Novel iodinated arylaliphatic triglyceride analogs, as radiologic agents are liver and hepatocyte site-specific. The triglyceride backbone structure is preferably 1,3-disubstituted or 1,2,3-trisubstituted with, in some embodiments, a 3-substituted-2,4,6-triiodophenyl aliphatic chain wherein the chain has a structure similar to naturally occurring fatty acids. In another embodiment, a monoiodophenyl aliphatic chain is utilized. Any position remaining on the triglyceride backbone is substituted with a saturated or unsaturated aliphatic hydrocarbon chain of the type found in naturally occurring fatty acids. The triglyceride analogs can be radioiodinated. In a preferred embodiment, a lipid emulsion is provided as the carrier vehicle.
                            新型
碘化芳基
脂肪酸甘油三
酯类似物作为放射学试剂具有肝脏和肝细胞特异性。
脂肪酸甘油三酯的骨架结构最好是1,3-二取代或1,2,3-三取代,其中,在某些实施例中,含有3-取代-2,4,6-三
碘苯基脂肪链的结构,其中该链的结构类似于自然存在的
脂肪酸。在另一实施例中,使用了一
碘苯基脂肪链。残留在
脂肪酸甘油三酯骨架上的任何位置都被饱和或不饱和的脂肪烃链所取代,该链的类型与自然存在的
脂肪酸相似。这些
脂肪酸甘油三
酯类似物可以被放射
碘化。在一个首选实施例中,提供脂质乳剂作为载体。