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Repeated Bleeding Scintigraphy May Reveal That Stationary Foci of Activity Represent Sites of Active Hemorrhage

 

作者: BORYS KRYNYCKYI,   LIONEL ZUCKIER,   ROZET TATLIDIL,   WEN-TE CHEN,   CHUN KIM,   LEONARD FREEMAN,  

 

期刊: Clinical Nuclear Medicine  (OVID Available online 2002)
卷期: Volume 27, issue 1  

页码: 25-29

 

ISSN:0363-9762

 

年代: 2002

 

出版商: OVID

 

关键词: Bleeding Scintigraphy;Hemorrhage;Stationary Focus

 

数据来源: OVID

 

摘要:

The goal of bleeding scintigraphy is to localize the site of origin of a hemorrhage to within general regions of the large or small bowel. Activity is typically seen to extravasate from the blood pool into the lumen, and the collection of activity then moves on sequential images, as a result of the cathartic action of blood. Sometimes, bleeding studies show a stationary focus of activity without subsequent movement. It is generally assumed that these foci represent fixed structures, such as the urinary tract or prominent vasculature, rather than acute extravasation of labeled blood into the bowel. The authors report three cases in which repeated studies showed that fixed foci of activity were, in fact, related to gastrointestinal bleeding. In two instances, the fixed foci represented extravasated blood that, for unexplained reasons, did not move during the study. In an additional case, the fixed activity visualized was ultimately shown to be prominent varices, which were implicated in the bleeding. Recognition of these possibilities, and consideration of possible strategies to localize the bleeding site further, should facilitate optimal patient treatment.

 

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