Rotational angiography is a medical imaging technique based on x-ray, that allows to acquire CT-like 3D volumes during hybrid surgery or during a catheter intervention using a fixed C-arm.

The resulting voxel data can then be viewed as a multiplanar reconstruction, i.e. by scrolling through the slices from three projection angles, or as a 3D volume, which can be rotated and zoomed.

[citation needed] Classically, CT imaging has been the method of choice for acquiring 3D data pre- or postoperatively.

[6] Rotational angiography may increase the exposure of workers to scattered radiation, as the X-ray source moves around the patient.

Lead curtains are often used at the table side to protect the lower body region, but these are less effective with rotational work.