3D characterization of the arterial wall using intravascular ultrasound

The authors consider an application of tissue characterization techniques to images obtained from intravascular ultrasound. Three methods are considered, frequency tracking based on advanced spectral estimators, tissue characterization by edge detection, and characterization by textural analysis. A computer-based imaging system was developed that uses a multi-element catheter-mounted ultrasound probe. The system is capable of reconstructing three-dimensional models of arterial structures, which may be manipulated by computer software. The 3-D imaging capability allows a much more detailed analysis of complex stenoses and arterial lesions. An example of the results of this procedure is illustrated