Results 11 to 20 of about 137,386 (200)

Function of Circle of Willis [PDF]

Journal of Cerebral Blood Flow & Metabolism, 2014
Nearly 400 years ago, Thomas Willis described the arterial ring at the base of the brain (the circle of Willis, CW) and recognized it as a compensatory system in the case of arterial occlusion. This theory is still accepted. We present several arguments that via negativa should discard the compensatory theory. (1) Current theory is anthropocentric; it
Brkić, Hrvoje, Vrselja, Zvonimir, Ćurić, Goran, Radić, Radivoje, Mrđenović, Stefan   +4 more
openaire   +4 more sources

Progress on the correlation between circle of Willis and cerebral large and small vessel diseases

Chinese Journal of Contemporary Neurology and Neurosurgery, 2023
The circle of Willis constitutes the primary collateral circulation of the brain, exerting a significant influence on the distribution of intracranial blood flow.
FENG Lu, ZHU Yi⁃cheng
doaj   +1 more source

Peak Trekking of Hierarchy Mountain for the Detection of Cerebral Aneurysm using Modified Hough Circle Transform [PDF]

, 2013
The Circle of Willis is in the junction of two carotid arteries and two vertebral arteries that supply the brain with nutrition. Junctions where these arteries come together may develop weak spots that can balloon out and fill with blood, creating ...
Chandra, Abhijit, Halder, Tanmay, Mitra, Jubin   +2 more
core   +5 more sources

Analysis of the symmetric configuration of the circle of Willis in a series of autopsied corpses [PDF]

Vojnosanitetski Pregled, 2015
Introduction. The forming of the blood vessels network configuration at the base of the brain and interconnecting of blood vessels during the embryogenesis is directly related to the phylogenetic development of the brain and brain structures.
Stojanović Nebojša, Stefanović Ivica, Kostić Aleksandar, Mitić Radisav, Radisavljević Miša, Stojanov Dragan, Petrović Slađana   +6 more
doaj   +1 more source

Presence of anatomical variations of the circle of Willis in patients undergoing surgical treatment for ruptured intracranial aneurysms [PDF]

Vojnosanitetski Pregled, 2009
Background/Aim. The presence of aneurysmal changes on the brain blood vessels has been subject to numerous research. This study investigated the relation between ruptured aneurysms and anatomical configuration of the Circle of Willis, with the purpose to
Stojanović Nebojša, Stefanović Ivan, Ranđelović Saša, Mitić Rade, Bošnjaković Petar, Stojanov Dragan   +5 more
doaj   +1 more source

Adaptation of the Cerebrocortical Circulation to Carotid Artery Occlusion Involves Blood Flow Redistribution between Cortical Regions and is Independent of eNOS [PDF]

, 2016
Cerebral circulation is secured by feed-forward and feed-back control pathways to maintain and eventually reestablish the optimal oxygen and nutrient supply of neurons in case of disturbances of the cardiovascular system.
Andreas Polycarpou, András Iring, Béla Horváth, Daniel Safar, Henry M, László Hricisák, Moncada S, Péter Sándor, Shapiro HM, Sokoloff L, Zoltán Benyó, Éva Ruisanchez   +11 more
core   +1 more source

RNF213 p.R4810K (c.14429G > A) Variant Determines Anatomical Variations of the Circle of Willis in Cerebrovascular Disease

Frontiers in Aging Neuroscience, 2021
IntroductionDysregulation of the RING finger protein 213 (RNF213) gene impairs vascular formation in experimental animal models. In addition, vascular abnormalities in the circle of Willis are associated with cerebrovascular disease.
Futoshi Eto, Futoshi Eto, Takeshi Yoshimoto, Shuhei Okazaki, Shuhei Okazaki, Kunihiro Nishimura, Shiori Ogura, Shiori Ogura, Eriko Yamaguchi, Eriko Yamaguchi, Kazuki Fukuma, Satoshi Saito, Kazuo Washida, Masatoshi Koga, Kazunori Toyoda, Takaaki Morimoto, Takaaki Morimoto, Hirofumi Maruyama, Akio Koizumi, Akio Koizumi, Masafumi Ihara   +20 more
doaj   +1 more source

Computational modelling of emboli travel trajectories in cerebral arteries: Influence of microembolic particle size and density [PDF]

, 2014
This article has been made available through the Brunel Open Access Publishing Fund.Ischaemic stroke is responsible for up to 80 % of stroke cases. Prevention of the reoccurrence of ischaemic attack or stroke for patients who survived the first symptoms ...
A Adboix, B Murtagh, CA Basciano, D Bushi, Dario Fabbri, EML Chung, H Tanaka, JC Grotta, Michele Pinelli, MR Tullio Di, MS Pollanen, NJJ MacDougall, NU Weir, Quan Long, RL Macdonald, Saroj Das   +15 more
core   +2 more sources

Normal Variants of the Circle of Willis in patients undergoing CT Angiography

Journal of College of Medical Sciences-Nepal, 2017
Background & Objectives: The Circle of Willis represents the important anastomotic cerebral vessels at the base of the brain. Variation in the Circle of Willis is common. A complete or normal Circle of Willis varies widely in the literature.
V Natraj Prasad, Pramod Kumar Chhetri, Arun Paudel   +2 more
doaj   +1 more source

Anatomical variants of circle of Willis [PDF]

Praxis Medica, 2020
Introduction: The circle of Willis is the major source of collateral blood flow between the carotid and vertebrobasilar system. Its potential depends on the presence and size of arteries that vary greatly among normal individuals and therefore their ...
Milenković Aleksandra, Petrović Slađana, Nikolić Simon, Radović Branislava, Ilić Aleksandra, Gašić Miloš, Tomić Bojan   +6 more
doaj   +1 more source