Medical Imaging: Technology and Applications (Devices, by Troy Farncombe, Kris Iniewski

By Troy Farncombe, Kris Iniewski

The booklet has intentions. First, it assembles the most recent learn within the box of clinical imaging expertise in a single position. specified descriptions of present state of the art clinical imaging platforms (comprised of x-ray CT, MRI, ultrasound, and nuclear medication) and information processing strategies are mentioned. details is equipped that may supply engineers and scientists a superior beginning from which to construct with extra assets. Secondly, it exposes the reader to myriad functions that scientific imaging expertise has enabled.

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Ultrahigh-Speed Real-Time Multidimensional OCT 43 the 3D data volume. The relative position of the image frame and data volume is defined by a modelview matrix, which can be controlled via the GUI. Each pixel of the 2D imaging plane is the accumulation of a virtual eye-ray going through the pixels. 9. The C-scan volumetric data set is first mapped into 3D texture memory on the GPU, and then the ray-casting kernel is launched for each pixel. 1. Here, for simplicity we only demonstrate the full-range FD-OCT images, which are more representative of the system properties than the half-range images.

R. , Optical coherence tomography, Science 254, 1178–1181 (1991). 2. S. Charles, J. Calzada, and B. Wood, Vitreous Microsurgery (Lippincott Williams & Wilkins, Philadelphia, PA, 2010). T. Peters and K. Cleary, Image-Guided Interventions: Technology and Applications (Springer, New York, 2008). 4. S. A. Boppart, M. E. Brezinski, and J. G. Fujimoto, Surgical guidance and intervention, in Handbook of Optical Coherence Tomography, B. E. Bouma and G. J. Tearney, eds. pp. 613–648 (Marcel Dekker, New York, 2001).

9, it is clearly shown that after a direct Fourier transformation, a pair of conjugate signals is generated and distributed at both sides of the zero-delay plane. Such complex–conjugate ghost image becomes the major artifact of FD-OCT imaging, and can be removed by several kinds of phase-shift interferometry methods [38–41]. In particular, here we introduce a very simple and effective method—the “simultaneous B-M-mode scanning method”—by applying a linear phase modulation j (t|x) = b*(t|x) to each M-scan/B-scan’s 2D interferogram frame I (t|x , l) [42].

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