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Related Concept Videos

Traumatic Brain Injury l: Introduction01:28

Traumatic Brain Injury l: Introduction

14
DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...
14
Hemorrhagic Stroke ll: Pathophysiology01:29

Hemorrhagic Stroke ll: Pathophysiology

14
A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
14
Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

10
Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this...
10
Hemorrhagic Stroke l: Introduction01:17

Hemorrhagic Stroke l: Introduction

15
A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
15
Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

42
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...
42
Increased Intracranial Pressure ll: Pathophysiology01:29

Increased Intracranial Pressure ll: Pathophysiology

14
Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins...
14

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Related Experiment Video

Updated: Apr 26, 2026

A Preclinical Controlled Cortical Impact Model for Traumatic Hemorrhage Contusion and Neuroinflammation
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Cerebrovascular trauma.

Sara R Nace1, Lindell R Gentry1

  • 1Department of Radiology, University of Wisconsin, 600 Highland Avenue, Madison, WI 53792, USA.

Neuroimaging Clinics of North America
|August 4, 2014
PubMed
Summary

Recent advancements improve blunt cerebrovascular injury (BCVI) detection and management. Noninvasive imaging is crucial for identifying high-risk patients and characterizing BCVI, guiding prompt therapy initiation.

Area of Science:

  • Medical imaging and diagnostics
  • Trauma and emergency medicine
  • Vascular surgery

Background:

  • Blunt cerebrovascular injury (BCVI) diagnosis and treatment have seen significant progress.
  • Optimal screening algorithms and diagnostic modalities for BCVI remain areas of ongoing research.
  • Noninvasive imaging plays an increasingly vital role in BCVI identification and characterization.

Purpose of the Study:

  • To highlight recent advancements in BCVI recognition, screening, diagnosis, and treatment.
  • To emphasize the established role of noninvasive imaging in high-risk BCVI patient identification.
  • To discuss the potential of advanced imaging for risk stratification and timely therapeutic intervention.

Main Methods:

  • Review of recent progress in BCVI management strategies.
Keywords:
CerebrovascularDiagnosisDissectionTherapyTrauma

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  • Emphasis on the utility of noninvasive imaging modalities.
  • Exploration of high-resolution computed tomographic examinations for head, maxillofacial, and cervical regions.

    • Main Results:

    • Noninvasive imaging has been clearly established as vital for identifying high-risk BCVI patients.
    • Imaging effectively characterizes the nature and extent of BCVI.
    • Early work shows promise in stratifying BCVI patients using advanced CT evaluations.

    Conclusions:

    • Significant progress has been made in the comprehensive management of BCVI.
    • Noninvasive imaging is a cornerstone in the diagnostic pathway for BCVI.
    • Advanced imaging techniques facilitate risk stratification and prompt initiation of therapy for BCVI patients.