申请人:Quay C. Steven
公开号:US20050053552A1
公开(公告)日:2005-03-10
Agents for enhancing the contrast in a diagnostic ultrasound procedure comprise colloidal dispersions of the liquid-in-liquid type, i.e., emulsions or microemulsions, in which the dispersed liquid phase is a liquid having a boiling point below the temperature of the animal to be imaged and which therefore undergoes a phase change from a dispersed liquid to a highly echogenic dispersed gaseous foam or kugelschaum following administration to the animal. The liquid state of the dispersed phase allows one to manufacture extremely stable, pharmaceutically acceptable emulsions with particle sizes typically below 1000 nm. The gaseous state at body temperature yields highly echogenic microbubbles, typically below 10,000 nm in diameter, which are effective as ultrasound contrast agents. Intravenous, intraarterial, oral, intraperitoneal, and intrauterine dosage forms, methods of administration, and imaging techniques are described.
用于增强诊断超声程序对比度的药剂包括液-液型胶体分散液,即乳液或微乳液,其中分散液相是一种沸点低于待成像动物温度的液体,因此在向动物注射后会发生相变,从分散液变为高回声分散气体泡沫或库格尔沙姆。分散相的液态使得可以制造非常稳定、药学上可接受的乳液,粒子大小通常小于1000纳米。在体温下的气态产生高回声微气泡,直径通常小于10,000纳米,可以作为超声对比剂有效。描述了静脉、动脉内、口服、腹腔内和子宫内剂量形式、给药方法和成像技术。