C. F. Heyns and W. F. Van-gelderen, Three-dimensional computed tomographic imaging of the pelvicaliceal system: analysis of factors influencing image quality, Eur Urol, vol.22, pp.298-302, 1992.

P. A. Smith, F. F. Marshall, and E. K. Fishman, Spiral Computed Tomography Evaluation of the Kidneys: State of the Art, Urology, vol.51, issue.1, pp.3-11, 1998.
DOI : 10.1016/S0090-4295(97)00465-2

J. Dillenseger, C. Hamitouche, and J. Coatrieux, An Integrated Multi-purpose Ray Tracing Framework For The Visualization Of Medical Images, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991, pp.1125-1126, 1991.
DOI : 10.1109/IEMBS.1991.684374

P. Rheingans and D. Ebert, Volume illustration: nonphotorealistic rendering of volume models, IEEE Transactions on Visualization and Computer Graphics, vol.7, issue.3, pp.253-264, 2001.
DOI : 10.1109/2945.942693