Results 71 to 80 of about 26,775 (234)

Anterior cingulate cortex neuron subtypes differentially regulate seizures

Epilepsia, EarlyView.
Abstract Objective This study aimed to investigate the regulatory roles of distinct neuronal subtypes within the anterior cingulate cortex (ACC) in acute seizures and to identify cell type‐specific mechanisms underlying seizure modulation in this region. Methods Acute seizure models were established in mice via pentylenetetrazol injection.
Ziqian Yan, Ting Tang, Kaishan Wang, Bin Fu, Zesheng Li, Mingshan Liu, Hongyi Huang, Yanfeng Yang, Qiang Zheng, Yangmin Zheng, Yongzhi Shan, Yumin Luo, Guoguang Zhao   +12 more
wiley   +1 more source

Adjustable Magnetic Lumboperitoneal Shunt Application in Normal-Pressure Hydrocephalus: Two Case Reports

Brazilian Neurosurgery
Normal-pressure hydrocephalus (NPH) is a condition characterized by enlargement of the cerebral ventricles and increased intracranial pressure. It can be idiopathic or secondary.
Yasin Göktürk, Şule Göktürk, Seyit Kağan Başarslan, Faruk Peksoy   +3 more
doaj   +1 more source

Percutaneous Closure of Patent Foramen Ovale in a Patient With Incomplete Cor Triatriatum Sinister: A Case Report

Journal of Clinical Ultrasound, EarlyView.
We present the case of a 55‐year‐old male who experienced a cryptogenic ischemic stroke, likely due to a patent foramen ovale (PFO) in the setting of an incomplete cor triatriatum sinister (CTS) and a 30 mm GORE Cardioform Septal Occluder was successfully implanted.
Anastasios Apostolos, Maria Drakopoulou, Elias Tolis, Georgios Trantalis, Ioannis Kachrimanidis, Panayotis Vlachakis, Konstantinos Tsioufis, Konstantinos Toutouzas, Konstantina Aggeli   +8 more
wiley   +1 more source

Susceptibility Weighted Imaging (SWI) Recommended as a Regular Magnetic Resonance Diagnosis for Vascular Dementia to Identify Independent Idiopathic Normal Pressure Hydrocephalus Before Ventriculo-Peritoneal (V-P) Shunt Treatment: A Case Study

Frontiers in Neurology, 2019
Idiopathic normal pressure hydrocephalus (INPH) with comorbid vascular dementia (VD) often have poor response to ventriculo-peritoneal (V-P) shunt. Here, three patients over the age of 60 came to the hospital with the similar clinical symptoms, Evan ...
Wen-Qing Huang, Hui-Nuan Lin, Qing Lin, Qing Lin, Qing Lin, Chi-Meng Tzeng, Chi-Meng Tzeng   +6 more
doaj   +1 more source

Cerebral Blood Transit in Sickle Cell Anemia

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Sickle cell anemia (SCA) patients upregulate cerebral blood flow to compensate for decreased arterial oxygen content. Such hyperemic conditions can manifest as venous hyperintense signal on arterial spin labeling (ASL) MRI, which may reflect faster capillary blood transit, altered oxygen extraction fraction (OEF), and infarct risk ...
Wesley T. Richerson, Megan A. Aumann, Alexander K. Song, Samantha Davis, Lauren Milner, Maria Garza, Dann Martin, L. Taylor Davis, Sumit Pruthi, Lori C. Jordan, Manus J. Donahue   +10 more
wiley   +1 more source

Postprandial Changes in Thoracic Aortic Flow Detected by 4D Flow MRI May Influence Study Results

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background While there is a growing body of data using 4D flow MRI to distinguish between normal and abnormal blood flow values in the thoracic aorta, the extent of physiological variation or lack thereof is potentially undervalued. Physiological processes such as postprandial changes to hemodynamics might influence data, normal values, follow‐
Maren Friederike Balks, Luisa Quest, Andreas Stroth, Alexander Reiber, Patricia Ulloa, Nicolas Kirschke, Malte Maria Sieren, Joachim Graessner, Hendrik Kooijman, Jörg Barkhausen, Alex Frydrychowicz, Thekla Helene Oechtering   +11 more
wiley   +1 more source

Tension Pneumoventricle Secondary to Frontal Encephalocele Following Ventriculoperitoneal Shunt: A Case Report and Review of Pathophysiology

Indian Journal of Neurosurgery
Tension pneumoventricle is an uncommon but potentially life-threatening complication of ventriculoperitoneal (VP) shunt placement. It results from the accumulation of pressurized intraventricular air, producing mass effect and neurological deterioration.
Shubham Dubey, Abhijit Parab, Ponraj K. Sundaram, Amey Parab   +3 more
doaj   +1 more source

Assessment of 4D flow MRI for quantification of left-to-right shunt in pediatric patients with ventricular septal defect: comparison with right heart catheterization

Frontiers in Cardiovascular Medicine
ObjectivesThe percentage of shunt fraction significantly impacts the management of patients with congenital shunts, influencing strategic choices such as surgical or interventional procedures.
Seyed Mohammad Zamani-Aliabadi, Salah D. Qanadli, Seyed Hasan Fatehi-Feyzabad, Mohsen Ghasemnezhad, Hamidreza Ghaemi, Arshid Azarine, Ali Mohammadzadeh, Ahmad Bitarafan-Rajabi, Hojjat Mortezaeian, Kiara Rezaei-Kalantari   +9 more
doaj   +1 more source

Three-Phase Shunts for Stray Magnetic Field

Procedia Engineering, 2017
Abstract In the most basic form transformer consists from a primary and secondary winding coupled with alternating magnetic field. Main part of magnetic field runs through high permeability iron core. However, every transformer also has a stray component of magnetic field which doesn’t couple primary and secondary winding. The losses in metal part of
openaire   +1 more source

Investigating Associations Between Signal Intensity of Silent MR Angiography and Hemodynamic Information From 4D Flow MRI in Brain Arteriovenous Malformation

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Whether signal intensity (SI) on Silent MRA reflects hemodynamics in brain arteriovenous malformations (BAVMs) is unclear. Objectives To evaluate the relationship between Silent MRA SI and 4D flow‐derived hemodynamic parameters and examine whether Silent MRA‐based metrics are associated with symptomatic hemorrhage in BAVM.
Linshu Yang, Xiaosheng Meng, Haining Wei, Xiaoqian Li, Yang Yu, Qin Qin, Dan Zhu, Tao Hong, Hongqi Zhang, Rui Li, Jiaxing Yu, Chunxue Wu, Jie Lu   +12 more
wiley   +1 more source