CO2 Computed Tomography

CO2 angiography is demonstrating his value in vascular imaging on patients with Iodine intolerance or renal failure. This evidence suggests using CO2 as a contrast medium also in computed tomography, mainly in peripheral arteries (BTK), where a high resolution is required, and the vessel is immobile. To face this problem two aspects must be faced: 1) the non-continuous filling of the vessel by the gas, which may produce false positives and incorrect anatomical reconstructions; 2) The difficulty to execute vascular interventional procedures in the CT rooms, not equipped for this activity. To face both these problems with XXII ICMMB Abstracts book; DOI 10.6092/unibo/amsacta/7024; ISBN 9788854970991; CCbyNC4.0 30 a feasible solution, we tested the possibility to place a small CT cone beam system in an interventional angiographic room. We used a Cone Beam TC system planned for oral CT anatomical reconstruction (suitable for a BTK imaging) with a vascular phantom with physiological pulsatile pressure and flow. We tested the possibility to have good images with a very low iodine concentration and gas injection. The test demonstrates the feasibility of this approach and opens a new prospective in the BTK imaging and intervention.