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Data processing for 3-D ultrasound visualization of tumor anatomy and blood flow

Using simple tumor anatomy and flow phantoms and an algorithm for segmenting and remapping Doppler color flow data, it was demonstrated that (1) adaptive speckle reduction (ASR) can be extended to work in three dimensions with likely benefits to the performance of the algorithm and the quality of three dimensional presentations, particularly those obtained from reflection volume rendering methods, (2) three dimensional visualization of the Doppler flow data helps the observer to comprehend the vascular pattern and interpret some artefacts, and (3) volume and surface rendering methods in common usage are not ideal for these data. A new volume rendering method, termed trichromatic summed voxel projection (TSVP), was proposed which may permit three dimensional visualization of combined vascular and anatomical structures while preserving most of the echo amplitude and color velocity information.