Enzmann D R, Lyons B E, Carroll B, Placone R C, Rasor J, Britt R H, Buxton J, Wilson D
AJNR Am J Neuroradiol. 1982 Jan-Feb;3(1):41-5.
A new sonographic contrast agent, gelatin-encapsulated nitrogen microbubbles, was introduced intraarterially to enhance the high-resolution sonographic scan of an experimental brain abscess. The echogenicity produced by the microbubbles correlated closely to the site and distribution of abscess neovascularity. The contrast agent aided in the detection of small necrotic centers in the late stages of abscess evolution when these centers were not visualized on noncontrast sonograms. The echogenic effect of the microbubbles was maximum immediately after injection; it decreased by 5 min and had virtually disappeared at 15 min.
一种新型超声造影剂——明胶包裹的氮微泡，通过动脉内注射引入，以增强对实验性脑脓肿的高分辨率超声扫描。微泡产生的回声与脓肿新生血管的部位和分布密切相关。在脓肿演变后期，当非增强超声图像无法显示小坏死中心时，这种造影剂有助于检测这些中心。微泡的回声效应在注射后立即达到最大值；5分钟后降低，15分钟时几乎消失。
