Results 71 to 80 of about 59,331 (203)

"Sudden Drop" in Blood Pressure is Associated With Recanalization After Thrombolysis. [PDF]

, 2015
We aim to investigate whether the phenomenon of "sudden drop" in blood pressure (BP) within the first 2 hours is associated with vessel recanalization.We retrospectively examined clinical and imaging data from a consecutive series of patients with stroke
Cao, Jin, Liebeskind, David S, Liu, Keqin, Lou, Min, Yan, Shenqiang   +4 more
core   +1 more source

“MR Fingerprinting for Imaging Brain Hemodynamics and Oxygenation”

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Over the past decade, several studies have explored the potential of magnetic resonance fingerprinting (MRF) for the quantification of brain hemodynamics, oxygenation, and perfusion. Recent advances in simulation models and reconstruction frameworks have also significantly enhanced the accuracy of vascular parameter estimation.
T. Coudert, A. Delphin, A. Barrier, E. L. Barbier, B. Lemasson, J. M. Warnking, T. Christen   +6 more
wiley   +1 more source

Assessment of Vessel Density on Non-Contrast Computed Tomography to Detect Basilar Artery Occlusion [PDF]

, 2020
Introduction: Basilar artery occlusion (BAO) may be clinically occult due to variable and non-specific symptomatology. We evaluated the qualitative and quantitative determination of a hyperdense basilar artery (HDBA) on non-contrast computed tomography ...
Asimos, Andrew W., Chang, Brenda, Clemente, Jonathan D., Jackson, Stephen C., Rhoten, Jeremy B., Runyon, Michael S., Sassano, D. Richard   +6 more
core  

Pre‐operative transcranial Doppler ultrasound assessment of cerebral collateral circulation in children undergoing veno‐arterial extracorporeal membrane oxygenation or cardiac surgery

Journal of Medical Radiation Sciences, EarlyView.
A pre‐cannulation survey of the circle of Willis (CoW) using transcranial Doppler (TCD) ultrasound was implemented to assess cerebral collateral circulation in children undergoing VA ECMO or cardiac surgery with cervical cannulation. The technique, in use since 2019, employs high‐end ultrasound platforms to assess brain morphology, haemorrhage and ...
Tristan Reddan, Michael Malouf, Prem Venugopal, Jennifer Powell   +3 more
wiley   +1 more source

Emergency EC-IC bypass for symptomatic atherosclerotic ischemic stroke [PDF]

, 2013
Previous studies have shown that extracranial-intracranial (EC-IC) bypass surgery has no preventive effect on subsequent ipsilateral ischemic stroke in patients with symptomatic atherosclerotic internal carotid occlusion and hemodynamic cerebral ischemia.
Hongo, Kazuhiro, Horiuchi, Tetsuyoshi, Ishizaka, Shigetoshi, Kanaya, Kohei, Nitta, Junpei, Yanagawa, Takao   +5 more
core   +1 more source

Major Ozonated Autoheamotherapy Alleviates Skeletal Muscle Ischemia/Reperfusion Injury by Regulating Nrf2/HO‐1 Pathway

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Skeletal muscle ischaemia/reperfusion (I/R) injury remains a clinically significant condition characterized by muscular dystrophy. Although ozone therapy has shown protective potential against I/R injury in animal models of various organs including skeletal muscle, its precise mechanistic underpinnings require further elucidation.
Hui‐Zhuang Guo, Sheng‐Long Yu, Han‐Wei Chen   +2 more
wiley   +1 more source

The Loss of Multifractality in Migraines [PDF]

arXiv, 2002
We study the middle cerebral artery blood flow velocity (MCAfv) in humans using transcranial Doppler ultrasonography (TCD). The time series of the axial flow velocity averaged over a cardiac beat interval is found to exhibit clear multifractal properties for healthy subjects. We observe a loss of multifractality for subjects with migraine.
arxiv  

Dexmedetomidine Blocks the ERK Pathway by Inhibiting MAP3K8 to Achieve a Protective Effect in Lung Ischemia/Reperfusion Injury

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Lung ischemia/reperfusion injury (LIRI) is a primary contributor to morbidity and mortality following lung transplantation. Dexmedetomidine (DEX) protects the lungs from I/R injury, but the underlying mechanisms remain uncertain. This paper examined the protective effect of DEX in LIRI and elucidated the potential regulation involved. LIRI was
Chun‐Huan Hu, Ru Qian, Yong‐Bo Wang, Lian‐Di Li, Chun‐Xing Miao   +4 more
wiley   +1 more source

Automatic Rodent Brain MRI Lesion Segmentation with Fully Convolutional Networks [PDF]

arXiv, 2019
Manual segmentation of rodent brain lesions from magnetic resonance images (MRIs) is an arduous, time-consuming and subjective task that is highly important in pre-clinical research. Several automatic methods have been developed for different human brain MRI segmentation, but little research has targeted automatic rodent lesion segmentation.
arxiv  

Segmentation‐assisted vessel centerline extraction from cerebral CT Angiography

Medical Physics, EarlyView.
Abstract Background The accurate automated extraction of brain vessel centerlines from Computed tomographic angiography (CTA) images plays an important role in diagnosing and treating cerebrovascular diseases such as stroke. Despite its significance, this task is complicated by the complex cerebrovascular structure and heterogeneous imaging quality ...
Sijie Liu, Ruisheng Su, Jiahang Su, Wim H. van Zwam, Pieter Jan van Doormaal, Aad van der Lugt, Wiro J. Niessen, Theo van Walsum   +7 more
wiley   +1 more source