CONTRAST AGENTS AND THEIR USING Russian patent published in 1998 - IPC

FIELD: medicine. SUBSTANCE: invention relates to diagnostic technics, in part, obtaining an ultrasonic and magnetic-resonance image. Contrast agent is gas-containing or gas-evolving polymeric particles and/or microbubbles where polymer is a biodegradable polymer of nonpolypeptide nature containing molecules with links of the formula (II) where each of R¹ and R² means hydrogen atom or monovalent organic groups bound with carbon, or they form bivalent organic group bound with carbon together; each of m and n = 0 or 1. This contrast agent is prepared by gas or gas-generating agent addition to biodegradable polymer of the formula (II) and it provides obtaining the improved image of human or animal body by generation of ultrasonic or ИК-image. EFFECT: improved quality of image. 16 cl, 13 tbl, 6 ex