Results 91 to 100 of about 523,512 (303)

Effects of vessel dynamics and compliance on human right coronary artery hemodynamics with / without stenosis

Journal of Biomechanical Science and Engineering, 2015
A computational study of effects of vessel dynamics and compliance on coronary artery hemodynamics with / without stenosis is presented. The coronary artery hemodynamics with stenosis has been a main subject as one of the major cardiovascular diseases ...
Takashi FUJIWARA, Fuyou LIANG, Ken-ichi TSUBOTA, Michiko SUGAWARA, Yu-qi FAN, Hao LIU   +5 more
doaj   +1 more source

Localization of endovascular tools in X-ray images using a motorized C-arm: visualization on HoloLens

Current Directions in Biomedical Engineering, 2020
C-arms are medical devices widely used for image-guided minimally invasive endovascular procedures. This technology requires considerable experience for the physicians to position the C-arm to obtain X-ray images of the endovascular tools.
Chen Yenjung, Shah Nilay Yatinkumar, Goswami Subhra Sundar, Lange Annkristin, von Haxthausen Felix, Sieren Malte Maria, Hagenah Jannis, Ernst Floris, García-Vázquez Verónica   +8 more
doaj   +1 more source

Large-Eddy simulation of pulsatile blood flow [PDF]

, 2009
Large-Eddy simulation (LES) is performed to study pulsatile blood flow through a 3D model of arterial stenosis. The model is chosen as a simple channel with a biological type stenosis formed on the top wall.
Molla, M.M., Roditi, G., Paul, M.C.
core   +1 more source

A Robust Bio‐Supportive Hydrogel Patch for Full‐Thickness Repair of Gastroesophageal Defects

Advanced Science, EarlyView.
Gastroesophageal defect repair remains a formidable clinical challenge plagued by high leakage and life‐threatening complications. We develop a double‐disc, highly crystalline PVA‐based RBS hydrogel patch featuring suture‐free sealing, robust acid/enzyme resistance and mechanical durability.
Xingqi Song, Zhewei Shuai, Weiyan Sun, Liang Chen, Yiwei Shen, Jiateng Hu, Yuanqi Ma, Jie Luo, Meilin Huang, Yan Luo, Yunlang She, Guangdong Zhou, Chang Chen, Dong Lei   +13 more
wiley   +1 more source

Misconceptions and Facts About Aortic Stenosis. [PDF]

, 2017
Aortic stenosis is the most common valvular heart disease leading to intervention, and it is typically a disease of the elderly. Recent clinical advances have expanded the role of transcatheter aortic valve intervention in patients with severe aortic ...
Windecker, Stephan, Argulian, Edgar, Messerli, Franz H, Windecker S, Messerli FH, Argulian E   +5 more
core   +1 more source

Ilexoside K Ameliorates Atherosclerosis by Suppressing CD72hi Macrophages and Blocking CXCL12–CXCR4 Axis to Inhibit Endothelial Pyroptosis

Advanced Science, EarlyView.
CD72hi macrophages drive endothelial pyroptosis and accelerate atherosclerosis through CXCL12–CXCR4‐mediated immune–vascular crosstalk. Ilexoside K suppresses this pathogenic communication by modulating CXCR4‐dependent endothelial responses, reducing inflammation and plaque progression. These findings reveal a macrophage–endothelial regulatory axis and
Xingling He, Sijing Li, Jiahui Chen, Liyu Lin, Xinyu Li, Xiaojiao Zhang, Yihui Zhang, Xingling Chen, Jinjian Guo, Zhongqi Yang, Lu Lu, Shihao Ni   +11 more
wiley   +1 more source

Wearable E‐Textiles for Cardiovascular Monitoring: Materials, Devices, and Integrated Systems

Advanced Science, EarlyView.
The graphical abstract highlights the role of conductive materials and textile fabrication techniques in enabling smart textiles for cardiovascular applications. It showcases textile‐based ECG monitoring, pulse sensing, hemodynamic monitoring, and cardiovascular tissue engineering, while emphasizing the challenges and design considerations that govern ...
Bangul Khan, Mahmoud Tavakoli, Norbert Radacsi, Bee Luan KHOO   +3 more
wiley   +1 more source

Long-term risk of carotid restenosis in patients randomly assigned to endovascular treatment or endarterectomy in the Carotid and Vertebral Artery Transluminal Angioplasty Study (CAVATAS): long-term follow-up of a randomised trial [PDF]

, 2009
Background In the Carotid and Vertebral Artery Transluminal Angioplasty Study (CAVATAS), early recurrent carotid stenosis was more common in patients assigned to endovascular treatment than it was in patients assigned to endarterectomy (CEA), raising ...
Sandercock, Peter, Ederle, Jörg, Gaines, Peter A., Sandercock, P, Ederle, Joerg, Brown, Martin M., Venables, Graham S, McCabe, Dominick J. H., Beard, Jonathan D., Markus, Hugh S, Dobson, Joanna, Featherstone, RL, McCabe, Dominick JH, Bonati, Leo H., Venables, Graham S., Gaines, Peter A, Brown, MM, Markus, HS, Venables, GS, McCabe, Dominick J H, Bonati, LH, CAVATAS Investigators, Dobson, J, Gaines, PA, Bonati, Leo H, McCabe, DJ, Clifton, Andrew, Beard, JD, Beard, Jonathan D, Brown, Martin M, Kalra, Lalit, Clifton, A, ?, ?, Featherstone, Roland L., Sellar, Robin, Ederle, J, Featherstone, Roland L, Markus, Hugh S.   +37 more
core   +1 more source

Extracellular Vesicle Packaged TDP43 Derived From ECs Exacerbates Cigarette Tar‐Related Atherosclerosis Progression via Enhancing Macrophage Extracellular Traps

Advanced Science, EarlyView.
Cigarette tar triggers EC‐derived EVs carrying TDP43, which binds VDAC1 to boost MAMs, mitochondrial Ca2+ overload, and METs formation in macrophages, accelerating smoking‐related AS progression, while retinoic acid binds TDP43 to block this pathogenic cascade.
Xinxin Zhu, Yuwu Chen, Wei Meng, Biyi Xu, Junke Mou, Xiaolin Liu, Mengyang Wang, Qishuo Gu, Qianhui Sun, Man Li, Chen Zhao, Ming Zeng, Ying Lv, Boling Yi, Sheng Qu, Xiaoxuan Bai, Ji Li, Xing Luo, Sining Hu, Bo Yu, Haibo Jia   +20 more
wiley   +1 more source

A Novel Method for Angiographic Contrast-Based Diagnosis of Stenosis in Coronary Artery Disease: In Vivo and In Vitro Analyses

Diagnostics
Background: The existing diagnostic methods for coronary artery disease (CAD), such as coronary angiography and fractional flow reserve (FFR), have limitations regarding their invasiveness, cost, and discomfort.
Woongbin Kang, Cheong-Ah Lee, Gwansuk Kang, Dong-Guk Paeng, Joonhyouk Choi   +4 more
doaj   +1 more source