1. Under-recognized consequences of suboptimal labeling and imaging protocol
2. Important pitfalls of tagged red blood cell (RBC) imaging in an interactive case-based format
3. Potential role of SPECT/CT
1. Gastrointestinal (GI) bleeding- classification and etiology
2. Technique of 99mTc labeled RBC scintigraphy
a) Radiopharmaceuticals
b) Labeling techniques
c) Imaging technique
3. Illustrative case discussions
a) True positive GI bleeding scans due to various etiologies with clinico-radiographic correlation
b) False positive GI bleeding scans due to various etiologies with clinico-radiographic correlation
c) Examples of incidental findings
d) Use of SPECT/CT
4. Summary
99mTc labeled RBC scintigraphy has been widely used in evaluation of acute GI bleeding for more than three decades. Nonetheless, a few important technical and interpretive aspects of this examination are frequently overlooked. This educational exhibit emphasizes the need to recognize these imaging pitfalls via uncommon cases.
Kwatra, N,
Kim, C,
Under-recognized Pearls and Pitfalls of Tc-99m Labeled Red Blood Cell Scintigraphy In Acute Gastrointestinal Bleeding. Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL.
http://archive.rsna.org/2014/14011772.html