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Related Concept Videos

Brain Imaging01:14

Brain Imaging

404
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
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Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

8.1K
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...
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Related Experiment Video

Updated: Oct 21, 2025

3D Modeling of the Lateral Ventricles and Histological Characterization of Periventricular Tissue in Humans and Mouse
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3Tesla post-mortem MRI quantification of anatomical brain structures.

Isabel Arnold1, Nicole Schwendener1, Paolo Lombardo2

  • 1Institute of Forensic Medicine, University of Bern, Switzerland.

Forensic Science International
|September 5, 2021
PubMed
Summary
This summary is machine-generated.

Quantitative post-mortem MRI provides crucial T1, T2, and PD values for brain structures. Temperature correction is key, enabling advanced diagnostics for forensic pathology.

Keywords:
BrainPost-mortem magnetic resonance neuroimagingPost-mortem magnetic resonance quantification

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Area of Science:

  • Neuroimaging
  • Forensic Science
  • Biophysics

Background:

  • Quantitative post-mortem MRI (PMMR) enables measurement of T1 and T2 relaxation times and proton density (PD).
  • These quantitative PMMR values hold potential for advanced post-mortem neuroimaging diagnostics, including computer-aided diagnosis.
  • However, established quantitative T1, T2, and PD values for normal anatomical brain structures using 3 Tesla PMMR were previously unknown.

Purpose of the Study:

  • To evaluate quantitative T1, T2, and PD values of post-mortem brain structures using 3 Tesla PMMR.
  • To assess the influence of corpse temperature on these quantitative values.
  • To establish baseline data for future diagnostic applications in forensic pathology.

Main Methods:

  • A quantitative PMMR brain sequence was applied to 50 forensic cases before autopsy.
  • Measurements of T1, T2, and PD values were conducted on various brain structures (cerebrum, brainstem, cerebellum).
  • Quantitative values were corrected for corpse temperature, with temperature dependence primarily observed for T1 values.

Main Results:

  • Significant differences in quantitative values were found between different anatomical brain structures, confirmed by ANOVA testing.
  • Temperature dependence was mainly noted for T1 values, highlighting the importance of correction.
  • The study successfully established temperature-corrected 3 Tesla PMMR values for normal brain structures.

Conclusions:

  • Temperature-corrected 3 Tesla PMMR T1, T2, and PD values are feasible for characterizing and discriminating normal anatomical brain structures.
  • This foundational research provides essential data for developing advanced diagnostic tools for forensic brain lesions and pathology.
  • Quantitative PMMR offers a promising avenue for objective post-mortem neuropathological assessment.