Abstract

We present a one-dimensional optical fibre-based imaging catheter specifically developed for the atherosclerotic plaque detection of emerging novel near infrared fluorescence imaging agents. We show that femtomole amounts of fluorochromes can be detected, especially in the presence of a blood-free medium. We further studied the catheter responses for a wide range of laser powers and biologically relevant concentrations of fluorochrome. In vitro tissue-like phantoms and human carotid plaque specimen measurements further demonstrate the feasibility of atherosclerotic plaque detection.

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