Abstract
Intracoronary ultrasound imaging is a modality which allows in vivo cross-sectional visualization of coronary arteries similar to that obtained by pathology. Compared with coronary angiography, intracoronary ultrasound provides more detail on plaque morphology and topography and more accurate quantification of lumen and plaque area. Thus, it has evolved into a valuable research tool. For example, intracoronary ultrasound imaging has increased understanding of the mechanisms of action of balloon angioplasty and new interventions such as atherectomy and laser treatment. It may prove to have clinical utility by helping to individualize device selection and sizing and by assessing treatment results more accurately. Coronary imaging may be performed at low risk. Future developments will include smaller catheters, combined ultrasound and therapeutic catheters, and three-dimensional reconstruction of images.
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