title: Paramagnetic metalloporphyrins as potential contrast agents in NMR imaging.
abstract: Several water-soluble paramagnetic metalloporphyrins were found to increase significantly the relaxation rate (1/T1) of water. Such compounds are known to be selectively retained by tumors in animals, and consequently we identify them as potential contrast agents for tumors in NMR imaging.
mesh_terms: D003287:Contrast Media; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D008665:Metalloporphyrins; D013329:Structure-Activity Relationship
chemical_list: D003287:Contrast Media; D008665:Metalloporphyrins