Results 31 to 40 of about 13,622 (202)

Reperfusion therapy in patients with acute stroke with the willis polygon variant – A fetal posterior cerebral artery

Neurological Sciences and Neurophysiology, 2023
Aim: The Willis polygon variant, specifically the presence of a fetal posterior cerebral artery (fPCA), can have implications for the treatment and prognosis of patients with acute stroke.
İbrahim Acır, Hacı Ali Erdoğan, Vildan Ayşe Yayla   +2 more
doaj   +1 more source

RAPID Tmax map was useful for determining the site of acute right internal carotid artery occlusion presenting with cerebral infarction in the right posterior cerebral artery region

Interdisciplinary Neurosurgery, 2022
Background: In computed tomography (CT) perfusion using rapid processing of perfusion and diffusion (RAPID), a relative cerebral blood flow (CBF) of  6 s is determined as the penumbra, and the perfusion mismatch is calculated.
Seigo Kimura, Ryokichi Yagi, Fumihisa Kishi, Daiji Ogawa, Keiichi Yamada, Hirokatsu Taniguchi, Masahiko Wanibuchi   +6 more
doaj   +1 more source

Cerebrovascular ischemic changes associated with fetal posterior cerebral artery- descriptive retrospective study with magnetic resonance imaging and angiography of brain [PDF]

Al Ameen Journal of Medical Sciences, 2016
Objectives: Circle of Willis, the main collateral pathway for cerebral circulation, is complete in only a portion of the population. There are many variations in the Circle of Willis.
Venkatraman Indiran, Prabakaran Maduraimuthu   +1 more
doaj  

Carotid Endarterectomy in a Patient with Posterior Cerebral Artery Infarction: Influence of Fetal Type PCA on Atypical Clinical Course

Case Reports in Neurological Medicine, 2015
Fetal type PCA may positively affect clinical outcome in patients with ischemic stroke such as protection of a reserve blood flow capacity as well as negative effect on clinical outcome such as certain atypical ...
Mehmet Kolukısa, Azize Esra Gürsoy, Gülşen Kocaman, Hümeyra Dürüyen, Hüseyin Toprak, Talip Asil   +5 more
doaj   +1 more source

The Effect of Posterior Communicating Artery and Fetal Posterior Cerebral Artery Anomalies on Prognosis in Endovascular and Thrombolytic Therapy Patients

Global Emergency and Critical Care
Objective: Acute reperfusion therapy is a critical intervention for stroke patients with the aim of restoring blood flow. The presence of anatomical anomalies, such as fetal posterior cerebral artery (fPCA) and posterior communicating artery (PCOM ...
Hacı Ali Erdoğan, İbrahim Acır, Zeynep Ezgi Kurtpınar, Ömer Yıldız, Vildan Yayla   +4 more
doaj   +1 more source

Influence of Vascular Variant of the Posterior Cerebral Artery (PCA) on Cerebral Blood Flow, Vascular Response to CO2 and Static Functional Connectivity. [PDF]

PLoS ONE, 2016
The fetal origin of the posterior cerebral artery (fPCA) is a frequent vascular variant in 11-29% of the population. For the fPCA, blood flow in the PCA originates from the anterior instead of the posterior circulation.
Kirsten Emmert, Daniela Zöller, Maria Giulia Preti, Dimitri Van De Ville, Panteleimon Giannakopoulos, Sven Haller   +5 more
doaj   +1 more source

Clinical significance of cerebral collateral circulation assessment based on Balloon Test Occlusion

Chinese Journal of Contemporary Neurology and Neurosurgery, 2022
Objective To analyze compensatory ability of the cerebral collateral circulation and relevant factors affecting cerebral ischemic tolerance for internal carotid artery (ICA) occlusion by Balloon Test Occlusion (BTO), providing reference basis for the ...
SUN Zeng⁃feng, SHANG Yan⁃guo , SHENG Zhi⁃guo , ZHU Hua⁃yu, TONG Xiao⁃guang   +4 more
doaj   +1 more source

Bilateral Vertebral Artery Hypoplasia and Fetal-Type Variants of the Posterior Cerebral Artery in Acute Ischemic Stroke

Frontiers in Neurology, 2021
Aim: Unilateral vertebral artery hypoplasia is considered a risk factor for posterior circulation infarction. Despite the increasing attention on unilateral vertebral artery hypoplasia, few studies have discussed bilateral vertebral artery hypoplasia ...
Chung-Fu Hsu, Chung-Fu Hsu, Kuan-Wen Chen, Kuan-Wen Chen, Chun-Hung Su, Chun-Hung Su, Chao-Yu Shen, Chao-Yu Shen, Hsin-Yi Chi, Hsin-Yi Chi, Hsin-Yi Chi   +10 more
doaj   +1 more source

Anomic aphasia in the absence of hemianopia due to proximal posterior cerebral artery occlusion

Interdisciplinary Neurosurgery, 2021
To our knowledge, anomic aphasia in the absence of sustained visual field deficits due to proximal posterior cerebral artery (PCA) occlusion has never before been reported.
Alison Ilana Thaler, Brian D. Kim, Kurt Yaeger, Shahram Majidi, Steven Rudolph, Stanley Tuhrim, Michael G. Fara   +6 more
doaj   +1 more source

Engineered Microvascular Model of the Blood–Brain–Tumor Barrier Reveals Endothelial Remodeling in Diffuse Midline Glioma

Advanced Healthcare Materials, EarlyView.
We developed a patient‐derived, functional microfluidic model of the diffuse midline glioma (DMG) blood–brain–tumor barrier (BBTB) comprised of endothelial cells, astrocytes, pericytes, and tumor cells. The system forms perfusable microvasculature, reveals the BBTB retains vascular integrity, identifies DMG‐specific transcriptomic changes distinct from
Kimberly R. Bennett, Yann S. Vanrobaeys, Tessy Teboh, Zakiya Smith, Anderson Scott, Cynthia Hajal, Paula T. Hammond, Joelle P. Straehla   +7 more
wiley   +1 more source