: a morphologic and histologic evaluation. J Vasc Interv Radiol. 2008 Nov;19(11):1625-38Р注射前水合?水合时产品吸收水基溶液?吸收能力为64倍自己的体积,吸收后以球形的方式膨胀,直径为原来的2-4-6倍?膨胀的大小受控于的水基溶液的离子浓度Р良好的吸收性(Absorbing)РHepaSpheres不同膨胀倍数Р2倍:10% Nacl和造影剂的混合液?3倍:生理盐水和造影剂的混合液?6倍:非离子造影剂?4倍:麦瑞通公司推荐方法Р高度的随形性(Conforming)-如影随形РHepaSphere 具有高度的随形性,可以像血管腔的模子一样堵在血管腔内,形成完全的栓塞。РHepaSphere具有高度压缩性,在血管内不断裂,不移位,适合官腔形态实现彻底的栓塞。РKhankan AA, Osuga K, Hori S et al.Embolic effects of superabsorbent polymer microspheres in rabbit renal model: comparison with tris-acryl gelatin microspheres and polyvinyl alcohol. Radiat Med 22:384–390 ?Bilbao Jl, De Luis E, Garcia De Jalon JA et al. Comparative study of four different spherical embolic particles in an animal model: a morphologic and histologic evaluation. J Vasc Interv Radiol. 2008 Nov;19(11):1625-38