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Cardiovascular Radiology Glossary

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

restenosis

Intermediate Technical IVT

Re-narrowing of previously treated vessel segment, typically occurring within 6-12 months.

Showing 49–72 of 100

IVUS-VH

Advanced Technical IVT

Intravascular ultrasound with virtual histology technology that provides color-coded tissue characterization of coronary...

Technical Term Full entry →

IVUS-XS

Professional Technical IVT

Cross-sectional intravascular ultrasound imaging providing detailed vessel wall morphology.

Technical Term Full entry →

kissing balloon inflation

Intermediate Technical IVT

Simultaneous inflation of two balloons in the main vessel and side branch during bifurcation interventions.

Technical Term Full entry →

LAD-diagonal bifurcation

Intermediate Technical IVT

The branching point where a diagonal branch arises from the left anterior descending coronary artery.

Technical Term Full entry →

LAO

Intermediate Technical IVT

Angiographic projection angle positioning the image intensifier to the patient's left side and anteriorly.

Technical Term Full entry →

late lumen loss

Advanced Technical IVT

Quantitative angiographic measurement of luminal renarrowing from post-procedure to follow-up angiography.

LLL
Technical Term Full entry →

LCX

Intermediate Technical IVT

Left circumflex coronary artery, a major branch of the left coronary system supplying the lateral and posterior walls of...

Technical Term Full entry →

left heart catheterization

Intermediate Technical IVT

Invasive procedure to evaluate left-sided cardiac pressures, coronary anatomy, and left ventricular function.

Technical Term Full entry →

LIMA

Intermediate Technical IVT

Left internal mammary artery, commonly used as a bypass graft conduit in cardiac surgery.

Technical Term Full entry →

LIMA graft

Professional Technical IVT

Internal mammary artery conduit used for coronary artery bypass surgery, typically to the LAD.

Technical Term Full entry →

LIMA-to-LAD anastomosis

Advanced Technical IVT

Surgical connection of the left internal mammary artery to the left anterior descending coronary artery in bypass surger...

Technical Term Full entry →

LMCA

Intermediate Technical IVT

Left main coronary artery, the short segment that bifurcates into the LAD and circumflex arteries.

Technical Term Full entry →

MACE

Intermediate Technical IVT

Composite endpoint used in cardiovascular trials encompassing death, myocardial infarction, and revascularization.

Abbreviation Full entry →

minimal lumen area

Advanced Technical IVT

Smallest cross-sectional area within a coronary vessel segment, measured by intravascular imaging.

Technical Term Full entry →

MSCT

Intermediate Technical IVT

Advanced CT imaging technique using multiple detector rows for rapid, high-resolution cardiac imaging.

Technical Term Full entry →

myocardial blush grade

Professional Technical IVT

Angiographic assessment system for evaluating microvascular perfusion in the myocardium during coronary angiography.

Technical Term Full entry →

NIRS-IVUS

Professional Technical IVT

Combined imaging system using near-infrared spectroscopy and intravascular ultrasound for plaque characterization.

Technical Term Full entry →

no-reflow phenomenon

Advanced Technical IVT

Impaired myocardial perfusion despite successful restoration of epicardial coronary flow, typically occurring after repe...

Technical Term Full entry →

NSTEMI

Intermediate Technical IVT

Non-ST-elevation myocardial infarction with subendocardial tissue death but preserved epicardial flow.

Abbreviation Full entry →

obtuse marginal

Intermediate Technical IVT

Lateral branches of the left circumflex artery that supply the lateral wall of the left ventricle.

Technical Term Full entry →

OCT

Professional Technical IVT

High-resolution intravascular imaging technique using near-infrared light to visualize coronary artery microstructure.

Technical Term Full entry →

ostial lesion

Intermediate Technical IVT

Atherosclerotic narrowing located at the origin or opening of a coronary artery or branch vessel.

Technical Term Full entry →

PDA

Intermediate Technical IVT

Posterior descending artery, which supplies the inferior wall of the left ventricle and inferior interventricular septum...

Technical Term Full entry →

periprocedural MI

Advanced Technical IVT

Myocardial infarction occurring during or within 48 hours of percutaneous coronary intervention.

Technical Term Full entry →
Showing 49–72 of 100

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