Related Experiment Video
Updated: Aug 23, 2026

Oxygenation-sensitive Cardiac MRI with Vasoactive Breathing Maneuvers for the Non-invasive Assessment of Coronary Microvascular Dysfunction
Published on: August 17, 2022
Cardiovascular magnetic resonance and the role of adenosine pharmacologic stress
1Cardiovascular Magnetic Resonance Unit, Royal Brompton Hospital, London, United Kingdom. d.pennell@imperial.ac.uk
Insights
Cardiovascular magnetic resonance (CMR) provides high-resolution heart imaging for various conditions. Its accuracy makes it ideal for serial measurements and emerging applications like myocardial perfusion assessment.
Area of Science:
- Cardiovascular Imaging
- Medical Diagnostics
- Cardiac MRI
Background:
- Cardiovascular magnetic resonance (CMR) is an advanced imaging technique.
- It offers high spatial resolution for cardiac and vascular assessment.
- CMR is clinically established for conditions like congenital heart disease, tumors, and cardiac function.
Purpose of the Study:
- To highlight the established clinical applications of CMR.
- To discuss emerging clinical applications of CMR, including myocardial perfusion and viability.
- To explain the methodology of perfusion CMR studies.
Main Methods:
- Utilizes high spatial resolution imaging of the heart.
- Employs pharmacologic stress (e.g., adenosine) in perfusion studies.
- Assesses myocardial perfusion by evaluating contrast agent delivery differences.
Main Results:
- CMR demonstrates high interstudy reproducibility for left ventricular volumes, ejection fraction, and mass.
- It is an ideal noninvasive technique for serial cardiac measurements.
- Emerging applications like myocardial perfusion, infarction, and viability evaluation are nearing routine clinical use.
Conclusions:
- CMR is a versatile and accurate imaging modality for cardiac assessment.
- Its reliability supports serial monitoring of cardiac conditions.
- CMR is expanding into advanced applications for diagnosing myocardial issues.
Abstract:
As an advanced imaging modality, cardiovascular magnetic resonance (CMR) offers high spatial resolution and produces unsurpassed images of the heart and its function. Clinically, CMR is well established in the assessment of congenital heart disease, the aorta, tumors, the pericardium, cardiac mass and function, flow measurement, and the structure and function of the right ventricle. CMR has demonstrated a high interstudy reproducibility of left ventricular volumes, ejection fraction, and mass, making it the ideal noninvasive technique for serial measurements. CMR growth areas that are nearing routine clinical application are the evaluation of myocardial perfusion, infarction, and viability. In perfusion CMR studies, pharmacologic stress is used to increase differences in the first-pass delivery of the contrast agent between myocardial regions perfused by normal and diseased arteries. The most widely used stress modality for CMR perfusion studies is adenosine.
Related Concept Videos
Imaging Studies for Cardiovascular System IV: CMRI
Imaging Studies for Cardiovascular System V: CT
Acute Coronary Syndrome III: Diagnostic Studies
Exercise Stress Test
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Cardiopulmonary Resuscitation IV: Pharmacological Management
Magnetic Resonance Imaging
