A gantry system is provided. The gantry system may be used for acquiring image data and reconstructing the image data into output images. Image detectors include a detector arm and detector head. Image detectors are attached to a gantry in a compact configuration such that the image detector head may extend into the bore of a stator. The system can be a Nuclear Medicine (NM) imaging system to acquire Single Photon Emission Computed Tomography (SPECT) image information.