Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Alzheimer's Disease: Overview01:26

Alzheimer's Disease: Overview

1.6K
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
1.6K
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

251
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...
251
Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

212
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,...
212
Brain Imaging01:14

Brain Imaging

629
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...
629
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

460
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
460
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

758
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...
758

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Automated Airways Characterization and Assessment of Cystic Fibrosis from CT Imaging.

medRxiv : the preprint server for health sciences·2026
Same author

WSB.APP/PS1 mice develop age-dependent cerebral amyloid angiopathy, cerebrovascular dysfunction, and white matter deficits.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same author

Neurovascular-metabolic dysregulation, metabolic connectomics, and metabolic functional changes in Alzheimer's disease: A preclinical and clinical comparison.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same author

Multiscale metabolic covariance networks uncover stage-specific biomarker signatures across the Alzheimer's disease continuum.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same author

Multidomain Analysis of Clinical Cognitive Assessments and Imaging Data in Alzheimer's Disease Accurately Predicts Disease Stage and Grade Independent of Amyloid and Tau.

bioRxiv : the preprint server for biology·2026
Same author

Humanized Klotho haplotypes cause widespread transcriptomic changes in mouse brain.

bioRxiv : the preprint server for biology·2026
Same journal

Unveiling the procoagulant state in Alzheimer's disease: A novel PET imaging strategy.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same journal

Estimated labor market outcomes of people progressing from preclinical to early-stage Alzheimer's disease in the United States.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same journal

Amyloid exacerbates tau and alpha-synuclein pathologies, behavioral impairments, and neuroinflammation in a mixed dementia model.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same journal

Multimorbidity burden and patterns associated with DeepBrainNet-derived brain-age gap in dementia-free older adults: A community-based study.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same journal

Reply to "Shifting the emphasis of brain health literacy from individuals to systems to reduce inequalities".

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same journal

Shifting the emphasis of brain health literacy from individuals to systems to reduce inequalities.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
See all related articles

Related Experiment Video

Updated: Jan 8, 2026

Hybrid PET/MRI Imaging of Alzheimer's Disease Based on 18F-AV-1451
05:17

Hybrid PET/MRI Imaging of Alzheimer's Disease Based on 18F-AV-1451

Published on: April 18, 2025

751

Alzheimer's Imaging Consortium.

Juan Antonio Kim Hoo Chong Chie1, Scott A Persohn2, Ravi S Pandey3

  • 1Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 23, 2025
PubMed
Summary
This summary is machine-generated.

Metabolic and vascular dysfunction (MVD) patterns in the brain can be detected early in Alzheimer's disease and related dementias (ADRD). This approach offers a sensitive diagnostic tool for improved patient monitoring and therapeutic strategies.

More Related Videos

Visualization of Amyloid β Deposits in the Human Brain with Matrix-assisted Laser Desorption/Ionization Imaging Mass Spectrometry
09:31

Visualization of Amyloid β Deposits in the Human Brain with Matrix-assisted Laser Desorption/Ionization Imaging Mass Spectrometry

Published on: March 7, 2019

11.0K
Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly
12:50

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Published on: April 14, 2014

40.8K

Related Experiment Videos

Last Updated: Jan 8, 2026

Hybrid PET/MRI Imaging of Alzheimer's Disease Based on 18F-AV-1451
05:17

Hybrid PET/MRI Imaging of Alzheimer's Disease Based on 18F-AV-1451

Published on: April 18, 2025

751
Visualization of Amyloid β Deposits in the Human Brain with Matrix-assisted Laser Desorption/Ionization Imaging Mass Spectrometry
09:31

Visualization of Amyloid β Deposits in the Human Brain with Matrix-assisted Laser Desorption/Ionization Imaging Mass Spectrometry

Published on: March 7, 2019

11.0K
Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly
12:50

Lesion Explorer: A Video-guided, Standardized Protocol for Accurate and Reliable MRI-derived Volumetrics in Alzheimer's Disease and Normal Elderly

Published on: April 14, 2014

40.8K

Area of Science:

  • Neuroimaging
  • Biomarkers
  • Neurology

Background:

  • Traditional medical imaging for Alzheimer's disease and related dementias (ADRD) often detects changes late in the disease, after irreversible brain damage has occurred.
  • This lack of sensitivity and specificity compromises treatment planning and patient outcomes.
  • Recent preclinical data suggests regional metabolic and vascular dysfunction (MVD) are present throughout the ADRD spectrum, yet few studies have explored these combined measures in clinical populations.

Purpose of the Study:

  • To investigate whether combined metabolic and vascular dysfunction (MVD) measures can serve as a sensitive and early noninvasive diagnostic tool for ADRD.
  • To test this hypothesis in a retrospective clinical population spanning from cognitively normal (CN) to Alzheimer's disease (AD).

Main Methods:

  • Utilized 18F-FDG PET and ASL MRI data from 290 subjects in the ADNI database (CN, MCI, AD).
  • Generated cerebral blood flow (CBF) and PET images, registered them to an atlas, and computed regional z-scores relative to CN.
  • Performed statistical analysis on at-risk regions, hierarchical clustering, and aligned findings with transcriptomic signatures and cognitive assessments.

Main Results:

  • Disease progression followed a distinct MVD pattern, suitable for stage-dependent detection of at-risk brain regions.
  • MCI subjects exhibited uncoupled MVD (Type 1: ↓18F-FDG,↑CBF; Type 2: ↑18F-FDG,↓CBF), while AD subjects showed prodromal (↑18F-FDG,↑CBF) and neuro-metabolic-vascular failure (↓18F-FDG,↓CBF) phenotypes.
  • These MVD patterns aligned significantly with transcriptomic and cognitive signatures.

Conclusions:

  • Metabolic and vascular dysfunction (MVD) in at-risk brain regions is influenced by sex, APOE status, age, and disease stage.
  • MVD patterns identified through combined PET and ASL MRI offer a sensitive diagnostic tool for early ADRD detection.
  • This approach may enhance patient monitoring, stratification, and the testing of therapeutic interventions for ADRD.