Volume Rendering of 3D-Tomographic Imagery

Radiological examinations are increasingly based on sequences of cross-sectional images. In current clinical applications, the three-dimensional (3D) relationships contained in these examinations must be inferred by the observer through analysis of multiple two-dimensional (2D) images. In this paper, methods for the direct display of 3D gray level data are investigated. In the chosen approach, the 3D presentation of bone and skin surface serves to orient the viewer, while planar reformation and/or transparent projections can be applied for the assessment of soft tissue structures in regions of interest. The resulting images represent the original image data in a way that is more suitable for observation of 3D relationships than the conventional cross-sectional viewing mode. This may facilitate the diagnostic process and enhance the interpretability of the images. Routine clinical application of this technique requires special computer hardware.

[1]  Donald Meagher,et al.  Geometric modeling using octree encoding , 1982, Comput. Graph. Image Process..

[2]  G. Herman,et al.  Three-dimensional reconstruction of craniofacial deformity using computed tomography. , 1983, Neurosurgery.

[3]  M W Vannier,et al.  Three-dimensional display of intracranial soft-tissue structures. , 1983, AJNR. American journal of neuroradiology.

[4]  M M Ali,et al.  Small-cell carcinoma of the lung: patterns of treatment failure in patients treated primarily by chemotherapy. , 1984, Radiology.

[5]  M W Vannier,et al.  Three dimensional CT reconstruction images for craniofacial surgical planning and evaluation. , 1984, Radiology.

[6]  J. A. Johnson,et al.  Computer graphics for digitally formatted images. , 1984, Radiology.

[7]  Jayaram K. Udupa,et al.  Surface Shading in the Cuberille Environment , 1985, IEEE Computer Graphics and Applications.

[8]  D. Jackél,et al.  The Graphics PARCUM * System: A 3D Memory Based Computer Architecture for Processing and Display of Solid Models , 1985, Comput. Graph. Forum.

[9]  David Baraff,et al.  Physician's Workstation with Real-Time Performance , 1985, IEEE Computer Graphics and Applications.

[10]  Gabor T. Herman,et al.  Stereoscopic computed three-dimensional surface displays. , 1985, Radiographics : a review publication of the Radiological Society of North America, Inc.

[11]  U. Tiede,et al.  Combined Use of Different Algorithms for Interactive Surgical Planning , 1985 .

[12]  R. Bernstein,et al.  Shading 3D-Images from CT Using Gray-Level Gradients , 1986, IEEE Transactions on Medical Imaging.

[13]  R Bernstein,et al.  Combined surface display and reformatting for the three-dimensional analysis of tomographic data. , 1987, Investigative radiology.