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Related Concept Videos

Brain Imaging01:14

Brain Imaging

301
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 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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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,...
50
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

431
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...
431
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

45
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
45
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

133
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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Abbiategrasso Brain Bank Protocol for Collecting, Processing and Characterizing Aging Brains
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Imaging of Normal Brain Aging.

Yoshiaki Ota1, Gaurang Shah1

  • 1Division of Neuroradiology, Department of Radiology, University of Michigan, 1500 East Medical Center Drive, UH B2, Ann Arbor, MI 48109, USA.

Neuroimaging Clinics of North America
|July 17, 2022
PubMed
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Understanding brain aging is key to healthy longevity and detecting neurodegenerative diseases. This review covers aging mechanisms and brain changes seen with MRI and advanced neuroimaging.

Keywords:
Aging mechanismCAADTILacunesMicrobleedStructural MRIWMHfMRI

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Area of Science:

  • Neuroscience
  • Gerontology
  • Medical Imaging

Background:

  • Healthy human longevity and aging brain physiology are crucial for early disease detection.
  • Neurodegenerative diseases pose significant social and economic burdens.
  • Functional decline, including reduced cognition and physical activity, is linked to brain aging.

Purpose of the Study:

  • To summarize the mechanisms of brain aging.
  • To review the effects of aging on the brain as observed through neuroimaging.

Main Methods:

  • Review of existing literature on brain aging.
  • Analysis of findings from structural Magnetic Resonance Imaging (MR imaging).
  • Examination of data from advanced neuroimaging techniques like diffusion tensor imaging and functional MR imaging.

Main Results:

  • Brain aging involves specific physiological mechanisms.
  • Structural and functional changes in the brain are observable with advanced MR imaging techniques.
  • Diffusion tensor imaging and functional MR imaging provide insights into age-related brain alterations.

Conclusions:

  • Understanding normal brain aging is fundamental for promoting healthy longevity.
  • Neuroimaging techniques are vital tools for characterizing age-related brain changes.
  • Further research into brain aging mechanisms can aid in the early detection of neurodegenerative diseases.