Volumic image analysis application bundle for UNIX workstations

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Abstract
A set of applications has been developed for volumic medical image display and analysis in PET and MRI. Although the set may appear at first glance, as a implementation in X-Windows of a package previously developed at CTI under SunView, major improvements have been added to its functionality. All graphical user interfaces have been developed with InterViews, a public domain C++ library on top of X-Windows, in an effort to standardize the look and feel of all applications. They run on SUN/Spare and Digital UNIX workstations and support CTI ECAT and Interfile image formats. They are presently used on a daily basis for multimodal image display and analysis in the authors' laboratory. These applications are: (i) iv-colortool: a color lookup table server for multimodality image display which can be loaded with external tables when displaying fusion data, (ii) iv-volumetool: an orthogonal viewer which allows visualization of multiframe volumes as large as whole body studies. Multiple instances of the application can be created with linked cursors, a useful feature for visualizing coregistered studies, (iii) iv-heartool: an orthogonal viewer which allows heart volume reorientation along the long axis and generation of short axis slices on multiframe studies and (iv) iv-brain-align: an orthogonal viewer which allows rigid transformation of dynamic multi-tracer brain data. All applications can be controlled through a command language interface using UNIX keywords to control input/output and parameters. This feature allows their direct use from acquisitions scripts on CTI PET scanners controlled with System 7.

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