Digital tomosynthesis: technique modifications and clinical applications for neurovascular anatomy.

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Abstract
Digital tomosynthesis studies (DTS), using a linear tomographic motion, can provide good quality clinical images when combined with subtraction angiotomography. By modifying the hardware system and the computer software algorithms, tomo-synthesis images were reconstructed using an isocentric rotation (IR) motion. Since this is the motion used by C-arm and U-arm angiographic units, these modifications allow for the use of DTS studies in most modern angiographic suites, at a reasonable cost. Applying a combination of linear tomographic and IR techniques in clinical cases, DTS studies were performed in 6 patients, 5 with aneurysms and 1 with a hypervascular tumor. Detailed definitions of the pathologic entities and the regional neurovascular anatomy were obtained. Based on this early experience, DTS would seem to be a useful technique for the preoperative surgical planning of vascular abnormalities.

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