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. 2002 Jul;224(1):286-92.
doi: 10.1148/radiol.2241010646.

Three-dimensional CT with a modified C-arm image intensifier: feasibility

Ulrich Linsenmaier  1 , Clemens Rock, Ekkehard Euler, Stefan Wirth, Roland Brandl, Dorothea Kotsianos, Wolf Mutschler, Klaus Jürgen Pfeifer
Affiliations

Three-dimensional CT with a modified C-arm image intensifier: feasibility

Ulrich Linsenmaier et al. Radiology. 2002 Jul.

Abstract

A portable C arm was modified for cone-beam computed tomography (CT). This three-dimensional (3D) CT imaging system facilitated the acquisition of fluoroscopic images during a 190 degrees rotation and computed a 3D data cube (matrix, 256 x 256 x 256; scanning time, 100 seconds) with multiplanar image reformation. The high-contrast resolution, 0.9 line pairs per millimeter, was comparable; the low-contrast resolution, minimal; and the radiation dose, 60%-80% lower, as compared with these parameters at spiral CT. The normal anatomy of small joints could be depicted, and the osteosynthesis screws in the talus were correctly identified.

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