Related Experiment Video
Updated: May 4, 2026

10:25
Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
Published on: September 25, 2019
48.8K
Perfusion patterns of ischemic stroke on computed tomography perfusion
Longting Lin1, Andrew Bivard2, Mark W Parsons1
1Department of Neurology, John Hunter Hospital, Hunter Medical Research Institute, the University of Newcastle, Newcastle, Australia.
Journal of Stroke
|January 8, 2014
Summary
CT perfusion (CTP) aids in understanding ischemic stroke. This guide helps clinicians interpret CTP patterns for better acute stroke patient management and routine imaging.
Area of Science:
- Neurology
- Radiology
- Medical Imaging
Background:
- CT perfusion (CTP) is increasingly used in ischemic stroke research.
- CTP is a relatively new technology in clinical practice.
- Interpreting CTP results alongside clinical presentation poses a challenge for clinicians.
Purpose of the Study:
- To illustrate common CTP patterns in acute ischemic stroke.
- To familiarize clinicians with CTP information.
- To encourage CTP integration into routine acute stroke imaging.
Main Methods:
- Case-based approach to illustrate CTP patterns.
- Focus on common findings in acute ischemic stroke.
Main Results:
- Demonstration of typical CTP findings in ischemic stroke cases.
- Explanation of how CTP data relates to clinical scenarios.
Conclusions:
- Familiarity with CTP patterns can improve interpretation.
- CTP can be a valuable tool in the routine workup of acute stroke patients.
Related Concept Videos
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...
54
Transient Ischemic Attack l: Introduction
18
A transient ischemic attack (TIA) is a brief episode of neurological dysfunction caused by a temporary, focal reduction in cerebral blood flow. Although symptoms resemble those of an ischemic stroke, the interruption in perfusion is short-lived and does not cause permanent infarction. TIAs are clinically important because they often serve as early warning events for future stroke.Mechanisms of Transient Cerebral IschemiaTransient cerebral ischemia may arise through several mechanisms. One...
18
Ischemic Stroke l: Introduction
44
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
Magnetic Resonance Imaging
7.6K
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
7.6K
Assessment of Diffusion and Perfusion
2.0K
Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
2.0K

