Abstract
Gastrointestinal (GI) tract examination with computed tomography (CT) is currently performed by slice-based visual inspection despite the volumetric nature of the problem. The entire abdomen may now be continuously scanned within a single breath-hold with spiral CT. The GI tract can be computationally extracted from spiral CT images, the lumen explicitly unraveled onto a plane, and colonoscopy virtually simulated via fly-through display. A semi-automatic approach was developed for fly-through and unraveling in vivo. Automation of this approach was investigated in numerical simulation. The techniques are promising for colon cancer screening.
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Kalender, W. A., Seissler, W., Klotz, E., Vock, P.: Spiral volumetric CT with single-breath-hold technique, continuous transport, and continuous scanner rotation. Radiology 176 (1990) 181–183
Crawford, C. R., King, K. F.: Computed tomography scanning with simultaneous patient translation. Med. Phys. 17 (1990) 967–982
Wang, G., Vannier, M. W.: Longitudinal resolution in volumetric x-ray CT — Analytical comparison between conventional and helical CT. Med. Phys. 21 (1994) 429–433
Kalender, W. A., Polacin, A., Süss, C: A comparison of conventional and spiral CT: An experimental study on detection of spherical lesions. J. of Computer Assisted Tomography 18 (1994) 167–176
Kalender, W. A.: Thin-section three-dimensional spiral CT: Is isotropic imaging possible? Radiology 197 (1995) 578–580
Vining, D. J., Shifrin, R. Y., Liu, K., Grishaw, E. K., Padhani, A. R.: Virtual reality imaging of human anatomy. In Computer Applications to Assist Radiology (J. M. Boehme, A. H. Rowberg, and N. T. Wolfman, eds., Symposia Foundation) (1994) 703–708
Wang, G., Vannier, M. W.: Unraveling the GI tract by spiral CT. SPIE 2434 (1995) 307–315
Woodhouse, C. E., Friedman, J. L.: In vitro air-contrast-enhanced spiral 3D CT (virtual colonoscopy) appearance of colonic lesions. Radiology 197(P) (1995) 500
Hara, A. K., Johnson, C. D., Reed, J. E., Ahlquist, D. A., Nelson, H., Ehman, R. L., McCollough, C. H., Ilstrup, D. M.: Detection of colorectal polyps by computed tomographic colography: Feasibility of a novel technique. Gastroenterology 110 (1996) 284–290
Rubin, G. D., Beaulieu, C. F., Argiro, V., Ringl, H., Norbash, A. M., Feller, J. F., Dake, M. D., Jeffrey, R. B., Napel, S.: Perspective volume rendering of CT and MR images — Applications for endoscopic imaging. Radiology 199 (1996) 321–330
Robb, R. A.: Analyzeâ„¢ Reference Manual. Biomedical Imaging Resource of Mayo Foundation (1995) (version 7.5)
Press, W. H., Teukolsky, S. A., Vetterling, W. T., Flannery, B. P.: Numerical recipes in C — The art of scientific computing. Cambridge University Press (1992) (2nd edition) 113–116
Wang, G., Vannier, M. W., Skinner, M. W., Kalender, W. A., Polacin, A: Unwrapping cochlear implants by spiral CT. IEEE Trans. on Biomed. Eng. (1996) (in press)
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© 1996 Springer-Verlag Berlin Heidelberg
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Wang, G., Vannier, M.W., McFarland, E.G., Heiken, J.P., Brink, J.A. (1996). GI tract unraveling in volumetric CT. In: Höhne, K.H., Kikinis, R. (eds) Visualization in Biomedical Computing. VBC 1996. Lecture Notes in Computer Science, vol 1131. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0046930
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DOI: https://doi.org/10.1007/BFb0046930
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