| abstract |
The present invention relates to complexes containing in a pharmaceutically acceptable enclosure magnetic iron oxide particles having a diameter of 20 nm to 1 μm with a total particle diameter core diameter ratio smaller than 6, and the use of these complexes in magnetic particle detection imaging, which is also known as "magnetic particle imaging" (MPI). In particular, the use of these compositions in the study of the gastrointestinal tract, the blood vessel system of the heart and cranial components, in the diagnosis of arteriosclerosis, infarcts and tumors and metastases, for example of the lymphatic system is particularly preferred. |