Cardiology Intervention Glossary
100 terms total — 24 showing — Last updated 15 Sep 2026
fractional flow reserve FFR
A physiological measurement used to assess the functional significance of coronary stenosis during catheterization.
coronary wire entrapment
Inability to withdraw a guidewire from the coronary artery due to mechanical obstruction or vessel trauma.
crossover
The procedural switch from radial to femoral arterial access or vice versa during cardiac catheterization.
culprit lesion identification
Process of determining which coronary stenosis is responsible for acute coronary syndrome symptoms.
culprit vessel
The coronary artery identified as the primary cause of acute coronary syndrome symptoms.
directional coronary atherectomy
A percutaneous intervention technique using a catheter with a cutting blade to remove atherosclerotic plaque from corona...
dissection plane
The anatomical layer within arterial wall tissue where separation occurs during coronary dissection.
door-to-balloon time
Quality metric measuring time from hospital arrival to balloon inflation during primary PCI for STEMI.
drug-coated balloon
Specialized balloon catheter coated with antiproliferative medication to prevent restenosis.
drug-eluting stent
A coronary stent coated with medication to prevent restenosis after implantation.
dual antiplatelet therapy
The combination of aspirin and a P2Y12 inhibitor to prevent thrombotic events after coronary stenting.
edge restenosis
Recurrent narrowing occurring at the proximal or distal margins of a previously placed stent.
excimer laser coronary angioplasty
A catheter-based intervention using ultraviolet laser energy to ablate atherosclerotic tissue and thrombus in coronary a...
FFR-CT
Computed tomography-derived fractional flow reserve used to assess coronary stenosis significance non-invasively.
fractional flow reserve
A physiological measurement used to assess the functional significance of coronary stenosis during catheterization.
geographic miss
Incomplete lesion coverage by stent deployment, leaving diseased segments untreated at the proximal or distal edges.
guide catheter
Large-bore catheter that provides stable support and access for delivering interventional devices during coronary proced...
guidewire escalation
Sequential use of increasingly supportive or penetrative guidewires when standard wires fail to cross challenging lesion...
guidewire externalization
A technique where a guidewire is passed through a chronic total occlusion and captured from another arterial access site...
hemodynamic compromise
Significant impairment of cardiovascular function affecting blood flow and pressure during intervention.
hemodynamic monitoring
Continuous assessment of cardiovascular function parameters during interventional procedures.
hemostasis
The process of achieving bleeding control at vascular access sites following cardiac catheterization procedures.
in-stent restenosis
Re-narrowing of coronary artery lumen within a previously implanted stent due to neointimal hyperplasia.
instantaneous wave-free ratio
A physiological index for assessing coronary stenosis severity without the need for hyperemic agents.
intravascular ultrasound
An imaging technique using ultrasound from within coronary arteries to assess vessel characteristics and guide intervent...