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Related Concept Videos

Cerebral Edema l: Introduction01:19

Cerebral Edema l: Introduction

Cerebral edema is a pathological increase in brain water content that disrupts intracranial pressure regulation and impairs neurological function. Because the cranial vault is rigid, even modest increases in tissue volume can compromise cerebral perfusion, distort neural structures, and initiate secondary injury. Cerebral edema develops through four principal mechanisms: vasogenic, cytotoxic, interstitial, and ionic.Vasogenic EdemaVasogenic edema arises from disruption of the blood–brain...
Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

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 barrier loses...
Cytotoxic Edema: Pathophysiology01:21

Cytotoxic Edema: Pathophysiology

Cytotoxic edema is a form of cerebral edema characterized by intracellular swelling of neurons, astrocytes, and other glial cells. It develops when the mechanisms responsible for maintaining ionic gradients across the cell membrane become impaired. Under normal physiological conditions, the sodium–potassium ATPase actively transports sodium ions out of the cell and potassium ions into the cell, preserving osmotic balance and enabling electrical signaling. This pump requires a continuous supply...

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Related Experiment Video

Updated: Jun 4, 2026

Measuring Post-Stroke Cerebral Edema, Infarct Zone and Blood-Brain Barrier Breakdown in a Single Set of Rodent Brain Samples
04:32

Measuring Post-Stroke Cerebral Edema, Infarct Zone and Blood-Brain Barrier Breakdown in a Single Set of Rodent Brain Samples

Published on: October 23, 2020

Assessing postmortem brain edema: A comparative evaluation of estimation techniques.

Shrouk Mohamed Ali1, Shaimaa A Shehata1

  • 1Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.

Journal of Forensic and Legal Medicine
|June 2, 2026
PubMed
Summary
This summary is machine-generated.

Estimating postmortem brain edema in forensic autopsies is challenging. Objective mathematical models and AI tools enhance accuracy and reproducibility in assessing brain edema, improving forensic evaluations.

Keywords:
Artificial intelligenceBrain edemaMorphometric analysisWet-dry weight

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Area of Science:

  • Forensic Pathology
  • Neuropathology
  • Medical Imaging

Background:

  • Postmortem brain edema is a common finding in medicolegal examinations.
  • Accurate estimation of brain edema poses challenges for forensic pathologists during routine autopsies.

Purpose of the Study:

  • To review methods for estimating postmortem brain edema during autopsy.
  • To evaluate the reliability of these measurements for determining the degree and extent of brain edema.

Main Methods:

  • Review of established assessment procedures including normalized cerebral weight and wet-dry weight ratios.
  • Evaluation of clinical data, imaging, gross anatomy, and histopathology.
  • Exploration of morphometric parameters, mathematical models, artificial intelligence (AI), and machine learning (ML).

Main Results:

  • Objective methods like normalized cerebral weight and wet-dry weight ratios are utilized.
  • Morphometric parameters and mathematical models offer more precise and objective evaluation.
  • AI and ML present promising tools for precise assessment of postmortem brain edema.

Conclusions:

  • Integration of objective mathematical models and AI-assisted tools significantly improves accuracy and reproducibility.
  • These advanced methods enhance routine forensic evaluations of postmortem brain edema compared to conventional techniques.