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Proceedings Paper

Interactive alignment and subtraction of two tomographic 3D imaging studies
Author(s): Michael J. Flynn; Jeanne Li; Dianna D. Cody
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Paper Abstract

Three-dimensional tomographic data sets are routinely produced in CT and MRI studies. Particularly good quality sagittal and coronal views can be obtained when the z-slice thickness is similar to the x and y pixel size within the original transverse views. When image data has been acquired on the same subject at two separate occasions, it may be useful or necessary to rotate and translate the data from the second study so that it is spacially aligned with the first study. We have developed interactive graphic software to interpolate image files in three orthogonal planes which can be arbitrarily oriented and to align the data from two studies using subtraction views as an indicator of alignment and differential value. The design elements for this software are described in this paper. Two thin slice x-ray CT studies from the same subject are used to illustrate the software.

Paper Details

Date Published: 14 September 1993
PDF: 9 pages
Proc. SPIE 1898, Medical Imaging 1993: Image Processing, (14 September 1993); doi: 10.1117/12.154573
Show Author Affiliations
Michael J. Flynn, Henry Ford Hospital (United States)
Jeanne Li, Henry Ford Hospital (United States)
Dianna D. Cody, Henry Ford Hospital (United States)

Published in SPIE Proceedings Vol. 1898:
Medical Imaging 1993: Image Processing
Murray H. Loew, Editor(s)

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