MOLECULAR-SIEVE BASED MRI CONTRAST AGENTS

被引：20
作者：
BALKUS, KJ
BRESINSKA, I
机构：
[1] Department of Chemistry, University of Texas at Dallas, Richardson
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1994年 / 207卷
关键词：
D O I：
10.1016/0925-8388(94)90170-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The application of zeolite molecular sieves as magnetic resonance imaging contrast agents for the gastrointestinal tract is described. Results for the preparation and characterization of zeolite GdNaY, the principle component of Gadolite, are presented. Ion exchange studies suggest GdNaY is stable to relatively low pH values as well as in dilute NaCl solutions. Preliminary relaxivity (R) measurements of aqueous GdNaY suspensions at room temperature and 40 MHz indicate an increase in R with a decrease in zeolite gadolinium loading.
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页码：25 / 28
页数：4
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