In small-animal SPECT, regions of increased radiotracer uptake are more easily localized through coregistration with anatomic images of the same animal. Here, low-field-strength MR images of the 3 orthogonal planes are coregistered with pinhole ^99mTc-DMSA SPECT images. The matching of the kidneys between the functional and the anatomic images demonstrates the practical advantage of this dual-modality system.
See page 88.