Gamma camera, positron emission / computed tomography X-ray combination imaging device, positron emission / computed tomography X-ray combination imaging device, positron emission / computed tomography X-ray combination imaging device, positron emission / computed tomography X-ray combination imaging device, single photon emission computed tomography , Single Photon Emission Computerized Tomography X-ray Combination Imaging Device, Positron Emission / Computed Tomography X-ray Combination Imaging Device, Positron Emission / Computed Tomography X-ray Combination Imaging Device, Positron Emission / Computed Tomography X-ray Combination Imaging Device, Single Photon Emission Computerized Tomography X-ray Combination Imaging Device , Single photon emission computed tomography X-ray combination imaging device, single photon emission computed tomography X-ray combination imaging device