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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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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 II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

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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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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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Dementia01:30

Dementia

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Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual....
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Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

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Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
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Using Retinal Imaging to Study Dementia
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Future Imaging in Dementia.

David J Brooks1

  • 1Translational and Clinical Research Institute, University of Newcastle upon Tyne, UK; Department of Nuclear Medicine, PET Centre, Aarhus University, Denmark; Department of Brain Sciences, Imperial College London, UK.

Seminars in Nuclear Medicine
|December 23, 2020
PubMed
Summary
This summary is machine-generated.

Advanced imaging techniques are crucial for diagnosing dementias and tracking disease progression. Future research will focus on developing specific imaging markers for key pathologies and assessing treatment efficacy.

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Area of Science:

  • Neuroimaging
  • Neurology
  • Pathology

Background:

  • Imaging significantly aids dementia diagnosis, preclinical detection, and disease monitoring.
  • Established consensus guidelines exist for dementia imaging, requiring further validation.
  • Standardized approaches for binary threshold use in abnormality status are needed.

Purpose of the Study:

  • To identify unmet needs in dementia imaging.
  • To explore future directions for advanced imaging biomarkers.
  • To highlight the role of imaging in evaluating novel dementia therapies.

Main Methods:

  • Review of current imaging applications in dementia diagnosis and progression tracking.
  • Identification of gaps in current imaging capabilities.
  • Projection of future research areas in neuroimaging for dementia.

Main Results:

  • Imaging is essential for objective tracking of dementia progression.
  • Need for standardized imaging analysis and specific biomarkers for tau, TDP-43, and alpha-synuclein.
  • Imaging will be vital for assessing immunotherapy and neuroprotective strategies.

Conclusions:

  • Imaging plays a pivotal role in dementia diagnosis, monitoring, and therapeutic evaluation.
  • Future imaging research must address specific molecular targets and inflammatory processes.
  • Validated imaging biomarkers are critical for advancing dementia treatment efficacy studies.