Wavelets in temporal and spatial processing of biomedical images.
We review some of the most recent advances in the area of wavelet applications in medical imaging. We first review key concepts in the processing of medical images with wavelet transforms and multiscale analysis, including time-frequency tiling, overcomplete representations, higher dimensional bases, symmetry, boundary effects, translational invariance, orientation selectivity, and best-basis selection. We next describe some applications in magnetic resonance imaging, including activation detection and denoising of functional magnetic resonance imaging and encoding schemes. We then present an overview in the area of ultrasound, including computational anatomy with three-dimensional cardiac ultrasound. Next, wavelets in tomography are reviewed, including their relationship to the radon transform and applications in position emission tomography imaging. Finally, wavelet applications in digital mammography are reviewed, including computer-assisted diagnostic systems that support the detection and classification of small masses and methods of contrast enhancement.
Laine
A F
AF
Department of Biomedical Engineering, Columbia University, New York, New York 10027, USA. laine@columbia.edu
D000465:Algorithms; D001698:Biomedical Engineering; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods* / Q000706:statistics & numerical data; D008279:Magnetic Resonance Imaging / Q000706:statistics & numerical data; D008327:Mammography / Q000706:statistics & numerical data; D011856:Radiographic Image Enhancement; D014054:Tomography / Q000706:statistics & numerical data; D014463:Ultrasonography / Q000706:statistics & numerical data