FACTORS DETERMINING THE PROTON T1 RELAXIVITY IN SOLUTIONS CONTAINING GD-DTPA - A REEVALUATION

被引:4
作者
JACKSON, GE [1 ]
DUTOIT, LL [1 ]
机构
[1] MRC,MED BIOPHYS RES INST,TYGERBERG 7505,SOUTH AFRICA
关键词
D O I
10.1016/S0277-5387(00)83360-4
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The relaxation behaviour of Gd-DTPA in serum has been studied, the relaxation times of Gd3+ and [Gd(DTPA)]2- solutions being measured in the presence of serum albumin, CuCl2 and CaCl2. The results are interpreted in terms of a computer model of relaxivity in which all the possible metal-ion equilibria are included. Weak binding (K = 270 +/- 30) of [Gd(DTPA)]2- to serum albumin is postulated to occur.
引用
收藏
页码:1315 / 1318
页数:4
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