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Related Concept Videos

Brain Imaging01:14

Brain Imaging

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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

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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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Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

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Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
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Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

215
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
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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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Updated: Aug 14, 2025

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging
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Brain connectomics: time for a molecular imaging perspective?

Arianna Sala1, Aldana Lizarraga2, Silvia Paola Caminiti3

  • 1Department of Nuclear Medicine, Klinikum Rechts der Isar, Technical University of Munich, School of Medicine, 81675 Munich, Germany; Coma Science Group, GIGA-Consciousness, University of Liege, 4000 Liege, Belgium; Centre du Cerveau(2), University Hospital of Liege, 4000 Liege, Belgium.

Trends in Cognitive Sciences
|January 9, 2023
PubMed
Summary
This summary is machine-generated.

Molecular imaging, like positron emission tomography (PET), offers unique insights into brain connectivity beyond functional MRI. Integrating PET with other techniques enhances understanding of the brain connectome in health and disease.

Keywords:
PETconnectivityelectroencephalographymagnetic resonance imagingnetworkspositron emission tomography

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Area of Science:

  • Neuroscience
  • Molecular Imaging
  • Brain Connectomics

Background:

  • Brain connectomics is a key neuroscience concept, largely relying on functional MRI (fMRI) for connectivity insights.
  • fMRI primarily uses hemodynamic signals, limiting its scope in understanding brain function.
  • Molecular imaging offers unique data not accessible through MRI or electrophysiology.

Purpose of the Study:

  • To evaluate molecular imaging's role in brain connectivity.
  • To assess molecular imaging techniques (e.g., PET) for timeliness, validity, reproducibility, and resolution.
  • To advocate for an integrative approach to brain connectomics.

Main Methods:

  • Positron emission tomography (PET) for measuring neural activity, neurotransmission, and proteinopathies.
  • Comparative analysis of molecular imaging against MRI-based and electrophysiological techniques.
  • Framework evaluation based on timeliness, validity, reproducibility, and resolution.

Main Results:

  • Molecular imaging provides unique data on neural activity, neurotransmission, and proteinopathies.
  • PET demonstrates successful application in both normal and pathological cognition.
  • Molecular imaging offers distinct advantages in resolution and direct biological measurement.

Conclusions:

  • Molecular imaging is a valuable tool for brain connectomics research.
  • An integrative approach combining MRI, electrophysiology, and molecular imaging is crucial.
  • This integration will advance our comprehensive understanding of the brain connectome.