Method and apparatus for obtaining three dimensional tomographic

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378901, 364522, G06F 1542

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046740465

ABSTRACT:
According to a scan planning method for obtaining any tomographic image by a CT system, projection data of a plurality of parallel slices is acquired by a computed tomographic scanning device. The tomographic images are interpolated in accordance with the tomographic data of the slices which is obtained by the CT scanning device thereby providing the three-dimensional image data. A three-dimensional object image is then displayed on a display in accordance with the three-dimensional image data. A viewpoint for the object image changes, and an orientation angle of the object image changes in accordance with a manually input coordinate information. A slice position image representing the designated position and angle of the slice is displayed three-dimensionally in accordance with the coordinate information. The CT scanning device is controlled in accordance with the position and angle of the slice position image with respect to the object image.

REFERENCES:
patent: 3621214 (1971-11-01), Romney
patent: 4174481 (1979-11-01), Liebetruth
patent: 4418387 (1983-11-01), Yamaguchi
patent: 4422146 (1983-12-01), Yamaguchi
IBM Technical Disclosure Bulletin, vol. 27, No. 7A, Dec. 1984, pp. 4026-4027.

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