INITIAL CLINICAL-EXPERIENCE WITH A NEW KIT FORMULATION OF TC-99M-BETA-GALACTOSYLATED ALBUMIN FOR FUNCTIONAL HEPATIC IMAGING

被引:14
作者
BOSSUYT, A
DEGEETER, F
JACOBS, A
CAMUS, M
THORNBACK, JR
机构
[1] Department of Nuclear Medicine, Academisch Ziekenhuis, Vrije Universiteit Brussel, Brussels, 1090
[2] IRE, Fleurus
[3] Medgenix Group, Fleurus
关键词
D O I
10.1097/00006231-199007000-00002
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
We studied the biodistribution, imaging characteristics and pharmacokinetics of a new kit formulation of Tc-99m-β galactosylated albumin (NGA). In all subjects, even in those patients with severe hepatocellular dysfunction, Tc99m-NGA provided excellent hepatic images and the liver was the only site of uptake of the tracer. Between 2 and 15 min post injection, the blood disappearance curve was found to be adequately described by a mono-exponential function. The fractional disappearance rate (ki) ranged from 0.089 min-1in normals to 0.039 in cirrhotic patients. The initial volume of distribution (VDi) of the tracer was always higher than the expected blood volume, the difference ranging from 5% in patients with the most impaired liver function to 54% in those with normal liver function. Both parameters discriminated completely the cirrhotic patients from the normal control group. A significant dose dependency of VDiwas observed indicating that at least during the first minutes after injection liver uptake is determined by both available receptor concentration and hepatic blood flow. © 1990 Chapman and Hall Ltd.
引用
收藏
页码:469 / 475
页数:7
相关论文
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