US5429814A
University of Texas System
PCT No. PCT/US91/09222 Sec. 371 Date May 27, 1993 Sec. 102(e) Date May 27, 1993 PCT Filed Dec. 6, 1991 PCT Pub. No. WO92/10213 PCT Pub. Date Jun. 25, 1992.The invention relates to a method of using molecular sieve-enclosed paramagnetic ions as image brightening or image contrast agents. In …