Radiological imaging device

A radiological imaging device includes a gantry defining an analysis area configured to contain at least a portion of a patient to be analyzed and a circular extension trajectory extending around a central axis. The gantry includes a source configured to emit radiation, a detector configured to receive the radiation after the radiation has passed through the analysis area, and a casing defining a housing volume for at least the source and the detector. The casing includes a bottom arched module, an arched module mobile with respect to the bottom arched module, and a movement apparatus. The mobile arched module is housed in the bottom arched module and configured to vary the angular extension of the casing and of the housing volume keeping the source and the detector in the housing volume. The movement apparatus, outside the housing volume, is configured to move the arched modules. The radiological imaging device performs at least two of tomography, fluoroscopy, and X-ray.