Abstract: The present invention provides a method and system for progressive multi-resolution three-dimensional image reconstruction using region of interest information. The method and system significantly reduces the amount of time required to display high quality three-dimensional fluoroscopic images by utilizing progressive multi-resolution image reconstruction techniques. In addition, by employing manual or automated selection of one or more regions of interest in which to focus the progressive image reconstruction, high quality 3D images of region(s) of interest may be obtained soon after image data acquisition.

Abstract: A C-arm system is disclosed herein. The C-arm system includes a support assembly, and a C-extension connected to the support assembly. The C-extension is selectively rotatable relative to the support assembly in both a clockwise and a counterclockwise direction. The C-arm system also includes a C-gantry connected to the C-extension. The C-gantry is adapted to retain an x-ray source and an x-ray detector. The C-gantry is selectively rotatable relative to the C-extension in both a clockwise and a counterclockwise direction. The C-extension is operable to extend the range of C-gantry rotation in both clockwise and counter clockwise directions. A corresponding method for operating a C-arm system is also provided.