| abstract |
The present invention relates to complexes which contain polycrystalline magnetic iron oxide particles in a pharmaceutically acceptable shell, and to the use of these compositions in magnetic particle imaging (MPI). Particular preference is given to the use these compositions in examining the gastrointestinal tract, the vascular system of the heart and cranial components, in the diagnosis of arteriosclerosis, infarctions, and tumors and metastases, for example of the lymphatic system. |