Skip to main content
← Back to Advanced Cardiac Imaging

Advanced Cardiac Imaging Glossary

100 terms total — 24 showing — Last updated 15 Sep 2026

microvascular obstruction MVO

Advanced Technical IVT

No-reflow phenomenon in capillary beds following reperfusion, appearing as dark zones within areas of late gadolinium enhancement on cardiac MRI.

Showing 25–48 of 100

coronary dominance

Intermediate Technical IVT

The anatomical pattern describing which coronary artery gives rise to the posterior descending artery and posterolateral...

Technical Term Full entry →

coronary flow reserve

Advanced Technical IVT

The ratio of maximal coronary blood flow during hyperemia to resting coronary blood flow, indicating coronary vasodilato...

Technical Term Full entry →

dark blood imaging

Intermediate Technical IVT

MRI technique that suppresses blood signal to enhance contrast between cardiac structures and flowing blood for morpholo...

Technical Term Full entry →

delayed enhancement

Intermediate Technical IVT

MRI technique using gadolinium contrast to identify areas of myocardial scar or fibrosis by imaging 10-20 minutes post-i...

Technical Term Full entry →

diastolic dysfunction

Intermediate Technical IVT

Impaired ventricular relaxation or filling, assessed through echocardiographic parameters including E/A ratio and tissue...

Technical Term Full entry →

diastolic filling pattern

Advanced Technical IVT

The characteristic pattern of left ventricular filling during diastole, assessed by Doppler echocardiography to evaluate...

Technical Term Full entry →

dobutamine stress echo

Intermediate Technical IVT

Pharmacological stress test using dobutamine infusion to assess inducible wall motion abnormalities and coronary artery...

Technical Term Full entry →

dyskinesis

Advanced Technical IVT

Paradoxical outward motion of a myocardial segment during systole, moving opposite to normal contraction.

Technical Term Full entry →

extracellular volume fraction

Advanced Technical IVT

Quantitative CMR parameter measuring the proportion of extracellular space in myocardium, used to detect diffuse fibrosi...

Technical Term Full entry →

feature tracking

Intermediate Technical IVT

Post-processing technique that analyzes myocardial deformation by tracking tissue features across cardiac phases in stan...

Technical Term Full entry →

FFRCT

Professional Technical IVT

Fractional flow reserve derived from coronary computed tomography angiography, providing non-invasive assessment of coro...

Technical Term Full entry →

first-pass perfusion

Advanced Technical IVT

Real-time MRI technique that tracks contrast agent passage through myocardial tissue to assess blood flow.

Technical Term Full entry →

FLAIR sequence

Advanced Technical IVT

A magnetic resonance imaging technique that suppresses fluid signal to enhance visualization of pathological tissue chan...

Technical Term Full entry →

fractional flow reserve

Advanced Technical IVT

Hemodynamic measurement indicating the functional significance of coronary stenosis.

FFR
Technical Term Full entry →

gadolinium contrast

Intermediate Technical IVT

Paramagnetic contrast agent used in cardiac MRI to enhance tissue characterization and detect scar tissue.

Technical Term Full entry →

gated SPECT

Intermediate Technical IVT

Nuclear imaging technique that synchronizes SPECT acquisition with cardiac cycle to assess both perfusion and function.

Technical Term Full entry →

HARP

Advanced Technical IVT

Harmonic phase analysis technique for processing myocardial tagging images to quantify tissue deformation and strain.

Technical Term Full entry →

hibernating myocardium

Advanced Technical IVT

Viable but dysfunctional myocardial tissue with reduced contractility due to chronic hypoperfusion that may recover func...

Technical Term Full entry →

hypokinesis

Intermediate Technical IVT

Reduced but present wall motion and thickening of a myocardial segment during systole.

Technical Term Full entry →

IVUS

Intermediate Technical IVT

Intravascular ultrasound; catheter-based imaging providing cross-sectional views of coronary artery walls and lumen.

Abbreviation Full entry →

late gadolinium enhancement

Advanced Technical IVT

MRI technique using contrast agent to identify myocardial scar tissue and fibrosis.

Technical Term Full entry →

LCX

Intermediate Technical IVT

Epicardial coronary artery that supplies the lateral and posterior walls of the left ventricle.

Technical Term Full entry →

LIMA graft

Intermediate Technical IVT

A bypass conduit using the left internal mammary artery, typically anastomosed to the left anterior descending coronary...

Technical Term Full entry →

LMCA

Intermediate Technical IVT

Left main coronary artery. Short but critical vessel that supplies blood to the LAD and circumflex arteries.

Abbreviation Full entry →
Showing 25–48 of 100

Editors from these organisations have used our services since 1998

Reuters BBC Oxford University Press Penguin Random House Springer Microsoft Suncor Energy United Nations Fisher Investments IBM The Home Depot KODAK CHEVRON