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Related Concept Videos

Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

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Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
44
Imaging Studies VII: Vascular Imaging01:19

Imaging Studies VII: Vascular Imaging

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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

495
Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
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Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

54
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
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Related Experiment Video

Updated: May 3, 2026

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke
09:21

Optimized Management of Endovascular Treatment for Acute Ischemic Stroke

Published on: January 18, 2018

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Advanced imaging in acute ischemic stroke.

Shlee S Song1

  • 1Department of Neurology, Cedars-Sinai Medical Center, Los Angeles, California.

Seminars in Neurology
|February 8, 2014
PubMed
Summary
This summary is machine-generated.

Advanced neuroimaging, including perfusion studies and MRI, helps identify stroke patients who benefit most from reperfusion therapies like thrombolysis and endovascular treatment. This improves outcomes and reduces complications by moving beyond time-based eligibility.

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Author Spotlight: Integrated Photoacoustic, Ultrasound, and Angiographic Tomography (PAUSAT) for NonInvasive Whole-Brain Imaging of Ischemic Stroke
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Related Experiment Videos

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Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging

Background:

  • Stroke neuroimaging has advanced from basic hemorrhage exclusion using computed tomography (CT).
  • Current techniques aim to optimize reperfusion therapy selection for acute stroke patients.
  • Advanced imaging plays a crucial role in identifying treatment candidates and predicting outcomes.

Purpose of the Study:

  • To review the evolution and application of advanced neuroimaging in acute stroke care.
  • To highlight the role of perfusion studies (PWI) and magnetic resonance imaging (MRI) in expanding treatment eligibility.
  • To discuss the potential shift from time-based to imaging-based treatment criteria.

Main Methods:

  • Review of advancements in stroke neuroimaging techniques.
  • Discussion of computed tomography (CT), perfusion-weighted imaging (PWI), and magnetic resonance imaging (MRI).
  • Analysis of imaging markers for identifying ischemic penumbra and predicting outcomes.

Main Results:

  • Advanced imaging enables identification of patients likely to benefit from reperfusion therapy.
  • Neuroimaging helps identify risks for hemorrhage and poor outcomes, guiding treatment decisions.
  • Endovascular recanalization benefits can be identified using advanced techniques, crucial for later treatment initiation.

Conclusions:

  • Advanced neuroimaging is transforming acute stroke treatment by personalizing reperfusion strategies.
  • Imaging markers of tissue injury may lead to a paradigm shift towards physiology-based treatment eligibility.
  • Improved sensitivity and specificity of imaging in identifying the ischemic penumbra will refine clinical decision-making.