<unk>  typically used laser-induced<unk>  to stimulate<unk>  emission of particular vessel wall and plaque components or previously injected molecular agents (i.e., molecular imaging).<unk>  detection can be obtained by integration over a short period of time of the emitted intensity, life-time (i.e.,<unk> -lifetime imaging microscopy or FLIM), or by analyzing the spectral shape of emitted<unk> <unk>  spectroscopy). Near-infrared light is often used to stimulate<unk>  emission in the case of intravascular applications. Imaging catheters contain an optical fiber to deliver and collect light to and from inner lumen of human body through semi-invasive interventions (e.g., percutaneous coronary intervention in case of coronary arteries).
Intravascular fluorescence
Segmental blood pressure
Dye tracing
Perfusion scanning
Intravascular imaging
Doppler ultrasonography
Carbon dioxide angiography
Thorpe tube flowmeter