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Related Concept Videos

Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

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Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
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Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers01:19

Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers

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Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
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Updated: Jan 7, 2026

Dried Blood Spot Collection of Health Biomarkers to Maximize Participation in Population Studies
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Biomarkers.

Cristian Montalba1, Harrison Aduluwa2, Marina Fernandez Gracia3

  • 1Biomedical Imaging Center, Pontificia Universidad Católica de Chile, Santiago, Santiago, Chile.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 25, 2025
PubMed
Summary
This summary is machine-generated.

The Scan With Me (SWiM) program trains MRI radiographers in low- and middle-income countries to improve dementia imaging. This initiative enhances diagnostic capabilities by optimizing MRI acquisition on limited infrastructure, crucial for the growing aging population.

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Area of Science:

  • Medical Imaging
  • Neurology
  • Global Health

Background:

  • Dementia burden is increasing in low- and middle-income countries (LMICs) with aging populations.
  • Magnetic resonance imaging (MRI) is vital for dementia diagnosis but access and trained personnel are limited in LMICs.
  • The Scan With Me (SWiM) program addresses this gap by upskilling radiographers for optimized dementia MRI.

Purpose of the Study:

  • To provide an update on the SWiM training program.
  • To enhance MRI acquisition skills for dementia imaging in LMICs.
  • To foster a network for improved diagnostic capabilities and data collection.

Main Methods:

  • SWiM is a free train-the-trainer initiative using RAD-AID's Teach-Try-Use strategy.
  • Combines virtual learning, expert lectures, and hands-on scanning sessions over 8 weeks.
  • Participants developed and optimized dementia imaging protocols using simulated LMIC case reports.

Main Results:

  • The second SWiM program trained 96 radiographers from 18 LMIC countries across 29 facilities.
  • Specialized training focused on dementia imaging, including hands-on sessions in Kenya and Nigeria.
  • Optimized MRI protocols adapted from ADNI standards were developed and will be shared openly.

Conclusions:

  • SWiM establishes a collaborative network to improve dementia diagnosis in LMICs.
  • The program enables collection of robust datasets for clinical care and tool development.
  • This initiative supports advancements in dementia prevention and treatment strategies through enhanced imaging.