Fig. 4From: Technical opportunities and challenges in developing total-body PET scanners for mice and ratsSensitivity of small animal scanners that can perform both total-body rat and total-body mouse studies. The sensitivities were estimated using the solid angle coverage, and the sensitivities at the center of the scanners were reported using the published data. Note the need to extend the axial length of the scanner beyond the length of the rat to ensure sufficient sensitivity as realized at the two ends of the animalBack to article page