more
wiley   +1 more source

Management of Cardiovascular Health Issues in Turner Syndrome: Expert Insights and Expanded Recommendations From the 2024 Guideline Development Team

American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Turner syndrome (TS) is frequently complicated by congenital heart disease (CHD). While left‐sided lesions such as bicuspid aortic valve (BAV) and coarctation of the aorta are the most common structural heart lesions in TS, other anomalies, such as aortic arch malformations, hypoplastic left heart syndrome (HLHS), persistent left superior vena
Katya de Groote, Sheetal R. Patel, Kristian Havmand Mortensen, Isabel Witvrouwen, Anthonie Duijnhouwer, Nicole M. Brown, Jasmine Grewal, Kathryn C. Chatfield, Aaron T. Dorfman, Siddharth K. Prakash   +9 more
wiley   +1 more source