Results 41 to 50 of about 266,397 (338)

Vesselness-guided Active Contour: A Coronary Vessel Extraction Method

Journal of Medical Signals & Sensors, 2014
Vessel extraction is a critical task in clinical practice. In this paper, we propose a new approach for vessel extraction using an active contour model by defining a novel vesselness-based term, based on accurate analysis of the vessel structure in the image.
Maryam Taghizadeh Dehkordi, Morteza Jalalat, Saeed Sadri, Alimohamad Doosthoseini, Mohammad Reza Ahmadzadeh, Rasoul Amirfattahi   +5 more
openaire   +3 more sources

Compliant vascular models 3D printed with the Stratasys J750: a direct characterization of model distensibility using intravascular ultrasound

3D Printing in Medicine, 2021
Purpose The purpose of this study is to evaluate biomechanical accuracy of 3D printed anatomical vessels using a material jetting printer (J750, Stratasys, Rehovot, Israel) by measuring distensibility via intravascular ultrasound.
Adam J. Sparks, Cody M. Smith, Ariana B. Allman, Jillian L. Senko, Karen M. Meess, Richard W. Ducharme, Michael E. Springer, Muhammad Waqas, Adnan H. Siddiqui   +8 more
doaj   +1 more source

The mysterious origins of coronary vessels [PDF]

Cell Research, 2013
The origin of the coronary vessels remains a mystery. Here we discuss recent studies that address this puzzle, including new work by Tian et al. recently published in Cell Research.
Bing, Zhang, William T, Pu
openaire   +2 more sources

Hematopoietic (stem) cells—The elixir of life?

FEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo, Jonah Anderson, Emilie Dinh Vedrenne, Noël Yeh Martín, Jette Lengefeld   +4 more
wiley   +1 more source

Relationship between epicardial fat volume on cardiac CT and atherosclerosis severity in three-vessel coronary artery disease: a single-center cross-sectional study

BMC Cardiovascular Disorders, 2022
Background The ideal treatment strategy for stable three-vessel coronary artery disease (CAD) patients are difficult to determine and for patients undergoing conservative treatment, imaging evidence of coronary atherosclerotic severity progression ...
Yu Sun, Xiao-gang Li, Kai Xu, Jie Hou, Hong-rui You, Rong-rong Zhang, Miao Qi, Li-bo Zhang, Li-sheng Xu, Stephen E. Greenwald, Ben-qiang Yang   +10 more
doaj   +1 more source

Identification of Flow-Limiting Coronary Stenosis With PCS: A New Cost-Effective Index Derived From the Product of Corrected TIMI Frame Count and Percent Diameter Stenosis

Frontiers in Cardiovascular Medicine, 2021
Background: Identifying functional coronary stenosis with simple and cost-effective methods during invasive coronary angiography is still challenging. Corrected TIMI frame count (CTFC) is considered to be the frame count velocity of coronary blood flow ...
Xinhao Li, Lijuan Lyu, Wei Yang, Jichen Pan, Mei Dong, Mei Zhang, Pengfei Zhang   +6 more
doaj   +1 more source

Computed tomography of coronary artery anomaly : case report [PDF]

, 2009
Background: Anomalies of coronary vessels can be described as varies group of congenital heart disease, which can have different level of clinical manifestation and changeable pathophysiological mechanisms.
Chojnacki, Mariusz, Gibińska, Joanna, Konopka, Marek, Paraniak-Gieszczyk, Barbara   +3 more
core  

HSP70 governs permeability and mechanotransduction in primary human endothelial cells

FEBS Open Bio, EarlyView.
HSP70 chemical inhibition reduces endothelial cell proliferation and increases permeability, the latter supported by normal interendothelial junctional protein distribution. HSP70 also plays a role in shear stress response, a hemodynamic force naturally present in blood vessels and correlated with vessel protection.
Andrea Pinto‐Martinez, Everton G. Melo, Isadora C. B. Pavan, Percíllia V. S. Oliveira, Luiza B. C. T. Coimbra, Thaís L. S. Araujo   +5 more
wiley   +1 more source

Development of the Coronary Vessel System [PDF]

Circulation Research, 2002
Formation of the coronary vessels is a fundamental event in heart development. Congenital abnormalities in the coronary system can have major deleterious effects on heart function. It is also possible that subtle variation in the patterning of coronary vessels has significant but uncharacterized effects on myocardial structure and function. In addition,
David E, Reese, Takashi, Mikawa, David M, Bader   +2 more
openaire   +2 more sources

Interaction between anandamide and sphingosine-1-phosphate in mediating vasorelaxation in rat coronary artery [PDF]

, 2010
<b>BACKGROUND AND PURPOSE</b> Anandamide and sphingosine-1-phosphate (S1P) both regulate vascular tone in a variety of vessels. This study aimed to examine the mechanisms involved in the regulation of coronary vascular tone by anandamide and ...
Alemany, Alewijnse, Alexander, Ancellin, Blazquez, Chun, Coussin, Felder, French, Galve-Roperh, Giuliano, Grainger, Hajrasouliha, Hemmings, Hemmings, Herradon, Ho, Ho, Howlett, Igarashi, Igarashi, Ikeda, Jarai, Kobayashi, Long, Melendez, Mukhopadhyay, Mulvany, Nofer, O'Sullivan, Offertaler, Oka, Paugh, Peters, Pitson, Pratt, Pyne, Pyne, Romano, Roviezzo, Sanchez, Sarkar, Smart, Sukocheva, Taha, Venkataraman, White, Zygmunt   +47 more
core   +2 more sources