PT  - JOURNAL ARTICLE
AU  - Grady, Erin
TI  - Gastrointestinal Bleeding Scintigraphy in the Early 21st Century
AID  - 10.2967/jnumed.115.157289
DP  - 2016 Feb 01
TA  - Journal of Nuclear Medicine
PG  - 252--259
VI  - 57
IP  - 2
4099  - http://jnm.snmjournals.org/content/57/2/252.short
4100  - http://jnm.snmjournals.org/content/57/2/252.full
SO  - J Nucl Med2016 Feb 01; 57
AB  - Gastrointestinal bleeding scintigraphy performed with 99mTc-labeled autologous erythrocytes or historically with 99mTc-sulfur colloid has been a clinically useful tool since the 1970s. This article reviews the history of the techniques, the different methods of radiolabeling erythrocytes, the procedure, useful indications, diagnostic accuracy, the use of SPECT/CT and CT angiography to evaluate gastrointestinal bleeding, and Meckel diverticulum imaging. The causes of pediatric bleeding are discussed by age.