Levine G M, Rosenberg R J, Sziklas J J, Spencer R P
Department of Nuclear Medicine, University of Connecticut Health Center, Farmington 06032.
Clin Nucl Med. 1989 Jun;14(6):436-8. doi: 10.1097/00003072-198906000-00009.
During a cardiac blood pool study (Tc-99m erythrocytes), there was an apparent "cold" area in the left lobe of the liver. At one hour, the prior void appeared to have filled in, suggesting an intrahepatic hemangioma. However, the changing pattern of radioactivity, and its shape, indicated that this actually represented Tc-99m pertechnetate in the gastric wall and stomach cavity. In a second case, the interval between intravenous injection of stannous pyrophosphate and Tc-99m pertechnetate was prolonged. Changing activity, again in the gastric wall and cavity, obscured part of the liver. This cleared with time, allowing hepatic evaluation. Thus, gastric pertechnetate can contribute to blood pool images of the heart or liver and multiple images may be needed to separate this component from nearby tissues.
在一次心脏血池研究（锝-99m红细胞）中，肝脏左叶出现一个明显的“冷”区。一小时时，先前的空白区域似乎已填充，提示肝内血管瘤。然而，放射性的变化模式及其形态表明，这实际上代表胃壁和胃腔内的锝-99m高锝酸盐。在另一例中，静脉注射焦磷酸亚锡和锝-99m高锝酸盐之间的间隔延长。胃壁和胃腔内放射性的变化再次掩盖了部分肝脏。随着时间推移这一情况得以消除，从而能够对肝脏进行评估。因此，胃内高锝酸盐可影响心脏或肝脏的血池图像，可能需要多幅图像来将该成分与附近组织区分开。
